1.16 Update causing high CPU usage on PC

For a myriad of reasons, I've been playing Bedrock Edition almost exclusively on 1.14.1. This is one of said reasons. 1.14 runs effortlessly on my relatively low end laptop, but as soon as I open any version of 1.16, especially 1.16.2, CPU usage spikes into the high 90s and my fan sounds like a helicopter. This is one of the things pushing me personally away from this version of the game. Would love to see this worked on.

I'm idling at c29% what kind of specs are you talking about on your system.  RAM, cpu cores, gpu (integrated?) avg 26% in the menus

i have 8GB Ram, quad core (AMD), integrated dual GPU (ancient)

I went into detail with what my specs are and compared it to a previous version. I do not at all think this is an issue with my computer given by the fact that I showed 1.14.1 runs just fine for me.

I have been having the exact same problem, I though it had to do with the resource pack am was using, but it was working fine in pervious versions, and even without it on I am still having upwards of 70% CPU usage with 80 chunk render distance.

even the simple thing of moving caused a lag spike for me.

my specs for reference

• AMD Ryzen 7 3700X 8-Core Processor

• 32 GB ram

• Nvidia GeForce RTX 2070

I was about to say considering the render distance, 70% is not all that bad. But then I remembered that the L3 cache on a 3800x is 32mb. Still seems pretty high.

the amount of cache my cpu uses fluctuates quite substantially between beta releases due to the developers tweaking the render dragon

I was able to run with relatively little memory up to 1.16.100, but after the update of 1.16.200, the operation of Minecraft for Windows 10 became very unstable due to a large increase in memory consumption, which caused a big hindrance to play Bringing. As for the specifications, the CPU is Intel Core i3 2.40Ghz, the memory is 4GB RAM, and the GPU is Intel Graphic 620, so the minimum requirements are met. The current version consumes more than 1000MB of memory just for booting , and even more problematic is that the built-in memory usage is always over 95% even when there are no apps running in the background. In the previous 1.16.100, the total amount of internal memory used was about 2.7 to 3.0GB even Under the same conditions. More fatal is that it consumes more memory to process packets when multiplayer is turned on, which causes chronic resource shortages with minimum requirements and frequent system errors. This means that the Render Dragon engine deployment will not work with t He minimum requirements indicated in the store. Low spec Windows 10 that doesn't support RTX ray tracing shouldn't use this engine. This issue means that usrs are in high demand to provide hotfixes to non-RTX users right now.

Is this still an issue for anyone in the latest Beta version 1.16.210.51?

Checked for the update release of 1.16.201 today
Immediately after applying the patch and launching the app
The performance that was exhibited at 1.16.100 has been improved!

I'm really grateful for this fix.
The memory consumed for rendering the menu screen
From 1.16.200 over 1000MB to now up to
It is considerably lighter, about 400MB.

This issue is on Windows 10 devices 1.16.200
Fatal, but 1.16.201 performance of 1.16.100
Has improved at least three times.

I think it was worth giving this kind of feedback.

I'm currently on the 1.16.201 version of Minecraft on Windows 10 and still experiencing some pretty bad CPU usage numbers. It's averaging between 60-80% when idle in game, not loading chunks. Aside from my computer getting really hot when just playing the game, adding streaming content to Twitch into the mix makes the video extremely choppy because Minecraft is hogging all of the CPU resources.

Specs.

Dell G3 15 Gaming Laptop

Core i5 8th Gen

GTX1050 GPU

16 GB RAM

M.2 System Drive, SSD Storage Drive

Here is an update of the current status for me on my PC.

I have a video recording of what was happening while i was in game, but it is to large to upload here so what would be the best way to show it and would it be helpful?

