[Bug 99426] gem_mmap_gtt swap tests are too long - perf: interrupt took too long

[Bug 99426] gem_mmap_gtt swap tests are too long - perf: interrupt took too long

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=99426

            Bug ID: 99426
           Summary: gem_mmap_gtt swap tests are too long - perf: interrupt
                    took too long
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: IGT
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: christophe.prigent@intel.com

Tested on BDW, SNB, SKL, IVB, HSW, BYT with SW config:

Kernel: 4.10.0-rc3 ea7e3e5 branch drm-tip from
https://cgit.freedesktop.org/drm-tip
  commit ea7e3e5c99e316fb6876399f9b32b2372e45c4af
  Author: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
  Date:   Mon Jan 9 16:46:47 2017 +0200
  drm-tip: 2017y-01m-09d-14h-45m-54s UTC integration manifest

libdrm-2.4.74-21 geebefaf from git://anongit.freedesktop.org/mesa/drm
mesa: mesa-13.0.2 c9e993b from git://anongit.freedesktop.org/mesa/mesa
cairo 1.15.4 9fe6683 from git://anongit.freedesktop.org/cairo
xorg-server-1.19.0-38 9d32b71 from git://git.freedesktop.org/git/xorg/xserver
xf86-video-intel 2.99.917-747 028c946 from
git://git.freedesktop.org/git/xorg/driver/xf86-video-intel
libva-1.7.2-45 acbc209 from git://git.freedesktop.org/git/vaapi/libva 
vaapi-intel-driver: 1.7.2-216 70770f9 from
git://git.freedesktop.org/git/vaapi/intel-driver
intel-gpu-tools-1.17 e2eefcc from
http://anongit.freedesktop.org/git/xorg/app/intel-gpu-tools.git

Steps:
-------
1. Execute IGT test manually (no timeout is used):
./gem_mmap_gtt --r swap-copy
2. Wait 100 hours

Actual results:
----------------
2. Test is still not finished after 100 hours (IGT is still running - DUT is
not freezed)
dmesg shows the same logs on all platforms, example on SKL:
[  151.322722] [IGT] gem_mmap_gtt: executing
[  151.353973] [IGT] gem_mmap_gtt: starting subtest swap-copy
[  151.354090] gem_mmap_gtt (31952): drop_caches: 4
[ 4843.205005] perf: interrupt took too long (2540 > 2500), lowering
kernel.perf_event_max_sample_rate to 78500
[ 6383.794279] perf: interrupt took too long (3202 > 3175), lowering
kernel.perf_event_max_sample_rate to 62250
[ 9271.093175] perf: interrupt took too long (4037 > 4002), lowering
kernel.perf_event_max_sample_rate to 49500
[14046.280647] perf: interrupt took too long (5090 > 5046), lowering
kernel.perf_event_max_sample_rate to 39250
[22889.758381] perf: interrupt took too long (6365 > 6362), lowering
kernel.perf_event_max_sample_rate to 31250
[50315.915256] perf: interrupt took too long (7982 > 7956), lowering
kernel.perf_event_max_sample_rate to 25000

Expected results:
-----------------
2. Test is not so long

Info:
-----
I can't attach dmesg due to its size
There is no log from IGT

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[Bug 99426] gem_mmap_gtt swap tests are too long - perf: interrupt took too long

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https://bugs.freedesktop.org/show_bug.cgi?id=99426

Francesco Balestrieri <francesco.balestrieri@intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|medium                      |lowest

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[Bug 99426] gem_mmap_gtt swap tests are too long - perf: interrupt took too long

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=99426

Martin Peres <martin.peres@free.fr> changed:

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

--- Comment #1 from Martin Peres <martin.peres@free.fr> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance:
https://gitlab.freedesktop.org/drm/igt-gpu-tools/issues/1.

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