Re: Performance drop using deinterlace_vaapi on 5.19-rcX

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Am 20.06.22 um 13:40 schrieb Thomas Voegtle:
On Mon, 20 Jun 2022, Christian König wrote:

Hi Thomas,

[moving vger to bcc]

mhm, sounds like something isn't running in parallel any more.

We usually don't test the multimedia engines for this but we do test gfx+compute, so I'm really wondering what goes wrong here.

Could you run some tests for me? Additional to that I'm going to raise that issue with our multimedia guys later today.

Yes, I can run some tests for you. Which tests?

Try this as root:

echo 1 > /sys/kernel/debug/tracing/events/dma_fence/dma_fence_init/enable
echo 1 > /sys/kernel/debug/tracing/events/dma_fence/dma_fence_signaled/enable
cat /sys/kernel/debug/tracing/trace_pipe > trace.log

Then start the encoding in another shell, after it completed cancel the cat with cntr+c and save the log file.

Do this one with the old kernel and once with the new one.

Regards,
Christian.



      Thomas




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