Quoting Oliver Sang (2020-11-19 07:20:18)
> On Fri, Nov 13, 2020 at 04:27:13PM +0200, Joonas Lahtinen wrote:
> > Hi,
> > 
> > Could you add intel-...@lists.freedesktop.org into reports going
> > forward.
> > 
> > Quoting kernel test robot (2020-11-11 17:58:11)
> > > 
> > > Greeting,
> > > 
> > > FYI, we noticed a -54.0% regression of 
> > > phoronix-test-suite.jxrendermark.RadialGradientPaint.1024x1024.operations_per_second
> > >  due to commit:
> > 
> > How many runs are there on the bad version to ensure the bisect is
> > repeatable?
> 
> test 4 times.
> zxing@inn:/result/phoronix-test-suite/performance-true-Radial_Gradient_Paint-1024x1024-jxrendermark-1.2.4-ucode=0xd6-monitor=da39a3ee/lkp-cfl-d1/debian-x86_64-phoronix/x86_64-rhel-8.3/gcc-9/59dd13ad310793757e34afa489dd6fc8544fc3da$
>  grep -r "operations_per_second" */stats.json
> 0/stats.json: 
> "phoronix-test-suite.jxrendermark.RadialGradientPaint.1024x1024.operations_per_second":
>  4133.487932,
> 1/stats.json: 
> "phoronix-test-suite.jxrendermark.RadialGradientPaint.1024x1024.operations_per_second":
>  4120.421503,
> 2/stats.json: 
> "phoronix-test-suite.jxrendermark.RadialGradientPaint.1024x1024.operations_per_second":
>  4188.414835,
> 3/stats.json: 
> "phoronix-test-suite.jxrendermark.RadialGradientPaint.1024x1024.operations_per_second":
>  4068.549514,

a w/o revert (drm-tip)
b w/ revert
+mB----------------------------------------------------------------------------+
|                             ..b                                              |
|                             ..b.aa                                           |
|                             ....a.a                                          |
|                             ....a.a                                          |
|                      b  b  ........a                                         |
|                   b  b  b b......... a                                       |
|                   b  bb bbb...........                                       |
|b               ab bbab.bb.b............ba b a a            ab               a|
|                             |__A__|                                          |
|                             |MA_|                                            |
+------------------------------------------------------------------------------+
    N                Min           Max        Median           Avg        Stddev
a 120          3621.8761     7356.4442     4606.7895     4607.9132     156.17693
b 120          2664.0563     6359.9686     4519.5036     4534.4463     95.471121

The patch is not expected to have any impact on the machine you are testing on.
-Chris

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