On 64 chunk render distance when loading into the world
Jumped from ~13% on loading screen to ~80%+ immediately after loading into a world, then got up to 100% for around 10 seconds. (1:38-1:48 in recording)
Stayed at 70%+ range for around 30 sec in game where it then would stay in-between 40%~75%
dropped down to 10%~20% in the neather
spiked up to 90% again when leaving the neather
stayed above 70% for around 30 sec again, then stayed in-between 40%~70%

set render distance to 48 chunks
went back into the neather, stayed around 10%~20% again
back to the overworld jumped back up to 90%+ for about 10 sec this time then dropped down to 70%~80% when flying around
hovered around 20%~50% when moving in smaller chunks

set render distance to 32
dropped to ~15%-40%
when moving it was higher
neather again, still low
back to overworld, back up to 90% for around 3 sec, then hovered between 15%-40% when moving.

additional info if needed

Computer specs
CPU- AMD Ryzen 7 3700X 8-core 16-thread unlocked
Ram- 32 GB (4x8GB) corsair 3200MHz
SSD- Samsung 860 EVO 250GB
GPU- NVIDIA GeForce RTX 2070

World info
Size- 74.6 MB
Simulation distance- 6 chunks
no cheats active
show Auto save- on
outline selection- on
In-game player names- on
View Bobbing- on
Camera Shake- on
Fancy leaves- on
Fancy bubbles -on
render clouds- on
beautiful skies- on
smooth lighting- on
fancy graphics- on
Fov can be altered- on
UI- classic
GUI scale- 0
Upscaling- off
Ray tracing- off
render distance- 64/48/32
Anti Aliasing- 8
No resource pack(s) or behavior pack(s) were turned on/active.

It looks like all rendering is being done by the CPU and not the GPU.  In Beta 1.16.210.55 the initial world generation bumps the CPU up to ~95%.  However, after the initial generation it drops down to about 45-60%.  This is better than what it was in 1.16.201.  In that version the CPU was always bumping 90%. 

World creation:

World exploration:

100% CPU usage. Windows ten 1.16.201.

I'm facing the opposite: All rendering is being done by the GPU, none by the CPU. 

It seems that render dragon abandoned the distribution of rendering between CPU and GPU and just went "if your GPU can do it, it will, and if your GPU can't, then your CPU will", but those metrics are useless because some GPUs are good but not that good, and no CPUs are even close to that good.

I can confirm what Avg Zing said. Since I installed the latest hotfix, my GPU is constantly at 100% (but only 3D, not Vram or anything else) while playing Minecraft and the fps are unplayable low. Perhaps I'll get the chance to install a Radeon card instead of my GeForce 750 Ti, to check whether it helps or not. I might be wrong but until now, I only read of users with Nvidia cards facing these issues. 

I also use 750 ti but i have 100% cpu usage when moving and I was able to set 32 chunks before 1.16 but now just 16

Performance lag is double in 1.16.210 compared to 1.16.220.51. It looks like the developers are trying to improve the lag, however if there are, their attempts are only being applied to the beta version.

There is a possibility that the performance will improve even more in the later 1.16.220 betas, but we'll have to wait and see.

In large city world I experience 100% CPU usage on just 16 chunks! I've many gaps in sound and picture, during this my GPU is just not more than 35% usage

Kind of both glad and upset that a ticket already exists for this bug lol. I had the duplicate MCPE-122238, and the most recent hotfix that the Microsoft Store updated with began causing this issue just a couple days ago. What's different for me compared to several other users is that unlike other games in my library, Minecraft isn't utilizing my GPU at all.  It must be running on integrated graphics, which could be partially why the CPU usage is so high? (I go into more detail regarding troubleshooting that in the dupe ticket, but to no avail)

I can confirm that this issue still occurs on .210

I have an i7-8700k, 32 gigs of memory at 3200MHz and a 1080ti from aorus.
With vsync turned on, the framerate is absolutely terrible compared to how smoothly things ran in the past, and turning vsync off fixes this for me. (with vsync on it runs way worse than on my phone)

Thanks for showing how to get around this issue for now though, didn't realise it was related to vsync!

I have a mid-tier pc (AMD 5 3600, 16 gigs of ram) and I'm having the same exact issue with mine craft. even with v sync turned off and on the lowest settings, mine craft consumes 30-60% of my CPU usage. hopefully mojang fixes this issue soon because the lag is unbearable.

I am running the latest stable 1.16.221 but its still happening with me. I am having an average laptop but performance has dropped after 1.16 update. Not only my cpu usage but ram usage is also very high.

Render distance:16 chunks

Version: 1.16.221

Specs:

amd ryzen 3500u

8gb of ram

This issue fixes sometimes when you enter the pause menu,then go to other application and then re-open minecraft & play the world.

