Bug 86832

Summary:

[dota2][si] freezes up to 3 seconds when many/big display effects happen

Product:

DRI

Reporter:

Sylvain BERTRAND <sylvain.bertrand>

Component:

DRM/Radeon

Assignee:

Default DRI bug account <dri-devel>

Status:

RESOLVED FIXED

QA Contact:

Severity:

critical

Priority:

medium

Version:

unspecified

Hardware:

x86-64 (AMD64)

OS:

Linux (All)

Whiteboard:

i915 platform:

i915 features:

Attachments:

Description	Flags
dmesg	none
Xorg.0.log	none
dmesg with minimal drm-next-3.19 kernel	none
drm-next-3.19 kernel config used for testing	none

Description Sylvain BERTRAND 2014-11-28 18:50:28 UTC

up-to-date fedora x86_64 rawhide with no-debug kernel. Radeon R9 280X.

dota2 will most of the time freeze up to several seconds when many/big display effects happen.

This is critical since while in a [team] fight where those effects happen, the freeze time will make you lose the fight most of the time.

Comment 1 Sylvain BERTRAND 2014-11-28 19:00:33 UTC

Created attachment 110189 [details]
dmesg

nothing special in dmesg, even with happened freeze

Comment 2 Sylvain BERTRAND 2014-11-28 19:01:11 UTC

Created attachment 110190 [details]
Xorg.0.log

idem for Xorg.0.log

Comment 3 Michel Dänzer 2014-12-01 04:41:06 UTC

What version of Mesa are you using?

Comment 4 Sylvain BERTRAND 2014-12-01 14:04:06 UTC

up-to-date fedora rawhide, but dota2 is a 32 bits app:
Name        : mesa-libGL
Arch        : i686
Version     : 10.5.0
Release     : 0.devel.2.3d9c1a9.fc22
Size        : 783 k
Repo        : installed
From repo   : rawhide
Summary     : Mesa libGL runtime libraries and DRI drivers
URL         : http://www.mesa3d.org
License     : MIT
Description : Mesa libGL runtime library.

Comment 5 Michel Dänzer 2014-12-02 07:15:17 UTC

Any chance you could try a kernel from Alex Deucher (agd5f)'s drm-next-3.19 branch?

Comment 6 Sylvain BERTRAND 2014-12-02 14:59:55 UTC

Not really. Last time I tried dev stuff on fedora rawhide, it was complex and heavy (massive kludge), and at the end the system refused to boot up (systemd sh*t). I still don't have my custom "live"/mobile gnu/linux distro ready (need to code a few more components).

Comment 7 Sylvain BERTRAND 2014-12-03 03:53:34 UTC

Got my hands on Alex D. drm-next-3.19, I'm going to try...

Comment 8 Sylvain BERTRAND 2014-12-04 19:53:30 UTC

Ok... after several hours, I was able to pinpoint proper kernel features to be allowed by the Grand Master Of Kludge, systemd, and its minions, rtkit and fedora configuration, to run!
I have a very minimal kernel to avoid, as much as I can, interference from other components. I'll start testing from now.

Notice UVD and DPM winning in the provided dmesg. I do provide the kernel config file for reference too.

Comment 9 Sylvain BERTRAND 2014-12-04 19:54:53 UTC

Created attachment 110468 [details]
dmesg with minimal drm-next-3.19 kernel

see the UVD and DPM winning

Comment 10 Sylvain BERTRAND 2014-12-04 19:56:31 UTC

Created attachment 110469 [details]
drm-next-3.19 kernel config used for testing

It contains all the required features to please systemd, rtkit and other fedora configuration kludge.

Comment 11 Sylvain BERTRAND 2014-12-08 03:58:46 UTC

not temporary freeze with this kernel seen.

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