Framerate drop/lag in 1.8 for some hardware setups

I can partially confirm a framerate drop compared to the other versions.

System specifications and actual hard numbers would be a lot more helpful.

I noticed a drop, but I just thought it might be other processes on my pc.

As mine is tagged duplicate, I'll post here what I put:
When traversing chunk boundaries and chunks at the edge of the render distance are loaded and being rendered, a significant amount of chunk updates are performed per frame (I have observed anywhere from 2/300 up to about 600 depending on render distance)

This has been tested on a variety of render distances from 3 up to 16 and appears to affect all of them.

If the player stays within the boundaries of a single chunk then the chunk updates reduce drastically and FPS returns to normal. It only happens when chunks are loaded into render and require updating.

My guess just by the sheer amount of chunk updates is that it updates all chunks loaded or something like that and it's possibly in aid of fixing the "world doesn't load" issues.

For me I average at about 100-120 fps above ground in a normal world but now my fps drops to around 24 on any render distance while I am moving

@Joe Groocock:
Same hapens on my side. I have around 22 fps when I start a world in 14w04a. In 1.7, I get more than 100 fps.

Confirmed, 14w03b I get 70 FPS but on 14w03a only around 20(unless i stand completely still)

Can confirm. 14w04a: ~20 fps when standing still, 0-5 fps when moving. 1.7.4: ~30 fps when standing still, ~20 when moving. Tested in Nether only.

Confirmed. 17 FPS I should be getting ~60+

Same for me with 14w04a, and has been so for every snapshot since 14w2c. Get up to max frame rate, then zero, up and down for the entire time I played in a new world.

I can confirm. I usually get 120 fps but with the snapshot I get closer to 20-25. I checked my resource monitor included in Windows 7 and my graphics cards starts running at top speed and gets very loud. I'm gonna wait till they patch this to play again. I don't want my card to get damaged.

I confirm this. Every ~10-20 blocks, I experience a drop to 25 FPS as the game performs usually 200 or 400 chunk updates. This didn't happen in the last snapshot.

The chunks have been updating too frequently since 1.7.4; my computer never froze with Minecraft with almost all settings default, and now it freezes for several seconds whenever new chunks are loaded.

Game is ok, then it goes 70 chunk updates, then 2 again, then 70... Too much lag in 14w04a... =(
And Fps the same, 100, 20, 100, 20... Hotfix pls, game is unplayable now.
It happens even when I have render distance 2 chunks...

Just to also add in, my fps is 100 on a plot world in 1.7, 14w03b is 70 and 04a is 20, clearly something weird is happening

same issue. huge FPS drop and stuttering, in snapshot 14w04a. Also the FPS drop is exacerbated further by the new x,y,z coordinate cross-hair.

Well Jonathan Symon, we're not.

Jonathan Symon: Press F3 to get the debug screen and the move a bit. See the chunk updates? That's causing the lag for most people, except the ones that have a NASA system at home.

The same for me. Latest java. ATI gfx.

Most likely fixed in today's snapshot, however I need to check.

Appears fixed for me

Looks like it come back to my old fps, at least no more lag spikes, nevermind, looks like fixed)))

the newest snapshot fixed some of the problems with the FPS for me, but im still not getting the same fps im used to in 1.7, I ran some tests between 1.7, 03b and 04b, and in 1.7 i was averaging about 75 - 95 fps, (03b was about the same, maybe a bit less) but on 04b its only maxing at about 75 still, its better than what it was but its still not fixed for me I think

EDIT: I also just tried 1.7.2 and im getting over 100 fps, I think there might be some kind of lag problem affecting any versions over 1.7.2

There's been a fairly massive amount of refactoring going on between 1.7.2 and the current snapshots. Some of these refactors may affect the overall frame rate, not the least of which is the conversion of block coordinates from a simple X, Y, Z tuple to a proper encapsulating class. One may as well compare the frame rate in a version of Infdev to 1.7.2 and claim that the decrease in frame rate is a bug - progress has its costs. If you're still managing to hit well over 60fps, this is not a valid reason to re-open the bug.

To be sure, we are continually working on improving the engine, and with these improvements could potentially come some optimizations, it's just that in the near term we are concentrating on global engine cleanups that could make it easier to make optimizations in the future.

I can confirm this is not fixed 14w04b. I first saw it in 14w04a and it continues. I was always getting between 60 and 90 FPS no matter what. What is happening now is some kind of cycle. Even when I am standing still, about every 8 to 10 seconds, the FPS drops all the way down to between I'd say 10 and 30. It stays down for less than a second. Then it comes up again only to repeat the slowdown 10 seconds later. It never used to do this. I know this is a snapshot and stuff is a work in progress. Please don't close this ticket. Something is still broken.

@Adam: Please force a crash by pressing F3 + C for 10 seconds while in-game and attach the crash report ([minecraft/crash-reports/crash-<DATE>-client.txt|http://hopper.minecraft.net/help/finding-minecraft-data-folder]) here.

I confirm it is not fixed. FPS is now 40-45FPS, in 1.7.4 it was 60, but more importantly the game crashes after 10-15 seconds.
These are my crash reports:
https://dl.dropboxusercontent.com/u/11435743/minecraft/hs_err_pid6260.log
https://dl.dropboxusercontent.com/u/11435743/minecraft/hs_err_pid6804.log
https://dl.dropboxusercontent.com/u/11435743/minecraft/hs_err_pid7044.log

1. C [atioglxx.dll+0xb26764]

Crash in AMD display driver. Not a Minecraft issue, update your drivers from http://support.amd.com/en-us/download

Ok, the crash report is attached. I want to update my findings on this after I rebooted my PC and then played for quite some time. I found the very bad and repeatable drop in FPS like what I reported before occurs only at the beginning and it does "even out" after a short time it seems. The behavior does not exist in 1.7.4 I am certain of it. I played the same world on 1.7.4, and it didn't happen. What I also see is I was actually getting framerates all the way up to my maximum in most areas, the max is 120. It looks like with the latest snapshot I can achieve this same max framerate. My summary of what I see is this:

The framerate is much more volatile since 14w04b. The game "hitches" if you will much more now.

This ticket is specifically that the game performs too many chunk updates thus limiting the framerate. This has clearly been resolved and I'm going to let another moderator choose how to handle this.

Turning down settings does not help, getting 40-45FPS on ATI 7970 OC 🙂

I agree it has improved since 140w4a. Whether chunk updates have made it better fine. If you want to close it because of this fine by me. It is still slower than 1.7.4. But call that another issue then.

Major framerate loss in SSP on 14w28a, compared to 14w27b. Playing on a semi-marginal notebook (i5-2410M @ 2.30GHz, Intel HD3000 graphics, 16GB RAM).

It isn't an issue of other running software, as I am comparing 14w27 and 14w28a with the same other applications running. I mention it because while 14w27b was only a little slow (9-15fps, estimating avg. around 11) compared to 1.7.x (and expected, given it IS a snapshot and thus not optimized, though it was not too painful), 14w28a, despite the changelog indicating optimizations were made, has become so slow as to be unplayable (4-8fps, estimating avg. around 6).

MC-61451 "Frame rate drop in 14w28b" got fixed for next snapshot.

I too have seen a major framerate drop in 14w28a and b. It runs at the cap I set (80 fps) most of the time and then it will drop hard to the 30s or so and come back up. It has been many snapshots since I have seen this behavior. I just read Kumasasa says its fixed in the next snapshot. That would be good.

In my case the fps drop occurs when crossing chunks. As long as I stay on the same chunk I get stable fps, when I move to different chunk I get ~20fps for a second or two.

This isn't just "the game runs a bit slower", this is "the game is pretty much unplayable". My computer may be slow, but I've already turned the graphics all the way down. When I place blocks, I can't see them for 10 - 20 seconds. Much of the landscape doesn't render, some of it for several minutes. When I place a torch, I can see the flame, but the torch doesn't appear and there is no light. The lag is so great that I have difficulty walking around because of things that have not yet rendered. This is a game breaker.

Not sure if already said before, but most lags and performance issues are a result of blindly relying on hyperthreading which slows the whole game down if not supported by the CPU (it’s is actually VERY common).