Ever since Render dragon, Minecraft has been a laggy mess even on high end devices

Specs:

RTX 2060 MSI

Newest Drivers

32GB Ram

144hz display

And even though all that, I get only 35fps but in the older versions that don't have renderdragon I get 144fps.

As of 8-6-21 using the latest version of Bedrock this is still an issue for me as well. Any render distance set above 32 chunks results in high CPU usage and poor performance with temps getting ludicrously high. This problem is present with both experimental features (Caves and Cliffs terrain generation) on and off. When RTX is enabled this problem is absent, I'd assume because the rendering becomes more GPU bound than CPU.

Cooling solution for my CPU is an Arctic Liquid Freezer II 280 CLC with two 140mm static pressure focused Noctua fans, so it's not a cooling issue. Especially when this problem isn't present in other games that are more graphically demanding. TJ Maxx for a 3900x is 95 C, so it's climbing near shutdown.

I've noticed once all the chunks are loaded in the temperature begins to stabilize (as shown below in the attached image with the temp peaking at 92 and dropping to 71). I'm assuming to render the chunks it's just piling them all into a queue for the processor to handle, but there really should be some safeguards in place to prevent this from happening. Prime95 can't even get my CPU up to 92 degrees.

Specs:

RTX 2080ti

32GBs of Ram @ 3000 mhz

Ryzen 9 3900x

Game is installed on an SSD

At 6 chunks and minimum settings my CPU can get up to 100% usage, because I am stuck on the Core 2 Duo E8400. Edit: I also have 4gb ram with GMA 4500 graphics.

Affects 1.17.40.20

It is possible that overclocking may play a part in this issue. Has anyone who has overclocked tried dropping the CPU speed back to stock speed?

This seems to only be happening with RTX off.

Still affects performance in 1.18.10. When playing on Bedrock the CPU is used up to 70 % whereas the GPU only gets about 10 %. When I play on Java the CPU and GPU are balanced and it makes more use of the GPU. But on Bedrock the game seems not use the GPU at all and instead uses the CPU for everything. No wonder that can cause drops in performance especially when having other processes running in the background.

Apparently, people are relating this bug report to the performance degradation of render dragon / recent versions. While it is true that the performance of later versions is absolutely horrendous, I actually do not experience a drastic CPU usage spike while running the render dragon version of the game. I noticed that render dragon seems to use less CPU than versions preceding 1.16.200. Note that I don't mean for this to come off as a good thing; as I said the game performs terribly. Not even my 3060 and 8 core processor can match my display refresh rate on low settings anymore in moderate loads. Ideally I'd love to see Mojang remove all the bloat and terribly slow systems they put in place over the last couple major versions and actually focus on what the community is saying. It has gotten out of hand and at this point, Mojang is only riding off of Minecraft Java's popularity (mainly in 3rd party content) and the legacy that old bedrock (when it was more stable) has created.

It happens to me that since the last update the game uses 100% of my GPU, even with minimum graphics and rendering distance of 5 chunks.
Before updating it I could play perfectly with render distance at 30 and it didn't crash at all.
Honestly Minecraft today is unplayable.
I hope they fix it soon.

Reminder that this is a bug tracker, not a discussion site. Comments that do not add information about the reported bug are subject to removal.

In particular, this report pre-dates render dragon and is distinct from the issue of low FPS with RTX cards, which is tracked at MCPE-111547.

Still, an issue. Affects 1.19.40+

affect 1.19.40+

I have already posted this in another issue but I thought it would be some useful information. Take a look at these interesting screenshots. My hardware is an RTX 3060 GPU and an AMD Ryzen 7 5800H CPU. I'm running on Windows 11 OS (Happens on Windows 10 too). Minecraft bedrock uses way too much of my CPU (around 80%) but it only uses 1-2% of my GPU (hilarious). My ram is also being used more than it should be. The weird part is, is that sometimes it's the opposite, the GPU is used more and the CPU used less. All of this causes terrible latency, fps, render distance availability, etc.

Take note that these tests were run with a render distance of 76 to get the most accurate results.

Yep, It's a issue on my computer too. I reported it on MCPE-163184. My game had very high CPU Usage and it was using the Integrated graphics instead of the dedicated GPU. There was high IGpu Usage as well.