[Bug 82055] New: [HAWAII] Running some programs, when HW acceleration is on, causes X to spike in CPU usage → unresponsive desktop

[Bug 82055] New: [HAWAII] Running some programs, when HW acceleration is on, causes X to spike in CPU usage → unresponsive desktop

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 2120 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=82055

          Priority: medium
            Bug ID: 82055
          Assignee: dri-devel@lists.freedesktop.org
           Summary: [HAWAII] Running some programs, when HW acceleration
                    is on, causes X to spike in CPU usage → unresponsive
                    desktop
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: kai@dev.carbon-project.org
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: git
         Component: Drivers/Gallium/radeonsi
           Product: Mesa

When running certain programs (eg. MediathekView) or watching recorded
broadcasts on Twitch, X starts going up in CPU usage and the desktop becomes
unresponsive, until you kill the stream or the program has finished its draw
operations (can take several seconds). Interestingly enough, YouTube videos are
not affected. In both cases I had HW video acceleration on (through settings in
/etc/adobe/mms.conf), without HW acceleration the plugin is just consuming
ridiculous amounts of CPU cycles.
The problem with Twitch is independent off chosen video quality.

My desktop environment is KDE 4.13.3 with desktop effects enabled (compositing
type=OpenGL 3.1, render target=native), disabling them has no effect on this
issue.

I haven't seen these issues with my previous HD7850 (also using Glamor),
therefore I think this is separate to bug 68524.

My stack is (base: Debian Testing):
GPU: Hawaii PRO [Radeon R9 290] (ChipID = 0x67b1)
Linux: Git:~agdf5/linux:drm-next-3.17-rebased-on-fixes:fa053e7263 (calls itself
3.16-rc6) + attachment 93015 [details] [review]
libdrm: Git:master/libdrm-2.4.56
LLVM: SVN:trunk/r214546 (3.6 snapshot)
libclc: Git:master/5b48f170c8
Mesa: Git:master/e41cc45361
DDX: Git:master/4b5060f357 + Patch from
http://lists.x.org/archives/xorg-driver-ati/2014-July/026517.html
X: 2:1.16.0-2 (1.16.0)

Let me know, if you need further information.

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 4046 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 82055] [HAWAII] Running some programs, when HW acceleration is on, causes X to spike in CPU usage → unresponsive desktop

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 312 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=82055

--- Comment #1 from Michel Dänzer <michel@daenzer.net> ---
Please attach the Xorg.0.log and the output of dmesg and glxinfo.

Is this with DPM successfully changing clocks?

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1238 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 82055] [HAWAII] Running some programs, when HW acceleration is on, causes X to spike in CPU usage → unresponsive desktop

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 950 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=82055

--- Comment #2 from Kai <kai@dev.carbon-project.org> ---
(In reply to comment #1)
> Please attach the Xorg.0.log and the output of dmesg and glxinfo.

Will post those later, when I'm back at that system.

> Is this with DPM successfully changing clocks?

As written in bug 74250, comment #8 reclocking doesn't seem to work for me.
Whatever I've been doing, the output of cat
/sys/kernel/debug/dri/0/radeon_pm_info /sys/kernel/debug/dri/64/radeon_pm_info
stays:
> power level avg    sclk: 30000 mclk: 15000
> power level avg    sclk: 30000 mclk: 15000

(observed through a SSH connection, in order to keep the 3D applications
running fullscreen). I can check the clocks with e.g. MediathekView too, but it
would be very weird if the GPU would reclock for "simple" applications and not
for the 3D applications, wouldn't it?

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 2249 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 82055] [HAWAII] Running some programs, when HW acceleration is on, causes X to spike in CPU usage → unresponsive desktop

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 412 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=82055

--- Comment #3 from Michel Dänzer <michel@daenzer.net> ---
CPU profiles from sysprof or perf or oprofile might be interesting.

AFAICT Twitch requires Flash; what Flash plugin are you using in what browser?

Does doing anything in particular trigger it in MediathekView?