[14:55:52] [Client thread/INFO]: Setting user: porrohman
[14:55:52] [Client thread/INFO]: (Session ID is token:d17eb13fb76649e49bd82c20948ea77f:6ace3bb772134a128c204dfa9763e102)
[14:55:54] [Client thread/INFO]: LWJGL Version: 2.9.1
[14:55:55] [Client thread/INFO]: Reloading ResourceManager: Default
[14:55:56] [Sound Library Loader/INFO]: Starting up SoundSystem...
[14:55:56] [Client thread/WARN]: File minecraft:sounds/mob/ghast/fireball.ogg does not exist, cannot add it to event minecraft:item.fireCharge.use
[14:55:56] [Thread-6/INFO]: Initializing LWJGL OpenAL
[14:55:56] [Thread-6/INFO]: (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
[14:55:56] [Thread-6/INFO]: OpenAL initialized.
[14:55:56] [Sound Library Loader/INFO]: Sound engine started
[14:55:59] [Client thread/INFO]: Created: 512x512 textures-atlas
[14:56:15] [Server thread/INFO]: Starting integrated minecraft server version 14w33a
[14:56:15] [Server thread/INFO]: Generating keypair
[14:56:16] [Server thread/INFO]: Preparing start region for level 0
[14:56:17] [Server thread/INFO]: Preparing spawn area: 60%
[14:56:17] [Server thread/INFO]: Changing view distance to 8, from 10
[14:56:17] [Server thread/INFO]: porrohman[local:E:d27f4d01] logged in with entity id 285 at (177.72666440389872, 49.0, 278.3762143236016)
[14:56:17] [Server thread/INFO]: porrohman joined the game
[14:56:19] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2077ms behind, skipping 41 tick(s)
[14:57:11] [Server thread/INFO]: Saving and pausing game...
[14:57:11] [Server thread/INFO]: Saving chunks for level '33a'/Overworld
[14:57:11] [Server thread/INFO]: Saving chunks for level '33a'/Nether
[14:57:11] [Server thread/INFO]: Saving chunks for level '33a'/The End
[14:57:13] [Server thread/INFO]: Stopping server
[14:57:13] [Server thread/INFO]: Saving players
[14:57:13] [Server thread/INFO]: Saving worlds
[14:57:13] [Server thread/INFO]: Saving chunks for level '33a'/Overworld
[14:57:13] [Server thread/INFO]: Saving chunks for level '33a'/Nether
[14:57:13] [Server thread/INFO]: Saving chunks for level '33a'/The End
[14:57:14] [Client thread/INFO]: Stopping!
[14:57:14] [Client thread/INFO]: SoundSystem shutting down...
[14:57:14] [Client thread/WARN]: Author: Paul Lamb, www.paulscode.com

Can't keep up is a new message that has not occured in any previous snapshot. I am well aware that things have changed, since I only play snapshot.
Previous version of snapshot have been hit and miss, and this is one of the misses. w32 was fine.

Note this is a freshly generated SSP hardcore map, biome is forest. Graphics are turned all the way to low. I am getting 50-60 fps at times, then it's dropping down to 0-4 for a period of time, then back up.

I have same issue too. Still concern in 1.8pre-1. When I stop and dont move the camera I get back up to 60fps (vsync on). Whenever I move the camera or move away from my last position or whatever makes the new chunks load drops my fps to 10-20. Sometimes even 0 and game stops.
Note: I tested this on different graphics options but it affects every single option and every single render distance.
Note 2: I have Intel Core i5 M430 and my cpu usage goes up to %100 whenever I move.

Turning off Vsync and raising the max FPS to unlimited actually helped (40-70 FPS, with drops to 20 FPS which works just fine). With Vsync on, the FPS drops to 1 every few seconds.

I don't know who decided to add "Easy Fix to reduce the lag: Turn down the graphical settings.", but I'm very annoyed. Nearly everyone who's commented has stated that they turned graphic settings down already. It's like when you call tech support and say, "it's been doing this for weeks, when I reboot the computer it's just as bad, and I've uninstalled and reinstalled it twice," and they tell you to shut down and reboot your computer, and that will fix the problem.

Graphics are all the way down. The lag is better in 1.8pre then it was a month ago when I last commented, but it's still very laggy. If I'd just started playing this game, I would have dropped it because it was so clumsy. As it is, I'm already hooked, so I put up with it. But this lag is bad. I might go back to 1.7 for a while.

I don't think so. Usually I got 40-50 fps, now I have 120-200. I played always on same 8 chunks setting, max fps, vsync off, everything other on max.

Can also not confirm. Settings: 8 chunks, vsync off, rest max: ~90 FPS in 1.7.10, ~120 FPS in 1.8 on an old AMD Radeon 6700.

I have this problem as well in 1.8-pre1. Anytime I move there is extreme lag. Turning down graphic setting does nothing, only fix so far is to reduce distance to 2 chunks. I do not have this problem in 1.7.10.

Problem is with Vsync off, turning it on makes it worse.

1.8-pre2 still has this issue. This is for both saved games and new worlds.

Can confirm. 1.8 Snapshots are giving me way less FPS.

The discription of this issue should be changed. It's clear that changing graphical setting does not help, and there is no reason to get new hardware when 1.7 run fine and 1.8 is touted as having changes to increase preformance.

Thank you, Matthew. One of the draws of Minecraft is that it doesn't have those high-res graphics that make games unplayable on a modest machine. You shouldn't have to get a new computer every couple years, when your computational needs are fairly basic.

I wish they hadn't made the single-player have to use the client-server model, I think that's behind a lot of bugs.

I totally get that Mojang is trying to better that game and get better performance for everyone. I also think everyone reporting this bug is just looking to help. A lot of people don't try the snapshots or the pre-releases and if they suddenly get an update and now can't play Minecraft because of lag the last thing they need to be told is that things change and to get new hardware. More so when looking at the first two crash reports shows people are not having the problem with crap systems.

I know that the description might not be very helpful for various people, but this is all we can tell you. This bug has not been resolved yet, but may be resolved by a dev soon, since they technically already implemented the performance changes.

Galaxy_2Alex your last post would be a better description. The issue I take is that telling individuals who have the understanding to be posting about this issue that an easy fix is to turn down graphic setting or get new hardware is condescending. Save for a few individuals most posters are going to understand that it is hard to account for all hardware/software setups.

For the 1.8 pre-release 3 I have everything turned down to lowest quality and frames set at 60. When moving around the world frames are 60 then drop to 0/1 for 3-5 sec., then jump back up to 60, and then repeats. Also when standing still and turning slowly the fps randomness happen. The fps drops make the game unplayable.

When looking straight-up and moving fps is fine.

@HummerSaurus
That sounds a lot like [MC-68080].

Still having this issue in 1.8-pre3, saved game and new game. Changing video settings does not help.

Also, thank you Alex.

Still in pre3. Tested on 12, 10 and 8 render distances. All of them are the same. This just doesnt give less fps. This makes the game unplayable!

Hey seems, that I got the same problem. In minecraft 1.7.10 I got up to 110 fps, and most of the time they did not get under 90 frames per second. But now since the new updates(I tried 1.8-pre1, 1.8-pre2, and 1.8-pre4) I get 20 fps in average, even if I do not move. When I begin to move the fps are going down to 3 or less. It is not even playable now. Also world loading and saving takes forever. I play both in 1.7.10 and in the 1.8 pre releases with full graphics setting except the view distance(I set it to 10 chunks). I hope somebody will fix this before the final 1.8 update.

My specs:
intel core i5 3.1GHZ
8gb DDR3
samsung SSD with 1gb cache(its pretty fast)
ATI radeon hd 6630 with 1gb dedicated vram.

windows 7 64 bit
java 1.7.0_67 64 bit

Why doesn't anyone help? I am having the same problem

Simon, I'm sure they are trying. It can't be easy to try and track down a bug that seems to only be affecting certain hardware setups.

I have been playing Minecraft snapshot 14w32d on my laptop and was having no framerate issues whatsoever.

I just got a NEW intel quad core i7 2.5GHz laptop with Windows 8.1 64 bit., java 1.7.0_67, 8 Gb RAM, an Intel HD 4600 display with an NVIDIA GeForce GTX 860 graphics card (both with 2 Gb RAM), which runs all the games I have better than ever.

EXCEPT MINECRAFT. This issue makes it worse than on my old laptop! It seems to stutter most when loading new chunks, and is smoothest when puttering around a small area.

I'm having the same problems. Other than knowing that my Computer isn't the best, I'm able to play 1.7.10 with decent Frame Rate, and even some small ModPacks, but almost all the Snapshots I tried and 1.8 pre1 and pre3 the lag spikes is still there. While Mining it isn't that bad, but when going to the surface it's lag as hell, kinda the type of lag you are used to get when you generate a new world, but even after days of playing its still the same.

mojang is probably working on this issue, but the problem seems more complicated than we think
Just found out that it lags and freezes even when the game is paused (esc) o_o thats weird.

When I pause the game, then suddenly the chunks are loaded and rendered in hyper speed?
I noticed this, while I was walking around. On the far sky I am able to see new chunks being loaded and rendered very slow. Entering the pause menu let minecraft render and load new chunks in incredible speed. But the framerate is still at 3fps. In my opinion this is really strange. Something has to be messed up.

I just tested 1.8-pre3 on my linux system(same hardware). I am using the default radeon driver not the fglrx one, and it works pretty good.
Linux: ~30fps
Windows: ~1 to 4 fps(rapidly changing)

But I miss the behavior of 1.7.10. With 1.7.10 I had always more than 90 fps.

Playing on 1.8pre3, the frame rate is really bad (frequently less than 1fps, averages somewhere around 5fps) when I was getting consistently 25-30fps in 1.7.10.

Here's the weird bit: While I am recording (using FRAPS) the frame rate returns to 30-40fps and stays there. It only does it while I'm actually recording, and the lag issues return as soon as I stop recording. I have no idea what could be causing this behaviour.

This could be really bad if it is still present in the final version of 1.8 and people have this happen. More so if they try and go back to 1.7.10 and find that all their items are not gone from their inventories. Not everyone keeps backups of their saved games.

Issue remains unchanged for 1.8.

