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From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 28411] New: Output polling causes latency every 10 seconds
Date: Sun,  6 Jun 2010 10:49:49 -0700 (PDT)	[thread overview]
Message-ID: <bug-28411-502@http.bugs.freedesktop.org/> (raw)

https://bugs.freedesktop.org/show_bug.cgi?id=28411

           Summary: Output polling causes latency every 10 seconds
           Product: DRI
           Version: DRI CVS
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: General
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: marius.groeger@web.de


The output polling in drm_crtc_helper.c added in this commit:

commit eb1f8e4f3be898df808e2dfc131099f5831d491d
Author: Dave Airlie <airlied@redhat.com>
Date:   Fri May 7 06:42:51 2010 +0000 

causes drm latencies every 10 seconds. I observed them in mythtv.

Apparently the dev->mode_config.mutex is held for too long; if I remove the
mutex_lock/unlock for testing purposes the latencies are gone.

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             reply	other threads:[~2010-06-06 17:49 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-06-06 17:49 bugzilla-daemon [this message]
2010-07-19  7:09 ` [Bug 28411] Output polling causes latency every 10 seconds bugzilla-daemon
2010-08-03  6:04 ` bugzilla-daemon

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