[Bug 74335] New: [UVD] vdpau hangs the system on radeonsi (HD 7950)

[Bug 74335] New: [UVD] vdpau hangs the system on radeonsi (HD 7950)

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https://bugs.freedesktop.org/show_bug.cgi?id=74335

          Priority: medium
            Bug ID: 74335
          Assignee: dri-devel@lists.freedesktop.org
           Summary: [UVD] vdpau hangs the system on radeonsi (HD 7950)
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: darkbasic@linuxsystems.it
          Hardware: Other
            Status: NEW
           Version: XOrg CVS
         Component: DRM/Radeon
           Product: DRI

Follow up of https://bugs.freedesktop.org/show_bug.cgi?id=71448

Here is a video which hangs 100% of the times:
https://mega.co.nz/#!eQhSjJQR!EEe8-taN5IspIu-RW0WQzmvKzc5fkCn282kS5ugZ_as

Play with
mplayer2 -vo vdpau, -vc
ffmpeg12vdpau,ffwmv3vdpau,ffvc1vdpau,ffh264vdpau,ffodivxvdpau,
PlanetEarthBirds.mkv

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[Bug 74335] [UVD] vdpau hangs the system on radeonsi (HD 7950)

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https://bugs.freedesktop.org/show_bug.cgi?id=74335

--- Comment #1 from Christian König <deathsimple@vodafone.de> ---
Video works perfectly on my 7870.

Are you sure that's not an unrelated bug?

Please try running it without any desktop effects. Best way to narrow it down
would be a pure X server without anything else started.

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[Bug 74335] [UVD] vdpau hangs the system on radeonsi (HD 7950)

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https://bugs.freedesktop.org/show_bug.cgi?id=74335

--- Comment #2 from darkbasic <darkbasic@linuxsystems.it> ---
Created attachment 93297
  --> https://bugs.freedesktop.org/attachment.cgi?id=93297&action=edit
startx

This is my pure X server so I fear it's not going to happen.
Anyway I just got two more crashes with KDE (one with desktop effects ON and
one with desktop effects OFF) and then it worked for a couple of times.
Anyway it's way too slow (I get "Your system is too SLOW to play this!" in
mplayer).

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[Bug 74335] [UVD] vdpau has terrible performance on radeonsi (HD 7950)

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https://bugs.freedesktop.org/show_bug.cgi?id=74335

darkbasic <darkbasic@linuxsystems.it> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[UVD] vdpau hangs the       |[UVD] vdpau has terrible
                   |system on radeonsi (HD      |performance on radeonsi (HD
                   |7950)                       |7950)

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[Bug 74335] [UVD] vdpau has terrible performance on radeonsi (HD 7950)

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https://bugs.freedesktop.org/show_bug.cgi?id=74335

--- Comment #3 from darkbasic <darkbasic@linuxsystems.it> ---
I switched from libav/mplayer2 to ffmpeg/mplayer git and the crash seems gone.
Bye bye libav.

Being stable I did some more tests and unfortunately performance sucks so I
renamed the bug report.

Benchmarking the video output: ffh264 software decoder + gl/xv/vdpau

~ $ mplayer -benchmark -nosound -lavdopts threads=16 PlanetEarthBirds.mkv -vo
gl

BENCHMARKs: VC:   3.403s VO:   7.530s A:   0.000s Sys:   0.672s =   11.605s
BENCHMARK%: VC: 29.3238% VO: 64.8892% A:  0.0000% Sys:  5.7870% = 100.0000%

~ $ mplayer -benchmark -nosound -lavdopts threads=16 PlanetEarthBirds.mkv -vo
xv

BENCHMARKs: VC:   7.878s VO:   2.162s A:   0.000s Sys:   1.040s =   11.080s
BENCHMARK%: VC: 71.0951% VO: 19.5154% A:  0.0000% Sys:  9.3896% = 100.0000%

~ $ mplayer -benchmark -nosound -lavdopts threads=16 PlanetEarthBirds.mkv -vo
vdpau

BENCHMARKs: VC:   0.863s VO:  43.888s A:   0.000s Sys:   0.550s =   45.300s
BENCHMARK%: VC:  1.9042% VO: 96.8823% A:  0.0000% Sys:  1.2135% = 100.0000%

With both -vo gl and -vo xv it took ~11.080s while with -vo vdpau it took
45.300s. -vo vdpau is *4x* slower.