I run minecraft on a nvidia geforce 7500 which gives me 18-20 fps when standing still. I can play with no issues at all. But when i move the chunk updates bring it to its knees. I have render distance 2, vbos on, smooth lighting off particles and clouds off, framerate unlimited.
Its clearly not a graphical issue but something else.
This happens also when logging onto a server

Please fix. Chunk updates should not impact gameplay.

P.s. the lag to 0fps is the worst when moving around in an undersea temple

Now that 1.8 came out I ran home and wanted to play it. Then I downloaded then update and immediately started my single player world. When I run on lowest i get 60 FPS but when I just higher that by a little bit I get 1-6 FPS... And in 1.7.10 with highest settings I got 400 FPS average...
Specs: Intel i7 4770k, GTX 770, 16GB Ram... So shouldn't 1.8 "BOOST" the performance, especially with VBOs....
EDIT: Well, actually, now when I allocated 512MB Ram (Xms java flag) and dedicated 4GB (Xmx java flag) it works alot better now when under 16 render distance... So I'd recommend that you (Mojang) work on the render distance fps drop bug.

I'm at my wits end with this, for nearly three months now on many many versions of Minecraft I get massive FPS drops when just looking around my world. I have a i5-4570, 8 gigs of ram, Windows 8.1, GTX 760 with latest drivers, the games installed to an SSD, the game is vanilla, this happens in SP, Realms and MP. It happens in Full screen and windowed mode. I've tried Java 32, 64, 7&8. I've tried so many things. I load up a world and I get a solid 100-120 FPS, then after a couple seconds I get drops of 60-80FPS every couple of seconds. Sometimes Minecraft says it's allocated 100% of memory, sometimes not, I've upped the memory, lowered it.

I just have no idea what to do anymore. The game is unplayable and I don't want to reformat my PC for one game. All other games work great!

I made a Youtube showing what it looks like.

https://www.youtube.com/watch?v=Iv6EjeM_z88

Here's a second video with different Ram settings and Java 1.8

http://youtu.be/Z0l8PDMqucg

The 1.8 lag is annoying. Please sort it out

Running i7, windows 7, GTX 760, 8 gb ram. In 1.7.0 I would get random places on the realm with massive fps drop, sometimes down to 0. It was always the same places on the map with nothing special about them. No machines, redstone, etc. Just random fps drops.

Now with 1.8, everywhere I go I get massive fps drops. standing still, i get fine performance. When I run around, I get massive drops in frames. SIngle digits. The whole game plays super laggy now in 1.8. I have lowered all of the video settings but nothing helps. My computer should handle this game no problem.

Help?

I added my system specs. Maybe it helps

I tested the final 1.8 release yesterday. The performance is as bad as in 1.8-pre3. Eventually it is the exact same version?

This issuse and MC-68080 are most likely related.

Noticed that the fps drop happens if you don't move, but you turn in a 360 degree motion. Also, possibly just V-Sync, but while the fps drop happens, labeled fps shows around 30, even though the fps is choppy.

I was having issues with this as well. The "Upgrade your hardware/lower your settings solution" is pretty worthless for the most part. This is the fix that worked for me:

1.) Download the 64 bit version of JRE8u20 from Oracle's website and install it: http://www.oracle.com/technetwork/java/javase/downloads/jre8-downloads-2133155.html

2.) Load the Minecraft launcher and select "Profile Editor." Select your profile and click edit profile.

3.) Check the box that says JVM Arguments. And change the value that says "-Xmx1G" to "-Xmx2G" or higher... This determines the maximum allocation of RAM for the JVM that runs Minecraft. If you'd like, you can even add the following argument to set a minimum value: "-Xms2G"

After performing these steps I saw immediate improvement in frame rate (10FPS to 150FPS) and drop in game lag. Hope this helps someone out there.

Java 8 did not improve 1.8 for me. CUP usage still goes to 100% on loading a world and stays there.

The Java 8 fix did help me, but only slightly:

FPS seems a bit more consistent, and I'm not spiking as often as I have been. However, chunks still take forever to load.

The Java 8 did not work. Still freeze frames every few seconds and then allows a few seconds of play. I tried to go back to 7.10 and discovered that I'd been stripped of all armour and inventory. Every chest was empty and the paintings had been pulled off the walls. Signs I had posted around the place had been changed. It was as though some very thorough thieves and vandals had gone through the place except that I play single.

Cassandra - see MC-45009 and https://twitter.com/jeb_/status/507193706781614080 regarding the inventory stuff

Why is it not updated that it still affects (even the release-) 1.8 version, but still "14w04b"?

@@unknown: Done

@Kumasasa Thank you }=)

For the people this is effecting I have a question. How many cores does your processor have? I have an older intel processor which is only a single core. Could the now use of multithreading be the reason for this problem?

No that should not be the reason for me. I have a dual core cpu with hyper threading (4 cores). Also the use of the cpu stays always very low(in difference to older versions).

I have tested on a 4 core build, an 8 core build, and a dual core build (all AMD). Same issue. Adjusting the JVM arguments resolved it, however.

Cleaned up my .minecraft folder. Graphic Settings: Render distance: 16 chunks, Smooth Lighting=Maximum Graphics=Fancy, Clouds=off, OpenGL=off, VRBO in 1.8=on VSYNC=Off Full Screen=Off Conditions: All other programs closed, and just restarted my pc. Tested in a new world generated in 1.7.10. In 1.7.10 FPS went from 140-350fps with an average of about 200. In 1.8 Fps went from 60-140fps with around 100 average.
My PC Specs are: i7 4770k @4.2ghz quad core, Asus Maximus VI Hero, 16GB of Ram, 2x Samsung 840 EVOs in RAID 0, 2x nVidia GeForce GTX 760, Windows 7. My average fps in Battlefield 4 is higher.

From the video I made, I'm running Java 8 and still getting lag.

https://www.youtube.com/watch?v=Z0l8PDMqucg

Did you adjust the -Vmx1G JVM argument to a bigger number? Also, are you running 64 bit jre8u20?

I did yes, I tried 2G, 4g, 6g, and I'm using 64 bit jre8.

No improvement in FPS? Is your proc maxing out at 100% when the JVM initializes?

Not sure on the processor I'll have to check on that. But I'm getting 120-160 FPS but every few seconds it drops about 40+ Frames. It's only when I'm viewing the world with camera movement, if I run in a straight line it's either nonexistant or very reduced.

When the spike does occur it is weird that whatever is in my hand almost appears to swing. But I don't think it's actually swinging. You can really see it in my video I posted at about the 12 second mark if you click on the gear in the Youtube video and select speed .25, you see the arm/sword swing forward a bit. Not sure if that's tied into this or not though.

I can confirm for 1.8 as I can barely play with the low frame rate. My video settings are just the same as it was before the update and my computer is not old or bad in any way.

I can confirm this bug too.
Playing with the same settings as in 1.7.10 my framerate is about 60-70fps as long as I stand still. As soon as I start walking around, the framerate drops to 8-20 fps.
Lowering all my graphics-settings, including the resolution, does helps me to play on 12-30 fps. (fast graphics, 6 chuncks render distance, no particles, etc)

On 1.7.10 i had a framerate around 45 fps constantly.

It seams to me like world you did play on 1.7.10 and then migrated to 1.8 do have higher performance-drops.
On new 1.8 worlds framerates are a bit better...

Same problem by me.
It is not about lags. It is about FPS drop. Just in 1.8.

What I figured is that these drops appear only while I'm moving (direction doesn't matter) and the environment I'm in is irrelevant - tried on newly-created world; tried on existing server filled with redstone machines that could cause problems to the server; tried in corridors with let's-say-that's-really-enough-amount-of-torches; tried in empty corridors and on flat world. Everywhere - SP, MP, any gamemode - the same. As long as I stand still everything's fine and I get about 100 FPS while when running it gradually drops until below 10 FPS and remains like that. The faster I move the faster it drops (I mean sneaking -> running -> sprinting).

I have also tried to look on the CPU and RAM usage. It's all fine, neither less nor more than usally when I was playing 1.7.10.
Graphical settings also do not matter. I've tried to change settings, lower them, higher them. Of course it does help a bit, but it's not what causes FPS drops and makes the game unplayable.
I have reinstalled graphic card drivers, downloaded latest Java version, had fun with Java arguments and graphic card settings. None of these worked to fix the problem.
Even the hardware doesn't seem to contribute as I tried it out on my computer (WinXP 32-bit, Intel Core 2 Duo E4500, nVidia GT440, 2GB RAM), on my brothers computer (Vista 64-bit, Intel Core 2 Duo E4500, nVidia GTS 250, 4GB RAM) and on my friends computer (don't remember specification but dual-core, Vista 64-bit and >= 4GB RAM)

Well, I think that these drops may be somehow connected with loading of chunks. As I said before - when I walk in closed corridor (3 x 3 tunnel) I don't see changes in environment, just the corridor. That means it's not about problems with rendering objects but with loading them. Just a thought.

The funniest thing about this problem is that while the 1/4 of players (having average hardware) face this bug the other 3/4 of players (that have amazing hardware) got the "amazing performance boost" at the same time. 😃
Not trying to be sarcastic but it seems that Mojang took from the poor to give to the rich. 🙂

Waiting for bugfix.
Over

Christopher Andthatsit
Is describing the Problem very precisely in his post.