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1338 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 82055] [HAWAII] Running some programs, when HW acceleration is on, causes X to spike in CPU usage → unresponsive desktop

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 1084 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=82055

--- Comment #4 from Kai <kai@dev.carbon-project.org> ---
(In reply to comment #3)
> CPU profiles from sysprof or perf or oprofile might be interesting.

Ok, I'll try to do that; I might not be able to do that today, though.

> AFAICT Twitch requires Flash; what Flash plugin are you using in what
> browser?

Yes, Twitch, like YouTube, requires Flash. I use the plugin installed by
flashplugin-nonfree and its update-flashplugin-nonfree script. It's the 64 bit
version. I check the version number later again. But it was recently updated.

> Does doing anything in particular trigger it in MediathekView?

Sort of: just starting is enough. You get the grey window background at below
average speed and then it takes seconds until the UI elements are drawn (list
of shows, filter boxes, buttons). Afterwards you can trigger a new CPU spike by
trying to click anything or even better on each keypress/character input into
the title filter field on the left.

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 2168 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 82055] [HAWAII] Running some programs, when HW acceleration is on, causes X to spike in CPU usage → unresponsive desktop

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 836 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=82055

--- Comment #5 from Kai <kai@dev.carbon-project.org> ---
(In reply to comment #4)
> (In reply to comment #3)
> > AFAICT Twitch requires Flash; what Flash plugin are you using in what
> > browser?
> 
> Yes, Twitch, like YouTube, requires Flash. I use the plugin installed by
> flashplugin-nonfree and its update-flashplugin-nonfree script. It's the 64
> bit version. I check the version number later again. But it was recently
> updated.

Sorry, forgot to name the browser: Iceweasel 31.0-3 (aka Firefox 31.0).

Just to note this again: other video pages like YouTube don't show the problem
Twitch has. And it's also only giving these spikes, when you try to watch a
recorded broadcast, not for live streams.

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1917 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 82055] [HAWAII] Running some programs, when HW acceleration is on, causes X to spike in CPU usage → unresponsive desktop

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 921 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=82055

--- Comment #6 from Michel Dänzer <michel@daenzer.net> ---
(In reply to comment #4)
> Yes, Twitch, like YouTube, requires Flash.

Actually, YouTube doesn't require Flash, at least not for many videos.


> > Does doing anything in particular trigger it in MediathekView?
> 
> Sort of: just starting is enough. You get the grey window background at
> below average speed and then it takes seconds until the UI elements are
> drawn (list of shows, filter boxes, buttons). Afterwards you can trigger a
> new CPU spike by trying to click anything or even better on each
> keypress/character input into the title filter field on the left.

I can reproduce this with glamor from xserver 1.16.0, but not from current
xserver Git master. So at least that part is already fixed.

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1969 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 82055] [HAWAII] Running some programs, when HW acceleration is on, causes X to spike in CPU usage → unresponsive desktop

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 1366 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=82055

--- Comment #7 from Kai <kai@dev.carbon-project.org> ---
(In reply to comment #6)
> (In reply to comment #4)
> > Yes, Twitch, like YouTube, requires Flash.
> 
> Actually, YouTube doesn't require Flash, at least not for many videos.

If I go by top, then the CPU usage of the plugin container spikes for all
videos on YouTube (usually to about 30-50% on one core with Flash HW
acceleration enabled). But as <https://www.youtube.com/html5> tells me I'm
using the default player, that doesn't seem too surprising.

> > > Does doing anything in particular trigger it in MediathekView?
> > 
> > Sort of: just starting is enough. You get the grey window background at
> > below average speed and then it takes seconds until the UI elements are
> > drawn (list of shows, filter boxes, buttons). Afterwards you can trigger a
> > new CPU spike by trying to click anything or even better on each
> > keypress/character input into the title filter field on the left.
> 
> I can reproduce this with glamor from xserver 1.16.0, but not from current
> xserver Git master. So at least that part is already fixed.

Oh, nice. Do you know which commit resolves this? If not, do you need a bisect?
If yes, will that commit be backported to the 1.16 branch?

