Moderator Notice
As of snapshot 21w10a, the game renderer has been updated to use newer OpenGL features. For some users, this may result in a loss in performance (FPS) in 1.17 and above. To gauge the impact of this, standard information is requested from affected users. Please follow the instructions below, and leave a comment with the results, as well as details about your system information.
For any discussions about this topic, please do so on the linked reddit thread
Before proceeding, please be sure to update your system's video drivers per these instructions. If you need assistance with this, please visit our community discord server.
If you experience this issue, follow these steps
Download the attached world file
, and extract the world into your saves folder
Open the game in version 1.16.5
Ensure the default amount of RAM is allocated (1GB 32 bit users, 2GB 64 bit users)
Be sure to use the default Java or Java 8 runtime
Use the following standard video settings:
FOV: Normal (70) Fullscreen: ON Fullscreen Resolution: 1280*720@60 Biome Blend: 5x5 (Normal) Graphics: Fancy Render Distance: 12 chunks Smooth Lighting: Maximum Max Framerate: Unlimited VSync: OFF Clouds: Fancy Particles: ALL Mipmap Levels: 4 Entity Distance: 100%
Open the Performance Test world, and wait for the chunks to load (you may need to switch to creative mode and back (press F3+F4 twice)).
If for whatever reason you need to re-create the world, please use the in-game "re-create" option to preserve the seed and game rules
Reset your position:
/execute in minecraft:overworld run tp @s 188.76 98.90 -209.60 179.85 35.10
Change your game mode to spectator:
/gamemode spectator
Open the F3 debug menu, and wait a minute for the FPS to stabilize
Note down your average FPS
Repeat these steps with the latest snapshot
Here, also press F3 + L to generate a profiling report (only applicable in 21w11a and up)
Leave a comment on this report with:
FPS in 1.16.5 FPS in the latest 1.17 release (please specify the release version) Your operating system Your CPU Your Graphics card and driver version, as reported by the game Your profiling zip file
It is also recommended to take a screenshot of the F3 debug menu and attach it to this report, to ensure that the correct GPU is accurately reported (particularly in cases where more than 1 is available)
See here for an example comment.
System information screenshot:
⚠️ Reminder: If you leave a comment, please follow the instructions above and include your approximate FPS averages. This helps with effectively diagnosing this issue.
Linked issues
is duplicated by 46
Attachments
Comments 119


21w08b: 265 FPS
21w10a: 190 FPS
21w11a profiling results:
[media]
OS: Linux (Arch) 64 bit
CPU: AMD Ryzen 1600
GPU: NVIDIA Geforce GTX 1060 3GB 460.56
Old hardware
Without F3:
21w08b: 290 FPS
21w10a: 105 FPS
1.17: 27 FPS
With F3:
21w08b: 245 FPS
21w10a: 85 FPS
1.17: 25 FPS
21w11a profiling results:
[media]1.17 profiling results:
[media]OS: Windows 10 Home
CPU: Intel i5 7300HQ
GPU: NVIDIA GeForce GTX 1050 Ti 461.72
New hardware | Taken on Oct. 9, 2021
Without F3
1.16.5: 650
21w08b: 625
21w10a: 150
21w11a: 110
1.17.1: 135
With F3
1.16.5: 475
21w08b: 470
21w10a: 120
21w11a: 95
1.17.1: 105
Profiling results (Done with F3 menu disabled)
21w11a:
1.17.1:
[media]System info
OS: Windows 10 Home 21H1 build 19043.1237
CPU: Ryzen 7 5800H
GPU: NVIDIA GeForce RTX 3060 Laptop GPU, 6GB VRAM, 130W TDP, Driver version 472.12, Optimus disabled via MUX switch
Note: FPS can also decrease depending on how many chunks are loaded. The longer you look at something the more chunks could get loaded, the lower your fps might become, after how many seconds should the measurements be taken? The balancing of cpu resources might have also changed a lot last snapshot, amount of chunks loaded (letter C) should also be reported.
Using F3 as required (gives less performance, but still...)
21w08b: 208 FPS
21w10a: 195 FPS
OS: Windows 10 Pro Insider Beta (21H1, Build 19043.899)
CPU: AMD Ryzen 5 1600AF @ 3.8Ghz (6C/12T, Zen+ Refresh version of the 1600) [Overclocked]
GPU: NVIDIA Geforce GTX 1660 6GB VRAM
GPU Driver Version: 461.92 (Latest as of 17/03/2021 09:27 UTC)
Additional information:
AdoptOpenJDK 15:
21w08b: 215fps
21w10a: 195fps
1.16.5: 325 FPS
1.17.1: 220 FPS
1.18: 220 FPS
1.18 profiling results:
[media]1.17.1 profiling results:
[media]OS: WIndows 10 home
CPU: Intel i7 7700HQ 2.80GHz up to 3.50GHz turbo boost
GPU: NVIDIA Geforce GTX1060 6GB 490.76
[media]1.18
130 avg
1.17
900 avg
gpu rtx 3080
cpu i7-10700kf
os: windows 10
[media]FPS in 1.16.5 - 7
FPS in the latest 1.18.1 release 22w03a
Windows 10
Intel i7 7700HQ
Nvidia GeForceGTX 1060 with MaxQ Design. / 3.2.0 NVIDIA 472.12
1.16.5: 150 FPS
1.17.1: 94 FPS
1.19.1 Pre Release-4: 110 FPS
Sys Info:
AMD Ryzen 5650U with Radeon graphics (integrated), Windows 10 Pro 64-bit
1.19.1 PR-4 Profile Data:
[media]
1.17.1:
Does this still happen in the newest version? This bug has not been updated for over a year.
[^2021-11-10_10.22.06 [1.16.5].png]
[media][media][media][media][media][media][media][media][media][media][media][media][media][media][media][media][media][media][media][media][media][media][media][media][media][media][media][media][media][media][media][media][media][media][media][media][media][media][media][^2021-11-10_10.25.58 [1.17.1].png]
[^2021-11-10_10.25.58 [1.17.1]-1.png]