And yes - It happens on all of my computers too (Notebook, PC, PC2, ...) even on the new one.
I am using Java 1.8.
It happens on Linux (Ubuntu Gnome 14.04) an on Windows 7.

@Christopher it isn't just the people who have older computers. My PC is a 2400 USD pc built less than a year ago. I am currently facing this bug too 😞

Well, it works better for me now in 1.8 than it was for a while in the snapshots. It's as good as 1.7 was for me, so what lag I have left I'm content to blame on my hardware. It's no longer dysfunctional. Of course, that's my system, and it seems like everyone's is taking it differently.

@Alex That's it, there are most likely thousands of different PCs affected by this bug and that's exactly what assures me that the problem is in their code and not in anyone's hardware. 😉

@Daniel, my advice is don't go back to 1.7 unless you backed up your world. All of your inventory and possessions disappear. Not backwards compatible. The changes in the way the game keeps track of stuff will help sometimes and be more complicated sometimes. They're still working on it, you can tell. Every tweak and some people say it's better and some worse.

So far I know that this bug subsided in the first pre-release and came back for the second, third, and final release, but is there any other quick tips or anything that have been discovered that fix this bug?

Also, is anyone else having any graphical glitches with the fps loss? It seems when I look around the world, which is most prevalent on flat areas with constant textures, it looks like in between blocks, there are pixels missing and like rainbow coloured? I'm not sure really how to explain it, but if someone else has the same type of glitch as well, it would be nice to know that I'm not alone.

Thanks a lot!
~X

I first noticed the slowdown yesterday when it upgraded to 1.8, but even after downloading Java 8, there has been no improvement.
My computer isn't that old (4 years), and has been able run Minecraft fine up until this update.

@AleX Gibbs
You said, that you get strange looking pixels on far flat areas? I have them too, both on linux(newest radeon driver) and windows(newest graphics driver). I do not know what you mean with the "rainbow" thing. If i generate a flat world it is almost impossible to determine, what happens on the last chunks you can see, because of this pixels(they hide everything under themselfs).

Guys,
This isn't likely a Minecraft issue, as hard as it is to hear. Otherwise, all computers would be affected. I haven't had any performance issues, myself. If the problem lies with 1.8, then no one could play, but from what I have seen the majority of minecrafters have experienced performance boosts. Spouting off, "I tried this and it didn't work" doesn't really help. It may be a hardware issue or a software issue, but I can't see it being coding.

I think you all need to decipher what you have in common.

I, personally, have had this "sort" of thing a few times, but it was related to Skype. I suggest issuing a crtl-alt-delete and seeing what processes are running (perhaps at high RAM uses), then see if you all have a certain program.

Seeing that people with this issue have posted that they have a variety of OS, CPUs, GPUs, and had no issues running 1.7.10 kinda points to a Minecraft issue.

@Matthew, actually no it doesn't at all.
It does point to the fact that a small group of people are experiencing a very annoying issue running Minecraft, while the vast majority of Minecrafters are running 1.8 without issues. In fact, in some of these reports, updating Java is the fix for the issue.

This is a hardware/software issue not related to Minecraft coding.

@qmagnet read my previous posts where I compared the two versions side by side and received 100 less fps running everything the same except the version.

@qmagnet It is not a ram issue. I've tried running with nothing else, only minecraft and still this problem persists. I have 8gb system memory, 1gb of dedicated memory. This is a minecraft issue. It was running fine before 1.8, now it's not. Honestly, unless you have the data to back it up, you can't say that the majority of the users are doing better. If there are thousands of computers with various setups, all having the same issue, how is it our hardware? And yes it does help to say what works and what doesn't work. That's what bug testing consists of.
For me, updating to from java 32bit to 64bit helped a little. I went from lagging at 1-2 FPS around water to 8-10FPS. It is at least somewhat playable, but is a band-aid, not a solution. This is minecraft, not some highly graphics intensive program. Should not be lagging like this when other games, which require far more from our systems, play fine. I also tried uninstalling/reinstalling minecraft and java which did not help. Changing video settings did nothing either.
My system specs are:
win 7 64bit
core i5 @2.4ghz
radeon HD 5000 w/ 1gb ram
8gb system ram
running java 64 bit now

It may be software related to something other than Minecraft, as I said originally.

If this issue is based on coding from the devs, why am I not experiencing it? I have the same version of Minecraft as you. I can confirm there were some laggy bits in previous snapshots. But after 14w30a, there has been a noticeable FPS boost throughout my computer - as intended from the devs.
Every single bug on this report that is valid can be reproduced and verified on the same platforms - except bugs like this that are personal setup related.
It may not be a hardware issue, but it very well could be a program you guys have all running in the background.

What I can tell you is I've had numerous players test my map, and none of them came back and told me of a mysterious FPS drop issue like this. Or look at any of the thousands of Let's Plays of Simburbia - a map that came out for 1.8 - this issue isn't present in any of them.

Did you upgrade Java? I know personally this did fix this issue for a friend of mine.
Did you actually add RAM to your profile? PC RAM means nothing if you haven't actually allocated it to Minecraft. I haven't played with 1GB in so long, it could be related to this.
Is your hard drive clicking?
Are guys running vanilla or modded?
Full screen or windowed?
These are the questions you should be asking. What makes your system different than the ones that are working?

I'm not saying you guys aren't having problems. I'm saying I doubt Mojang can fix it since they aren't experiencing any issues to source out the cause.

I still voted for this bug cause I hope guys can play again.

As of around 40 minutes ago, this problem is magically fixed. Mojang must have updated something because I did nothing.

@qmagnet
Had you read our previous posts would you know that we all have different hardware - Operating Systems, CPUs, CPU architectures, amounts of RAM etc. and THE ONLY THING we have in common is Minecraft.
You affirm that all of us have some (maybe the same) program running in the background? And it appeared all of sudden? And that program is slowing down only Minecraft? Only the 1.8 Minecraft, to be specific? You've got another thing coming.

As we said, nothing like that had happened in 1.7.10. It's about the update.
I have no clue how they managed to dispose us of FPS while giving others the performance boost, but they made it happen.
Seriously. The only possible solution lies within the lines of code of this update.

@JohnHarrington
I haven't noticed anything like that so far 😉

@Christopher
bummer, man. I literally did nothing. I didn't even shut down my computer overnight and the lag is now gone. I can't explain it. It was lagging like that since the 2nd when 1.8 released. I was hoping others would show the same thing this morning. They had to have released some sort of fix. /boggle

I have been testing to see what causes most lag.
When there are large bodies of water in my loaded chunks(seas, oceans) I get most lag. When moving in an ocean temple its especially bad.

On solid land only chunks I get normal fps ish, playable at least.
But as soon as an waterbody gets loaded I drop fps like crazy.

Can anyone confirm if they have the same?

yes, Michael, that's what was happening to me before. Anywhere there was water it would drop to really low FPS. I'm surprised since I had the same problem (that now seems to be fixed) wouldn't be fixed for those having the same issue. It's really weird.

It's still lagging. I'm forced to play in 1.7.10 to do anything somewhat up-to-date. I'm getting kind of sick of it. I'd been reading about this update for who knows how long, and now I can't even play the game in that version.

Okay, so what I did do, which seemed to help with the lag, was using java 64bit over 32bit. Of course this is only an option if you have a 64 bit version of windows. If you do, try that and see if it helps.

Me again, just noticed that my CPU seems half broken so that 1 reason my FPS went down from 500 to 100 in 1.7.10 (When I switched back) and my temps go up from 35 to 56 when I play minecraft! Just sayin' that 20% of the people might have lag like this because of hardware issues! Like me =(

We will investigate this issue on this Reddit post: http://www.reddit.com/r/Mojira/comments/2foad6/mc45458_mc68080_finding_the_possible_cause_of_the/

If you are experiencing this issue, please look at this post so that we can do further investigations.

@@unknown et al: Does MC-58057 describe your issue ? Is the lagging decreased when reducing the particles ? Please attach screenshots with debug screen active while lagging to MC-58057

I confirm this. I am playing Minecraft since 1.1.2 Alpha with the same computer and I have never experienced such low fps: if i stand still fps are easily over 60 like in all the previous Minecraft builds, but when i walk/run they go down to even less than 10. If I approach water minecraft is nearly freezing, at around 5 fps.
Singleplayer is unplayable, multiplayer barely.

Did some research on minecraft forum, and seems like lots of people are experiencing the same issues: please look at threads in "Recent Updates and Snapshots", like:

http://www.minecraftforum.net/forums/minecraft-discussion/recent-updates-and-snapshots/2202539-is-1-8-lagging-for-you-poll-lets-settle-this-issue

http://www.minecraftforum.net/forums/minecraft-discussion/recent-updates-and-snapshots/2205517-i-think-i-found-the-source-of-the-extreme-lag-in

It seems the water is the culprit here.
Some infos on my rig:
Windows 7 32 bit - Tried both with java 7 and java 8
4 GB RAM
Intel Core 2 Duo P7350 2 GHz
Nvidia 9600M GT

EDIT: in order to improve performance, I tried to lower render distance, quality on Fast, Clouds OFF and Particles decreased. Nothing helped, performance in 1.8 are still garbage while in 1.7.10 or before are good.