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 2573 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 82055] [HAWAII] Running some programs, when HW acceleration is on, causes X to spike in CPU usage → unresponsive desktop

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 294 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=82055

--- Comment #8 from Kai <kai@dev.carbon-project.org> ---
Created attachment 103995
  --> https://bugs.freedesktop.org/attachment.cgi?id=103995&action=edit
Xorg.0.log

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1339 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 82055] [HAWAII] Running some programs, when HW acceleration is on, causes X to spike in CPU usage → unresponsive desktop

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 296 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=82055

--- Comment #9 from Kai <kai@dev.carbon-project.org> ---
Created attachment 103996
  --> https://bugs.freedesktop.org/attachment.cgi?id=103996&action=edit
dmesg output

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1345 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 82055] [HAWAII] Running some programs, when HW acceleration is on, causes X to spike in CPU usage → unresponsive desktop

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 299 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=82055

--- Comment #10 from Kai <kai@dev.carbon-project.org> ---
Created attachment 103997
  --> https://bugs.freedesktop.org/attachment.cgi?id=103997&action=edit
glxinfo output

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1353 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 82055] [HAWAII] Running some programs, when HW acceleration is on, causes X to spike in CPU usage → unresponsive desktop

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 343 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=82055

--- Comment #11 from Kai <kai@dev.carbon-project.org> ---
I've uploaded the requested files (attachment 103995, attachment 103996,
attachment 103997) and now checked the installed Flash version, it is
11.2.202.394.

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1844 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 82055] [HAWAII] Running some programs, when HW acceleration is on, causes X to spike in CPU usage → unresponsive desktop

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 402 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=82055

--- Comment #12 from Kai <kai@dev.carbon-project.org> ---
Created attachment 104000
  --> https://bugs.freedesktop.org/attachment.cgi?id=104000&action=edit
X uses a lot of CPU cycles, as shown by top

As you can see from this top screenshot, X is using a lot of CPU cycles.

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1516 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 82055] [HAWAII] Running some programs, when HW acceleration is on, causes X to spike in CPU usage → unresponsive desktop

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 566 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=82055

--- Comment #13 from Kai <kai@dev.carbon-project.org> ---
Created attachment 104001
  --> https://bugs.freedesktop.org/attachment.cgi?id=104001&action=edit
sysporf points to libpixman

According to the sysprof output, libpixman is the place where moste CPU time
goes. If you want the sysprof output, let me know and I e-mail it to you. Not
sure I want to put it on the internet, as didn't have time to check what data
might be disclosed.

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1651 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 82055] [HAWAII] Running some programs, when HW acceleration is on, causes X to spike in CPU usage → unresponsive desktop

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 980 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=82055

--- Comment #14 from Michel Dänzer <michel@daenzer.net> ---
(In reply to comment #13)
> According to the sysprof output, libpixman is the place where moste CPU time
> goes.

That just means the problem is a software rendering fallback path, but it
doesn't show which one. You'd need to make sure at least the X server binaries
are compiled with -fno-omit-frame-pointer and have debugging symbols.


(In reply to comment #7)
> Do you know which commit resolves this?

Not sure, but my guess would be
http://cgit.freedesktop.org/xorg/xserver/commit/?id=45ebc4e3fac7f1a85167d05e2833949b89f02d64
or one of the commits surrounding it.

> If not, do you need a bisect?

That would be interesting.

> If yes, will that commit be backported to the 1.16 branch?

I can't predict the future, you'll have to nominate it and see. :)

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 2220 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 82055] [HAWAII] Running some programs, when HW acceleration is on, causes X to spike in CPU usage → unresponsive desktop

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 642 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=82055

Kai <kai@dev.carbon-project.org> changed:

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

--- Comment #15 from Kai <kai@dev.carbon-project.org> ---
Ok, since my bisecting adventures took too long I just built
xorg/xserver:master, commit c52a2b1eba. That version doesn't exhibit this
problem. I consider this fixed.

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 2358 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel