mojira.dev
MC-45458

Framerate drop/lag in 1.8 for some hardware setups

Possible Fixes to reduce the lag:

Turn down the graphical settings or upgrade your Hardware.
Also, for some users, Java 8 fixes the issue: http://www.oracle.com/technetwork/java/javase/downloads/jre8-downloads-2133155.html
Some users have noted improvements when using 64 bit java instead of 32 (when applicable).
You can also try to update any graphic card drivers for your system.
Things have changed, a performance boost is not guaranteed with 1.8.


Compared to 1.7, the framerate is (much) lower in 1.8, including lags while generating the world.

Linked issues

MC-44800 Lag on snapshot 14w02c Resolved MC-45136 Extreme lag @ 407,69,192 on seed 182763672 - Minecraft 14w03b Resolved MC-45231 Lag Resolved MC-45275 Massive Lag Spikes in 14w04a (VSync Issue) Resolved MC-45289 Random Freezing While Playing Resolved

Attachments

Comments 200

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

Mog (Ryan Holtz)

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

Michael McFarlane

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.

190 more comments
Roland Ruckerbauer

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.

Matthew A. Nickerson

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...!

valentin nygern

(Unassigned)

Confirmed

Minecraft 14w04a, Minecraft 14w21b, Minecraft 14w25a, Minecraft 14w25b, Minecraft 14w33c, Minecraft 1.8-pre1, Minecraft 1.8-pre2, Minecraft 1.8-pre3, Minecraft 1.8, Minecraft 1.8.1-pre1

Minecraft 14w04b

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