Ok, I believe I've fixed this on my machine. I am using the Java 8 version. I have to use vsync. and I use these Java arguments from this thread. I also have to be in full screen.

http://www.minecraftforum.net/forums/support/server-support/server-administration/1937726-java-7-8-command-line-options-for-minecraft

-Xmn2G -Xss4M -Xms4G -Xmx4G -XX:+UseLargePages -XX:+AggressiveOpts -XX:+UseFastAccessorMethods -XX:+OptimizeStringConcat -XX:+UseBiasedLocking -Xincgc -XX:MaxGCPauseMillis=10 -XX:SoftRefLRUPolicyMSPerMB=10000 -XX:+CMSParallelRemarkEnabled -XX:ParallelGCThreads=10 -Djava.net.preferIPv4Stack=true

And it's eliminated the lag for me. Not sure what exactly it's done but it's working so far. But I'm not holding out hope too much. This tends to happen, it'll go away then come right back.

Edit: It does still come back sometimes and I'm not sure why but this does help a lot.

@qmagnet
I do not think it is some software bug outside minecraft.
I can not really prove this, but I tried this:
*Installed a fresh archlinux(pretty basic distribution, no gui, just the basic needed processes)

*Installed java

*Installed xserver architecture(and the radeon driver)

*Installed the sound systems

*Tried minecraft(instead of 4 fps I get something between 9 and 14)
allocated all of my 7.6 free gigs of ram for minecraft

*Uninstalled java and installed java 8
Roughly same results as above

*Tried java 6
Feels like it is better(but fps are the same)

Me back, I had 500 FPS BEFORE 1.8 came out, then I got 30- Fps and get micro freezes. Then I switch back to 1.7.10 And still has that 1.8 lag bullshit... And the servers lag shit with me having 100/10 network speed... Java 8 update 20 64 bit and JDK 64 bit. Intel Core i7 4770k, GTX 770 and 16GB Ram 2133Mhz... At my computer sucks? Or the game that got 250% slower?

@Daniel Chehade
Nope. Yep.

@Daniel 4770k bother! Welcome to a world where bf4 give a higher average fps than minecraft!

@Alex_McNeil So true . From now on I will hate Haswell cpu's...
@Christopher_Andthatsit Huh??

Can confirm that Java 7 makes me get micro-freezes 24/7 but more FPS.

Nice! Now I get 700-800 Fps in 1.8 with lowest on and render distance on 6 but I still get those Micro Freezes... I think the mojang team was drunk when they coded this...
EDIT: Now I see... When I turn everything to max except for the render distance (still at 6) I get almost same fps...The render distance, there's 1.8's problem! Wrong coded or something I think!
EDIT 2: Lol, can play 1.8 now! All you have to do is have everything at whatever you want but render distance at 5 or under (Then I get little to very little micro freezes). Other settings doesn't matter! Only render distance that's ducked up!

@Daniel Chehade
"At my computer sucks?" - nope.
"Or the game that got 250% slower?" - yep. 🙂
"The render distance, there's 1.8's problem! Wrong coded or something I think!" - that's exactly what I think. Best option for Mojang would be downgrade to 1.7.10 and track down exactly what they were adding. Since the problem occured after they were fumbling with graphical settings, VBOs and several other things connected with displaying things I think they should faithfully see through their code at first place.
Strangely enough, reports on this bug appeared after the first snapshot, so people were having this problem from the very beginning and Mojang did nothing to repair it?

@Christopher_Andthatsit Oh, now I understand. But I spelled wrong with the "at my" part. I think I mean't "that my" =3
And for the 3:rd part (render distance theory). Yes, that would be an excellent idea. But Mojang doesn't give a duck about bugs like these... I think VBOs was successful but something is interfering WITH the VBOs feature! That's my theory!

Maybe the reason for the lag is ... Water. After testing some things, some guy found out that the game becomes laggy when near water sources, and a waterless world should not lag. You guys should test it out:
MC-71078

For anyone using 32 bit Java, moving to 64 bit Java gives a significant reduction in the FPS drop caused by this problem.

And for others moving to 64 bit does nothing.

I tried Java 7 and 8 and even 9 snapshots, no version have no different effect. I used all the internal settings that came with 1.8 and no noticable difference. Funny how they said this is going to support Multi-core yet Both 1.7.10 and 1.8 only use "40%" of my CPU, I guess 1.8 does not have multi-core support as well. But RAM usage has gone from 600MB-1GB to sometimes MAX out my RAM. There is nothing wrong with my PC as "MANY" games except for minecraft seems to benefit with the optimizations for computers performance. I would like my 150FPS back on 1.8 instead of the 40 and below and constant stuttering (and that's with all the settings turned down).

Specs:
MOBO: ASROCK Z77 PRO3
CPU: i5 3570K @ 4.6Ghz (Stable and not overheating) (Also if this game is CPU intensive, why does it only use 40% and not get what it really needs? Because most games use "more" CPU like than just get stuck at 40% and never use the rest.)
GPU: HD Radeon 7850 @ 1.1Ghz, Memory @ 1500Mhz (Stable and not overheating)
RAM: G.Skill 8GB (2x4GB sticks)
OS: Windows 7 Home Premium (Nothing wrong with it)
HDD: 1TB (Normal, no errors, mostly free from traffic)
PSU: 500W

(Note: underclocking does NOT help)

@Thomas Mobley
Nope and nope.

It's ridiculous how the problem exists for almost 9 months (officially for 2 weeks) and nothing has been done to repair it. I wouldn't say a thing if this was just some minor but the game is unplayable. Is anyone in Mojang aware of what's going on here? Can you at least assure us that the bug is being worked on? Losfer words...

@Christopher Andthatsit of course they don't care! From what I have seen they just tell people to get new computers or update their graphics cards! Funny thing is so many people did do just that in hopes of better minecraft play...but the problem isnt the computer(most of the time) its 1.8!! Like many of you have stated its gotten sooo much worse since 1.7 and we waited almost a full year for 1.8 youd think they would get this right at least!! @Caio Pasqualon let's hope its not water! Being that the whole big thing for 1.8 is a WATER monument! But I fear you are right because whenever I try to walk through the water temples I cannot even play its that bad. And jungle...forget it. I literally cannot even move! It took me a half hour to get 10 blocks! I can handle lag but this is just unplayable and after waiting almost a year for a game I love I am really sad. Please someone at Mojang fix this or at very least could you update us to what steps are being taken to fix this, if any at all. Thank you!

@unknown, please keep in mind that this is not a discussion forum. Comments posted here are supposed to be informative and/or impartial.

I have 50 FPS and the game drops them to 20FPS if I start moving in the latest version (1.8). I think there is a problem withe the GTX 680, because a good friend of mine has something around 300 FPS with his GTX 660.
I 'm using a MacPro and I'm working with iOS X 10.9.4, he is using Windows, but I don't think that's the problem here.

Im using OSX 10.9.4 with 16 GB ram 2.6 GHZ i7, GeForce GT 650M. Ridiculous drop in framerate, sometimes almost unplayable. Game also freezes every 10 minutes about half a second. This is a major issue.

Updating to Java 8 (x64) helped a lot for me. When I had been using Java 7, the framerate dropped to single digits when I sailed on the ocean. Now it is mostly above 50 fps.

Ok. Upgrading to 1.8 didnt help although memory use is slightly less.
Linux mint 17 java 1.8.0_20 32 bit
Display 1920x1080 geforce 7500le
Single core pentium 4 @ 3ghz

I did notice something that id like others to confirm.

When walking forward(w) i get 8-10 fps
When strafing(a or d) i get 30 fps or higher.

Anyone else noticing this?

*edit* this was in a cave. Although on plains i also got a boost albeit a bit less

Mods, have any of the Dev team commented on this issue yet? Is it being looked at? Any update would be good.

I have same issue.
Windows 8.1 Pro 64 Bits
Intel Core i7 3770k overcloacked to 4.8 Ghz
16 GB DDR3 1600 MHz Corsair Vengeance
GeForce GTX780 928MHZ 3GB 6.0GHZ GDDR5 PCI-E 3.0

Java 8 help but it is not enough for me.
The game spike all the time...

I have done some testing regarding this, and I have found something strange.
I have done a lot of optimizations to make things run smoother, and I have in some way succeeded (gotten up to really high FPS in some situations), but it have also gotten worse at the same time (Lower FPS where it was low before).
Right now I have gotten to a point where if I dig a hole in the ground and cover all sides of me, I can get 150FPS when I look in one direction. If I turn around 180° and look in the other direction I get 6FPS.
(Note that this is not caused by any corrupt chunks or anything like that.)

I have noticed that the problem occurs when my graphics card have more resources available than the CPU.
Lots of chunk updates = CPU gets saturated (even if I am only running client) and if my GPU is not stressed enough, it needs to wait for my CPU before going on = Massive problems for some reason.

The result of this is that the lower I have settings that only affects the GPU, the worse the low side of the FPS becomes (The higher end of course becomes even higher like 150+FPS)

A question I have is if it is possible to in some way limit the client side chunk updates happening so that I wont get this problem?

I mean is there any point to have 100+ chunk updates on the client and around 6 FPS?

Turning Vsync off solved all graphics freezes problems we had. Massive RAM increase, rendering depth etc made no difference. This was introduced "recently", within the last couple of months or so. (did not play for a while) (found tip in MC-45275)

Maybe I'm not the best to comment on this issue, but I'm still getting lag while placing blocks, I downloaded the Java software, installed it, and turned off V-sync. Dear Minecraft developers: This is a real issue, and it isn't just fps going down.it is like a mini freeze every time I place a bedrock block up high. Please forgive me, but I really want to see if this is more of a game issue. I don't have any issues playing any other games, and maybe that isn't an excuse, but I really want to just develop a world without completely dropping Fps. Thank you for helping me.

I am having the feeling that issue is related to (one of) the following issues:
MC-68080, MC-71304, MC-71078, MC-45458
If I am correct with this pattern I'm seeing, these issues can all be fixed.

Disclaimer: I could of course be totally wrong about this, please don't whine about it if I am

Found the issue!! By my experience, it's not the water nor the lightning. It's the chunk renderer/updater. Noticed if I dig down 1 or 2 blocks and look down the chunk updates goes from 600 to 1 and by then I got 750 Fps. So somethings wrong with the chunk rendering. I beg of Mojang/Microsoft to have a look at this please... Well, I could be wrong but still, a chunk renderer that updates 500-800 chunks is plausible... And the same goes for the chunk updater itself.
EDIT: Here's a video if you still don't get it: http://youtu.be/XKt-p4RwlpY

@unknown, please repeat your tests in vanilla Minecraft and see if your results persist.

New here. I was frustrated with the 1.8 update because there was so much lag and freeze on game load, so i just gave it several weeks & figured a fix would be put in. Now i see that the problem is for some not everyone, and its still being examined to find the cause of problem.
I am getting 'jerky' movements like the game wasnt keeping up with the walking or turning, it would stop mid-motion for 1 or 3 seconds then resume. I was also getting the same 1-3 second delays in the menu screens when trying to change the video settings, change the skin customization setting, etc. Also when I exit the game and come back later it wont reload the world, its stuck at 'Loading World - Building Terrain' and waiting 5 minutes it was still frozen at that point, although on 1 try it did load the world and I was floating in the clouds, no land chunks got loaded.

I tried the several fix methods suggested:
Reduced the video settings from Fancy to Fast, reduced render distance to 4, reduced framerate to 80. no change, still serious lag.
Looked for update for video driver, AMD Radeon HD 6800. no change
Downloaded new Java update, jre-8u20-windows-x64. no change
Looked at the folder called ResourcePacks, it was already empty, I didnt change anything there.
Running Minecraft 1.8 / vanilla

• I do also have the mod TerraFirmaCraft and Forge installed, but i'm just launching the vanilla version now.

vsync. i dont know what this technical word means, but it would seem that changing that to OFF does help significantly. I can create a new world with Fancy graphics and normal render distance 14 and framerate 120, without the lag problem. However I am still having trouble after I exit and come back later to play again the world is not loading.

error messages file to go with my comment

@unknown
Your world file was destroyed by mods.
The lag in your case comes from the game logging about some weird stuff caused by mods:

[08:02:32] [Server thread/WARN]: Skipping BlockEntity with id ore
[08:02:32] [Server thread/WARN]: Skipping BlockEntity with id ore
[08:02:32] [Server thread/WARN]: Skipping BlockEntity with id ore
[08:02:32] [Server thread/WARN]: Skipping BlockEntity with id seaweed
[08:02:32] [Server thread/WARN]: Skipping BlockEntity with id seaweed

@unknown That IS the vanilla Minecraft... If you look at the icon on the taskbar you see the minecraft icon... and it SAYS 1.8...

@unknown, no it is not. Your F3 menu says (TMI/vanilla), indicating that you are using TooManyItems. If you were using 100% vanilla Minecraft, it would say (1.8/vanilla). Also, exiting your "Video Settings" menu takes you straight back to the game, which isn't vanilla behaviour either.

I'm not sure about this guy's pictures, but I've been playing IN VANILLA MINECRAFT because I literally can't download mods! This isn't a mod thing. It is a MINECRAFT issue! We can all garentee that.

Just thought I'd jump back in and reassure the frustrated and angry that Mojong IS working on it. I have noticed things getting somewhat worse and somewhat better from time to time, and now it's working great - on MY system. Performance tweaks vary in effectiveness depending on a lot of things about your own computer setup - which is NOT the same as saying your computer is terrible, it's saying different brands of processors and different OS settings all work out to a different environment for the game to run in, and optimizing the game for ALL systems is a pretty huge task. They really do seem to be working on it.

This forever stands as a testament to the laziness of some of the mods here:

I made a COMPLETELY unrelated bug report about redstone signals slowing down, and a mod saw "redstone lag" in the title, and didn't even read it, but resolved it as a duplicate of this.

Also, I don't use Java 8 because it doesn't allow me to do modded 1.7.10.

@unknownYeah, sure, your right (and I forgot about it...). But your going overboard, do you really think TMI makes me lag?? And TMI doesn't make ANY DIFFERENCE WITH AN I7 4770K AND AN GTX770!!! USE your head... You got it for a reason.... Just saying, everybody here is saying the same issue, lag... So if I use TMI and still report lag don't you think it's the same as everybody else?? And I've already tested without it...

@unknown, it is not my opinion that TMI makes you lag and neither is it my opinion that it makes any difference. I am pointing you to this bug tracker's conditions, and they clearly state that any modded environment invalidates whatever you tested/did/reported. I know that everybody here has the same issue, but Mojang cannot fix lag caused by mods, and even if those mods shouldn't add lag, there could be (a) bug(s) in those mods that cause lag.
On another subject: please try to keep this chat as civil as possible and prevent phrases that can be seen as insults.

So, I tried to play underwater at one of the fortresses. I couldn't move because of the extreme lag. Why is this not fixed yet??
Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.140303-2144)
Language: English (Regional Setting: English)
System Manufacturer: Dell Inc.
System Model: Studio 1749
BIOS: Ver 1.00 A08
Processor: Intel(R) Core(TM) i5 CPU M 520 @ 2.40GHz (4 CPUs), ~2.4GHz
Memory: 8192MB RAM
Available OS Memory: 8052MB RAM
Page File: 6437MB used, 9666MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: 96 DPI (100 percent)
System DPI Setting: 120 DPI (125 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7601.17514 32bit Unicode

------------
DxDiag Notes
------------
Display Tab 1: No problems found.
Display Tab 2: No problems found.
Sound Tab 1: No problems found.
Sound Tab 2: No problems found.
Input Tab: No problems found.
Display Devices
---------------
Card name: AMD Mobility Radeon HD 5000 Series
Manufacturer: Advanced Micro Devices, Inc.
Chip type: AMD Radeon Graphics Processor (0x68C1)
DAC type: Internal DAC(400MHz)
Device Key: Enum\PCI\VEN_1002&DEV_68C1&SUBSYS_041B1028&REV_00
Display Memory: 4095 MB
Dedicated Memory: 1013 MB
Shared Memory: 3082 MB
Current Mode: 1920 x 1080 (32 bit) (60Hz)
Monitor Name: Generic PnP Monitor
Monitor Model: unknown
Monitor Id: AUO149D
Native Mode: 1920 x 1080(p) (60.008Hz)

Just tested if 1.8.1 PR-1 fixes this bug. It doesn't.
Still needs a fix.

General Notice: Yes, we know that OptiFine is out. You don't need to spam it into this thread.

@Galaxy_2Alex @Kumasasa Apologies.
When I made my first post in relation to 1.8.1 PR2 / optifine fix, I was making it for players who had this problem who wanted to fix it before the actual bug was fixed itself. When it first got deleted, I thought that some sort of error occurred causing the post to be deleted (Mainly since there was no warning or alert from a moderator at that time, so I didn't think of a moderator removing it), so I reposted.
I also posted it on both MC-45458 & MC-71078 since both bugs had primary relation to the error (45458 in the broader aspect, and 71078 as the specific reason), in case one player viewed one bug and not the other. I didn't mean for this to be a sort of spam, I was only doing this to try to help other players in case they wanted an immediate fix for the bug that is currently available.
Also, @Kumasasa, in relation to the statement of 'essential to this bug', my repost did add an explanation to why the 71078 bug was happening (via what sp614x said), but I would gather you were already annoyed that I reposted in the first place.

Also, if this isn't the location of where to talk, could you redirect me to the PMs of Jira? Thanks.

Also, if this isn't the location of where to talk, could you redirect me to the PMs of Jira? Thanks.

JIRA has no PM, because this is not a place to discuss at all. Any discussions should be moved to Reddit (http://www.reddit.com/r/Mojira/) or the Minecraft forums.

My fps went from a steady 50fps to 7 fps. Even in previous versions of minecraft now, like 1.7 and 1.5.2 Tekkit modpacks. Thanks 1.8...

I am just going to put this here: http://redd.it/2js5j3.
(The OptiFine creator explains why Minecraft 1.8 can be laggy)

I have been constantly having low fps (2-7) with a new world. However today when I ventured off with a boat the fps rose up 97 sometimes (60-80 average). It seems loading new chunks, rather than staying in old boosts the performance. Has anyone else noticed this?

