After the recent optimisation of radeonsi for Ryzen CPUs (appa=
rently change in
thread management distributing them to CPU cores), the performance of the
WarThunder game dived radically.
Normally it was 40-60FPS. After the change it appears OK when in plain fiel=
ds,
but when moving the vehicle into a more intensive area, where shots are fir=
ed
or other player vehicles are around, the FPS drops to 0-10 with really
noticeable freezes and stuttering. This was never the case before the chang=
e,
The GPU is Radeon RX 560 (4GB memory).
The CPU is AMD Threadripper 1920x (12 cores/24 threads) so it may be one wh=
ere
the optimisations are applied. Are Threadripper CCX/core layout properly
recognized by the patch for Ryzen?
Before the patch I noticed, the speed of the game can be visibly negatively
affected if other tasks are running on the CPU. So I always run the game wi=
th
no other CPU heavy tasks running. The report is also with no other tasks. It
may be the change of thread scheduling from the patch has now invoked the
core/thread load scenario the game is sensitive to.
I run Mesa from git so I noticed this problem when it was merged.
Now running on Mesa 18.2.2 stable and the problem is not there.