Re: [PATCH v5] drm/sched: Add FIFO sched policy to run queue

2022-09-28 Thread Luben Tuikov
Inlined: On 2022-09-28 14:49, Andrey Grodzovsky wrote: > When many entities are competing for the same run queue > on the same scheduler, we observe an unusually long wait > times and some jobs get starved. This has been observed on GPUVis. > > The issue is due to the Round Robin policy used by

[PATCH v5] drm/sched: Add FIFO sched policy to run queue

2022-09-28 Thread Andrey Grodzovsky
When many entities are competing for the same run queue on the same scheduler, we observe an unusually long wait times and some jobs get starved. This has been observed on GPUVis. The issue is due to the Round Robin policy used by schedulers to pick up the next entity's job queue for execution.