Edit:
Also during the previous low fps I could bearly rotate my view.

I am actually able to maintain a constant 60 FPS with the 1.8 rendering system, but moving decreases the joy to a constant fluctuation of 20-40 FPS. This wasn't a problem when first playing 1.8 + its snapshots, but over time, it occurred more and got worse every time...

Mine got better a while ago, but when I'm exploring new territory it gets worse, to the point where I was running into blocks that hadn't rendered yet a couple of times. I wish I'd taken a screenshot, but I was so annoyed that I just shut off the computer. There were small holes where you could see through to the underground, and even a place where you could see a house that must have been a reused image from where I'd just come from because there was not a village in the middle of the roofed forest. I checked afterwards.

Same issue here. I have an 8 core Intel I7 and use a nVidia Geforce GTX Titan, one of the most powerful consumer graphics card and have about 20-30 FPS. When looking straight down I get 400-700 FPS

i7 with GTX 970 and 33 FPS https://twitter.com/CyoorMC/status/525715574517952512

There are a lot of thigs to try and a lot of variable. Are you on SMP or SSP first. SSP has a lower native frame rate because your CPU is handling chunks instead of the server doing it. Second to check is how far out you are rendering chunks. Set it to 8, make sure vsync is OFF and check it then.
My lowly quad core 1.8 Ghz /gefocre 9600GT will do 200+ FPS set to 8 chunks, but struggles past 40 at 32. And that is with everything else set to high using java8 64bit and allocating 4GB RAM

I don't know why but it's like 1.8 has fudged-up my CPU. Before 1.8 came out I played with like 500+ FPS, now in 1.8 I got like 70-90 with 16 chunks. Then I played alpha, beta and pre-alpha version and I "low" fps there as well! Here's all versions average FPS (for me): Dev-version: 290 Pre-alpha: 210 Alpha: 160 Beta: 120 Release (1.4-1.7.10): 90. And I'm not exaggerating... Just me using a beast... Well, it WAS a beast until 1.8 destroyed it...
When I played for example pre-alpha before I would get a average FPS of 3000 and on Dev versions I would get like 4800!!! Thanks alot, Mojang!!
What I am trying to say: It's like 1.8 has "degraded" and "destroyed" my CPU...

Specs:
CPU: i7 4770k OC (4.3Ghz - I've tested on stock speed too, slower...)
GPU: MSI GTX 770
RAM: Corsair Vengeance 16GB 2133Mhz Quad Channel
SSD: Samsung 256GB Desktop Kit
PSU: Corsair RM 850W Gold 80+ Modular

latest build, 1.8.1 pre5 has killed my single player world. my hardware should be powerful enough.

win7, java 1.8.0_25 64bit
i7 6 core 3.4ghz
gtx680 4gb
32 gb ram [4gb allocated]

LOW frame rates <20fps, usually around 5-10fps. can no longer play in the single player world. world was created in 1.8

I've noticed my server-world (loaded from the same computer) performance gets bad at some specific circumstances with 1.8.1.
Its usually working alright around 120-200 fps in wilderness and around 80-120 fps in a big building complex.
However, close to coloured glass panels and coloured glass blocks my frame rate goes down to 8-15 fps. :-/
And about 30-40 fps close to shallow waters. Some problems with transparent things maybe?

Also, the game have a hard time to load chunks while I moving/flying in 1.8.1. Chunks load really fast when I stand still though. So when flying long distances I have to regularly stop to let the world load before I can go on. Before 1.8.1 I could just go straight forward with no delays. Sweet days...

I have tried to lower the graphic performance settings. It doesn't affect this problem at all for me. Loading 2 chunks or 16 chunks doesn't matter. Coloured glass and water still affects the performance.

Note, in ver 1.8 the frame rate worked fine for me. This issue is new for me in 1.8.1 only.

I have: Win7, Java 64 bit ver. 1.8.0_25

(I pre-apologize for any language flaws. I'm Swedish.)

Like Erik said, the source of lags: stained glass!

This may or may not be of some help.

https://www.youtube.com/watch?v=BWNHvPETU9w&list=UUU9pX8hKcrx06XfOB-VQLdw

Entertaining video, but I believe no item or block causes it. At least, from my end (ATI A10 QuadCore @ 2.5, 6 Gb RAM, AMD Radeon HD 8650G) normally I would have 50-60 FPS in Minecraft, but ever since 1.8 introduced something, I only get those frames standing still and not looking around. While looking, they fluctuate quite a bit and while moving... they drop to 10-30 and continue to fluctuate (on render distance 4 Chunks, btw). I haven't even noticed anything positive from the 1.8.1 update.

I can play at 60 fps but get frequent drops. It drops to 50 but it's like my screen is stuttering. Turning down settings barely impacts performance.
I believe my current hardware is quite adequate to play Minecraft. I have a GeForce 970 and an Intel i5 3570k overclocked to 4.5 GHz (water cooled).
I have 16 Gigs of ram and about 6 G dedicated to Minecraft. Java 8 64 bit is the only Java installed.

I have also noticed that my Game Output after closing Minecraft gives me this message:
Java HotSpot(TM) 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release

However I do not know if this is related.

I'm currently running the Jar version of Minecraft because it's the only way I can play without the Razer Synapse Bug.

I do not know if this correlates, but I recently noticed a significant decrease in this odd lag. Within my Control Panel (I use Windows 8.1) I enabled all of the Java Binaries (They are named something very similar) and downloaded 1.8.2-pre2 (I tried it just to see what that single bug was... it was an animal killer, lol). This is just a suggestion and I have no idea if this will work or not, all I do know is, I did nothing else to Minecraft other than this. It has been a few months since my last Minecraft session, hopefully it continues to work!

EDIT: By Java Binaries, I refer to the ones that are in the Firewall settings. For me, one was disabled. I know for sure, by enabling this, my Minecraft startup increased phenomenally.

Hi guys, if anyone is still having issues with the weird fps drops and such, whether you believe if it has something to do with stained glass or water, signs, what have you; I wasn't aware that a new launcher was available on Minecraft.net. Launcher 1.6.5. Before I installed it, I was playing the 1.8.2 pre 4 snapshot on the 1.5.3 launcher and I was experiencing drastic fps drops after some time of playing the game and I kept getting Microsoft Visual C++ runtime errors, that never crashed the game though but it was bizarre. When I played in the new launcher however, it has been much much better. I haven't experienced it as far as I am aware of; being that it may not be as noticeable as before.I hope that I helped with this tidbit of information.

I have an Acer laptop 6GB RAM but use 2GB for the game. All video options such as vbo's and alt blocks and such are off, since I don't use them. but fancy is on and the render is a 7. Intel Core i5.

Yes, I still have this issues. Thank you for the advice! I wasn't aware of this newest launcher. I'll try it out right now and see if it Changes anything. 🙂

I just remember I hasn't tried out the latest Pre1.8.2 in my Snapshot server. It works fine without the new launcher... 🙂
Something broken must have been fixed.

@Tiya, where do you find the Launcher to download? Minecraft Wiki says that 1.5.3 is the most recent, and all I can find on the Minecraft site is who to download the whole game.

Jaqi, here.

@Jaqi, Did the link that Sonic show you help, I wasn't aware of that article lol XP You have to download the whole game again to get the new launcher 🙂 make sure you backup your .minecraft folder, (that reason why I did cause I wasn't sure if it was going to change anything in there. I don't think it did because all my saves and text packs are still present and accounted for)

Go to minecraft.net {i have windows 8 so I downloaded the minecraft.exe under there. Place the EXE in a folder on the desktop or where have you, then run it. It will say things like downloading and installing runtime blah blah XD Let it do it's thing then it will open and you can enjoy your game! It might not work for your problem though, i hope it does, I know what it's like to not be able to find the right answers. Good Luck!!

Also @Erik, I'm not familiar with the server.exe but if I am misunderstanding what you mean by that I apologize lol. I am referring to the single player exe. It is possible that you can delete the respective snapshot version from your .minecraft folder and simply play minecraft again and it will download the fresh one after you run the new launcher exe.. I didn't have to do this though, not sure if that could help at all.

@all, the new Launcher 1.6.5 (new for Windows only ATM) for Minecraft can be downloaded here https://minecraft.net/download
_{Obvisous download site is obvious...}

I got the new launcher now. It improved the game performance a lot. However, with or without the new launcher my framerate and loading while traveling problems I have suffered from a long time now is all gone with the new 1.8.2-pre4, for both home servers and single player local play. 🙂

So the future looks bright. I still wait for the official update for 1.8.2 though. I don't wanna risk anything with my main server world.

The link did get me the new launcher, and my game worked well at first, but developed lag as I traveled. Not as badly as some worlds I've spawned in, but bad enough.

I've noticed that extreme hills and ocean monuments seem to induce severe lag.

