On Tue, 16 Apr 2019 16:56:26 +0100 Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote: > Quoting Bob Paauwe (2019-04-16 00:05:26) > > There are real-time use cases where having deterministic CPU processes > > can be more important than GPU power/performance. Parking the GPU at a > > specific freqency by setting idle, min and max prohibits the normal > > dynamic GPU frequency switching which can introduce significant PCI-E > > latency. This adds the ability to configure the GPU "idle" frequecy > > using the same method that already exists for minimum and maximum > > frequencies. > > What exactly is the problem? We never use idle frequency while active, > always restarting at max(cur, rpe). So for the simple minded among us, > where is the igt demonstrating the issue? > -Chris To follow up and close this. When I requested more details on the use case and data for this request, I was informed that a different solution is being pursued and this patch is no longer needed. Thanks for the reviews and comments. Bob -- -- Bob Paauwe Bob.J.Paauwe@xxxxxxxxx IOTG / PED Software Organization Intel Corp. Folsom, CA (916) 356-6193 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