Benchmarking the video decoder: ffh264/ffh264vdpau + vo null

~ $ mplayer -benchmark -nosound -lavdopts threads=16 PlanetEarthBirds.mkv -vo
null

BENCHMARKs: VC:   8.855s VO:   0.002s A:   0.000s Sys:   0.493s =    9.350s
BENCHMARK%: VC: 94.7024% VO:  0.0262% A:  0.0000% Sys:  5.2714% = 100.0000%

~ $ mplayer -benchmark -nosound PlanetEarthBirds.mkv -vo null -vc ffh264vdpau

It seems I can't use the null video output with the hardware decoder
ffh264vdpau: I get tons of  "Too many buffered pts". It does support only -vo
vdpau, not even xv or gl. Such a pity. (is it a known limitation/bug?)

Let's do a more complete benchmark: ffh264+xv vs ffh264vdpau+vdpau

We already saw ffh264+xv took 11.080s, let's see how ffh264vdpau+vdpau
performs.

~ $ mplayer -benchmark -nosound PlanetEarthBirds.mkv -vo vdpau -vc ffh264vdpau

BENCHMARKs: VC:   0.869s VO:  44.581s A:   0.000s Sys:   0.374s =   45.824s
BENCHMARK%: VC:  1.8955% VO: 97.2876% A:  0.0000% Sys:  0.8169% = 100.0000%

As expected it's still 4 times slower because the bottleneck is obviously the
vdpau video output and not the ffh264vdpau decoder.

Being 4x slower vdpau is completely useless right now :(
Please note that I disabled desktop compositing before doing the tests.

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[Bug 74335] [UVD] vdpau has terrible performance on radeonsi (HD 7950)

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https://bugs.freedesktop.org/show_bug.cgi?id=74335

Christian König <deathsimple@vodafone.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #4 from Christian König <deathsimple@vodafone.de> ---
UVD IRQs weren't working correctly on SI. Bug is fixed upstream by new kernel
release.

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[Bug 74335] [UVD] vdpau has terrible performance on radeonsi (HD 7950)

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https://bugs.freedesktop.org/show_bug.cgi?id=74335

--- Comment #5 from darkbasic <darkbasic@linuxsystems.it> ---
Is it fixed in 3.16-rc6?

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[Bug 74335] [UVD] vdpau has terrible performance on radeonsi (HD 7950)

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https://bugs.freedesktop.org/show_bug.cgi?id=74335

--- Comment #6 from Christian König <deathsimple@vodafone.de> ---
(In reply to comment #5)
> Is it fixed in 3.16-rc6?

That fix should be in all kernels since 3.14. It was named "drm/radeon: fix UVD
IRQ support on SI".

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[Bug 74335] [UVD] vdpau has terrible performance on radeonsi (HD 7950)

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https://bugs.freedesktop.org/show_bug.cgi?id=74335

Christian König <deathsimple@vodafone.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|FIXED                       |---

--- Comment #7 from Christian König <deathsimple@vodafone.de> ---
Ah, stop my fault. That was for the other bug report.

Sorry, I've just messed those two up.

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[Bug 74335] [UVD] vdpau has terrible performance on radeonsi (HD 7950)

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https://bugs.freedesktop.org/show_bug.cgi?id=74335

--- Comment #8 from Vladimir Ysikov <grantipak@gmail.com> ---
ArchLinux x86-64; linux 3.16; mesa git; llvm svn; Radeon HD 7950

Is it still correct?

I have:

$ mplayer -benchmark -nosound -lavdopts threads=16
Planet_Earth_From_Pole_to_Pole_1080p_sample.mkv -vo gl  

BENCHMARKs: VC:   3.404s VO:  17.792s A:   0.000s Sys:   1.978s =   23.174s
BENCHMARK%: VC: 14.6908% VO: 76.7753% A:  0.0000% Sys:  8.5339% = 100.0000%

$ mplayer -benchmark -nosound -lavdopts threads=16
Planet_Earth_From_Pole_to_Pole_1080p_sample.mkv -vo xv

BENCHMARKs: VC:  10.609s VO:   3.479s A:   0.000s Sys:   1.867s =   15.955s
BENCHMARK%: VC: 66.4934% VO: 21.8045% A:  0.0000% Sys: 11.7021% = 100.0000%

$ mplayer -benchmark -nosound -lavdopts threads=16
Planet_Earth_From_Pole_to_Pole_1080p_sample.mkv -vo vdpau

BENCHMARKs: VC:   3.319s VO:  16.936s A:   0.000s Sys:   0.644s =   20.900s
BENCHMARK%: VC: 15.8826% VO: 81.0336% A:  0.0000% Sys:  3.0837% = 100.0000%

