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Diffstat (limited to 'results/classifier/accel-gemma3:12b/vmm/849')
| -rw-r--r-- | results/classifier/accel-gemma3:12b/vmm/849 | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/results/classifier/accel-gemma3:12b/vmm/849 b/results/classifier/accel-gemma3:12b/vmm/849 new file mode 100644 index 000000000..6b698990d --- /dev/null +++ b/results/classifier/accel-gemma3:12b/vmm/849 @@ -0,0 +1,23 @@ + +High mouse polling rate stutters some applications +Description of problem: +There are couple of instances where moving the mouse would slow down some applications, especially for games + +https://www.reddit.com/r/VFIO/comments/ect3sd/having_an_issue_with_my_vm_where_games_stutter/ + +https://www.reddit.com/r/VFIO/comments/n9hwtg/game_fps_drop_on_mouse_input/ + +https://www.reddit.com/r/VFIO/comments/ln1uwb/evdev_mouse_passthrough_with_1000hz_mouse_causes/ + +https://www.reddit.com/r/VFIO/comments/se92rq/looking_for_advice_on_poor_gpu_passthrough/ + +I myself included, is impacted by this mysterious issue, I'm not pretty sure whether this is related to VFIO or QEMU or both, but I'm definitely sure this is a kind of regression in between since I had no such issue before. +Steps to reproduce: +1. Do a GPU passthrough +2. Get a mouse capable of outputting high polling rate like 1000Hz, usually they are categorized as gaming mouses +3. Start any 3D applications, including stuff like Unreal Engine 4 Editor or any games +4. See mysterious stuttering +Additional information: +I'm using an AMD Ryzen 7 3700X CPU as the host, but I have made scripts that pins CPU to the VM to get better performance speculatively by putting the threads on the same CCX to minimize memory latency as much as possible. This alleviated some terrible lag, but not by much. (like 11 FPS to 20 FPS if you move your mouse which is still crappy compared to 90+ FPS when static) + +I suspect there is something wrong with the USB subsystem. |