@Erik and @Jaqi

I am glad it's working better for you now Erik! and Jaqi I am sorry that it still isn't working well for you if I may make a suggestion? I don't know the extent of your problem but:

I have my JV checked on my profile and I changed Xmx value to 2G and I kept the Xmn the same as the default. I noticed that when I made the Xmn 2G too, that minecraft lagged SEVERELY and nearly crashed. I am guessing that allowing Minecraft to go from max and min memory actually helps it to run because forcing the game to allocate the same amount of memory for a long time will exhaust the runtime... Forgive my ignorance in this area if this isn't even close to what might be happening. All I know is that there was a SERVERE lag when I changed the min to 2G; it was something that I found was suggested in the web. I suppose giving it less Xmn is worth a try.

I have been using 1.8.2 pre-4 and my issues seem to be resolved. It's not listed on the changelog as something that was fixed, but this build is running way better than any others I've tried. Was there anything in pre-4 that was supposed to fix this?

I updated to java 8, that did not fix it alone. but then shutting off Vsync after doing so appears to have done the trick!

I can confirm that it still happens in 1.8.3.
Specs:
Processor Intel(R) Pentium(R) D CPU 2.80GHz
Manufacturer Intel
Speed 2.8 GHz
Number of Cores 2
CPU ID BFEBFBFF00000F44
Family 0F
Model 04
Stepping 4
Revision 06
Video Card NVIDIA GeForce GT 630
Manufacturer NVIDIA
Chipset GeForce GT 630
Dedicated Memory 2.1 GB
Total Memory 2.0 GB
Pixel Shader Version 5.0
Vertex Shader Version 5.0
Hardware T & L Yes
Vendor ID 10DE
Device ID 0F00
Plug and Play ID VEN_10DE&DEV_0F00&SUBSYS_0F00196E&REV_A1
Driver Version 6.14.13.2101
Memory 3.1 GB
Operating System Microsoft Windows XP Professional Service Pack 3 (build 2600)
Service Pack 3
Size 32 Bit
Edition
Version 5.1.2600
Locale 0409
BIOS Phoenix ROM BIOS PLUS Version 1.10 A00
Version A00
Manufacturer Dell Inc.
Date 09/01/05
Display Maximum Resolution 1152 x 864
Drive 1
Size 1.8 TB
Free 1.7 TB
Drive 2
Size 228.1 GB
Free 52.8 GB
Software
Java 7.0.710
Flash 16.0.0.305
DirectX 9.0c
.NET 3.5.30729.01
QuickTime 7.75.80.95
Adobe PDF Reader 11.0.8.4

Chat log (Ignore some chat messages, tested on hypixel):
[18:41:29] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup.culling' took aprox 102.360549 ms
[18:41:29] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup' took aprox 103.21959 ms
[18:41:29] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level' took aprox 122.751483 ms
[18:41:29] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer' took aprox 126.790567 ms
[18:41:29] [Client thread/WARN]: Something's taking too long! 'root' took aprox 143.544655 ms
[18:41:29] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup.culling' took aprox 140.385453 ms
[18:41:29] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup' took aprox 140.839472 ms
[18:41:29] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level' took aprox 163.393551 ms
[18:41:29] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer' took aprox 167.784042 ms
[18:41:29] [Client thread/WARN]: Something's taking too long! 'root' took aprox 179.575055 ms
[18:41:29] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup.culling' took aprox 100.28038 ms
[18:41:29] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup' took aprox 100.726976 ms
[18:41:29] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level' took aprox 120.427127 ms
[18:41:29] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer' took aprox 126.587627 ms
[18:41:29] [Client thread/WARN]: Something's taking too long! 'root' took aprox 148.629544 ms
[18:41:29] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup.culling' took aprox 128.020609 ms
[18:41:29] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup' took aprox 128.712763 ms
[18:41:29] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level' took aprox 148.664144 ms
[18:41:29] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer' took aprox 153.255406 ms
[18:41:29] [Client thread/WARN]: Something's taking too long! 'root' took aprox 173.788455 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup.culling' took aprox 123.297023 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup' took aprox 123.793002 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level' took aprox 144.406926 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer' took aprox 154.433177 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root' took aprox 184.300041 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup.culling' took aprox 141.188189 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup' took aprox 141.629857 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level' took aprox 162.028069 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer' took aprox 166.252363 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root' took aprox 180.186702 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup.culling' took aprox 101.175139 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup' took aprox 101.997592 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level' took aprox 123.618613 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer' took aprox 128.581032 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root' took aprox 138.630453 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup.culling' took aprox 102.088253 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup' took aprox 102.941181 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level' took aprox 123.804956 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer' took aprox 128.214972 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root' took aprox 137.298094 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup.culling' took aprox 137.978771 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup' took aprox 138.411537 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level' took aprox 158.849804 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer' took aprox 164.568995 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root' took aprox 195.552478 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup.culling' took aprox 117.68057 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup' took aprox 118.124767 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level' took aprox 139.642835 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer' took aprox 145.107964 ms
[18:41:30] [Client thread/WARN]: Something's taking too long! 'root' took aprox 159.985345 ms
[18:41:31] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level' took aprox 116.733057 ms
[18:41:31] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer' took aprox 120.601841 ms
[18:41:31] [Client thread/WARN]: Something's taking too long! 'root' took aprox 139.168166 ms
[18:41:31] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup.culling' took aprox 122.556499 ms
[18:41:31] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup' took aprox 122.983671 ms
[18:41:31] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level' took aprox 139.403552 ms
[18:41:31] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer' took aprox 143.940086 ms
[18:41:31] [Client thread/WARN]: Something's taking too long! 'root' took aprox 156.22338 ms
[18:41:31] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup.culling' took aprox 126.872564 ms
[18:41:31] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup' took aprox 127.302541 ms
[18:41:31] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level' took aprox 143.648039 ms
[18:41:31] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer' took aprox 147.816696 ms
[18:41:31] [Client thread/WARN]: Something's taking too long! 'root' took aprox 160.254636 ms
[18:41:31] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup.culling' took aprox 127.35519 ms
[18:41:31] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup' took aprox 127.781783 ms
[18:41:31] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level' took aprox 145.38225 ms
[18:41:31] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer' took aprox 155.901961 ms
[18:41:31] [Client thread/WARN]: Something's taking too long! 'root' took aprox 168.168316 ms
[18:41:32] [Client thread/WARN]: Something's taking too long! 'root' took aprox 101.417317 ms
[18:41:32] [Client thread/WARN]: Something's taking too long! 'root' took aprox 105.501225 ms
[18:41:32] [Client thread/WARN]: Something's taking too long! 'root' took aprox 104.81886 ms
[18:41:32] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup.culling' took aprox 101.21018 ms
[18:41:32] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup' took aprox 101.747233 ms
[18:41:32] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level' took aprox 122.35059 ms
[18:41:32] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer' took aprox 126.401747 ms
[18:41:32] [Client thread/WARN]: Something's taking too long! 'root' took aprox 156.577776 ms
[18:41:32] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup.culling' took aprox 103.059487 ms
[18:41:32] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup' took aprox 103.485689 ms
[18:41:32] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level' took aprox 118.738495 ms
[18:41:32] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer' took aprox 123.119147 ms
[18:41:32] [Client thread/WARN]: Something's taking too long! 'root' took aprox 133.405759 ms
[18:41:32] [Client thread/WARN]: Something's taking too long! 'root' took aprox 107.496093 ms

Now this only triggered when either A. moving near water or B. loading new chunks or unloading old chunks. And I also moved my mouse in a circular motion while doing this, and that also dramatically decreased the FPS down to ~9.
And yes it happens every second while moving.

I have no idea if this even correlates, but I reactivated my harddrive's page file... and the immense walk lag has disappeared. Of course, if I use creative to fly across a large chunk of the world, that will still impact me, but I can walk and look around again. I'm actually eager to play Minecraft; its been a while. I hope this helps you all, I'm certain it helped me.

As above commenter, not sure of the gettable mileage, but 1.8 drove me insane with the stuttering. 1.7.10 was a fallback but now all the servers are 1.8. Damn! I purged all java, and wiped every trace of minecraft, before reinstalling just minecraft 1.8.4. It started up with default settings and worked great! No more freezes. I changed some defaults and the dreaded constant freezing returned! Trial and error pinpointed my issue to FullScreen.

Options->Video Settings->Fullscreen must be ON(it is on by default), or the game is unplayable. idk why, but there it is...

Since I updated to 1.8.4 all my performance issues were gone. I first thought, it was because I started using the new minecraft launcher with the integrated java runtime, but further inspections showed, that it was the 1.8.4 update itself, which fixed it. To verify this, I downloaded the jar launcher, and launched minecraft with my default jre, and performance was similar good to the test with the integrated jre.

It feels strange, that my laptop was not able to handle all 1.8.* versions, but is able to handle 1.8.4 perfectly at nearly constant 60fps.

Resolving this as invalid since not a bug in Minecraft but a secondary issue due to changed graphics routines / more RAM usage.

Still a bug though, doesn't matter if it's secondary.

It is a bug, or a terrible programing decisions. Updates are meant improve things, not game the game unplayable for some people.

@[Mod] Kumasasa
This is definitifly not an issue due low RAM (as I play on 8 and 16GB Machines and still get the lags). It probably IS a badly changed graphics routine and therefor a bug that makes the game unplayable on some machines for some users THAT PURCHASED THE GAME!!!
So no reason to close this...!