$ mplayer -benchmark -nosound -lavdopts threads=16
Planet_Earth_From_Pole_to_Pole_1080p_sample.mkv -vo null

BENCHMARKs: VC:  11.915s VO:   0.003s A:   0.000s Sys:   0.653s =   12.571s
BENCHMARK%: VC: 94.7809% VO:  0.0228% A:  0.0000% Sys:  5.1963% = 100.0000%

$ mplayer -benchmark -nosound -lavdopts threads=16
Planet_Earth_From_Pole_to_Pole_1080p_sample.mkv -vo vdpau -vc ffh264vdpau

BENCHMARKs: VC:   7.402s VO:  13.679s A:   0.000s Sys:   0.692s =   21.773s
BENCHMARK%: VC: 33.9957% VO: 62.8252% A:  0.0000% Sys:  3.1791% = 100.0000%

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[Bug 74335] [UVD] vdpau has terrible performance on radeonsi (HD 7950)

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https://bugs.freedesktop.org/show_bug.cgi?id=74335

--- Comment #9 from Vladimir Usikov <grantipak@gmail.com> ---
mplayer -benchmark -nosound -lavdopts threads=16
Planet_Earth_From_Pole_to_Pole_1080p_sample.mkv -vo gl  

BENCHMARKs: VC:   0.827s VO:  22.917s A:   0.000s Sys:   0.494s =   24.238s
BENCHMARK%: VC:  3.4108% VO: 94.5502% A:  0.0000% Sys:  2.0390% = 100.0000%


$ mplayer -benchmark -nosound -lavdopts threads=16
Planet_Earth_From_Pole_to_Pole_1080p_sample.mkv -vo xv

BENCHMARKs: VC:   3.292s VO:   2.707s A:   0.000s Sys:   0.667s =    6.666s
BENCHMARK%: VC: 49.3886% VO: 40.6098% A:  0.0000% Sys: 10.0016% = 100.0000%


mplayer -benchmark -nosound -lavdopts threads=16
Planet_Earth_From_Pole_to_Pole_1080p_sample.mkv -vo vdpau

BENCHMARKs: VC:   0.752s VO:  22.925s A:   0.000s Sys:   0.482s =   24.158s
BENCHMARK%: VC:  3.1113% VO: 94.8942% A:  0.0000% Sys:  1.9945% = 100.0000%


mplayer -benchmark -nosound -lavdopts threads=16
Planet_Earth_From_Pole_to_Pole_1080p_sample.mkv -vo null

BENCHMARKs: VC:   4.836s VO:   0.004s A:   0.000s Sys:   0.391s =    5.231s
BENCHMARK%: VC: 92.4320% VO:  0.0849% A:  0.0000% Sys:  7.4831% = 100.0000%


mplayer -benchmark -nosound -lavdopts threads=16
Planet_Earth_From_Pole_to_Pole_1080p_sample.mkv -vo vdpau -vc ffh264vdpau

BENCHMARKs: VC:   1.624s VO:  22.466s A:   0.000s Sys:   0.501s =   24.590s
BENCHMARK%: VC:  6.6026% VO: 91.3590% A:  0.0000% Sys:  2.0384% = 100.0000%

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[Bug 74335] [UVD] vdpau has terrible performance on radeonsi (HD 7950)

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https://bugs.freedesktop.org/show_bug.cgi?id=74335

--- Comment #10 from Andy Furniss <adf.lists@gmail.com> ---
That looks normal, I have that sample and it's 1444 frames / 60Hz = 24 seconds.

You can't really turn off vsync for vdpau and mplayer doesn't do gl interop.

Cpu times can mislead if cpufreq on_demand is in use as you don't know what
freq the cores are in.

UVD/powerplay is tuned for playback (at least on recent GPUs) if using with eg.
ffmpeg you can get more perf by forcing GPU clocks to high.

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[Bug 74335] [UVD] vdpau has terrible performance on radeonsi (HD 7950)

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https://bugs.freedesktop.org/show_bug.cgi?id=74335

Christian König <deathsimple@vodafone.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #11 from Christian König <deathsimple@vodafone.de> ---
Yeah, agree. The number look perfectly fine.

Additional to that please don't reopen a three year old bug for this.

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[Bug 74335] [UVD] vdpau has terrible performance on radeonsi (HD 7950)

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Christian König <deathsimple@vodafone.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

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