On 6/16/20 9:49 PM, Thomas Zimmermann wrote:
Hi
Am 16.06.20 um 05:10 schrieb Rong Chen:
On 6/16/20 4:58 AM, Emil Velikov wrote:
Hi all,
On Thu, 4 Jun 2020 at 08:11, kernel test robot <rong.a.chen@xxxxxxxxx>
wrote:
Greeting,
FYI, we noticed a -64.9% regression of
phoronix-test-suite.glmark2.800x600.score due to commit:
On one hand, I'm really happy to see performance testing happening
although this report is missing various crucial pieces of information.
commit: e44e907dd8f937313d35615d799d54162c56d173 ("[PATCH v3 05/15]
drm/mgag200: Split MISC register update into PLL selection, SYNC and
I/O")
url:
https://github.com/0day-ci/linux/commits/Thomas-Zimmermann/drm-mgag200-Convert-to-atomic-modesetting/20200515-163744
base: git://anongit.freedesktop.org/drm/drm-tip drm-tip
in testcase: phoronix-test-suite
on test machine: 16 threads Intel(R) Xeon(R) CPU X5570 @ 2.93GHz with
48G memory
with following parameters:
need_x: true
Replace "need_x" with the Xorg version as seen in `Xorg -version'.
# Xorg -version
/bin/sh: warning: setlocale: LC_ALL: cannot change locale (en_US.UTF-8)
X.Org X Server 1.20.4
X Protocol Version 11, Revision 0
Build Operating System: Linux 4.9.0-8-amd64 x86_64 Debian
Current Operating System: Linux lkp-nhm-2ep1
5.7.0-rc5-01428-ge44e907dd8f937 #1 SMP Tue Jun 2 19:51:38 CST 2020 x86_64
Kernel command line: ip=::::lkp-nhm-2ep1::dhcp
root=/dev/disk/by-id/wwn-0x55cd2e4123123127-part2
rootflags=subvol=debian-x86_64-phoronix
remote_rootfs=internal-lkp-server:/osimage/debian/debian-x86_64-phoronix
user=lkp
job=/lkp/jobs/scheduled/lkp-nhm-2ep1/phoronix-test-suite-performance-true-glmark2-1.1.0-ucode=0x1d-debian-x86_64-phoronix-e44e907dd8f937313d35615d799d54162c56d173-20200616-56456-1kgmjzm-0.yaml
ARCH=x86_64 kconfig=x86_64-rhel-7.6
branch=linux-devel/devel-hourly-2020051600
commit=e44e907dd8f937313d35615d799d54162c56d173
BOOT_IMAGE=/pkg/linux/x86_64-rhel-7.6/gcc-7/e44e907dd8f937313d35615d799d54162c56d173/vmlinuz-5.7.0-rc5-01428-ge44e907dd8f937
console=ttyS1,115200 console=tty0 max_uptime=3600
RESULT_ROOT=/result/phoronix-test-suite/performance-true-glmark2-1.1.0-ucode=0x1d/lkp-nhm-2ep1/debian-x86_64-phoronix/x86_64-rhel-7.6/gcc-7/e44e907dd8f937313d35615d799d54162c56d173/4
LKP_SERVER=inn nokaslr selinux=0 debug apic=debug sysrq_always_enabled
rcupdate.rcu_cpu_stall_timeout=100 net.ifnames=0 printk.devkmsg=on
panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2
prompt_ramdisk=0 drbd.minor_count=8 systemd.log_level=err
ignore_loglevel console=tty0 earlyprintk=ttyS0,115200
console=ttyS0,115200 vga=normal rw
Build Date: 05 March 2019 08:11:12PM
xorg-server 2:1.20.4-1 (https://www.debian.org/support)
Current version of pixman: 0.36.0
Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
test: glmark2-1.1.0
cpufreq_governor: performance
ucode: 0x1d
test-description: The Phoronix Test Suite is the most comprehensive
testing and benchmarking platform available that provides an
extensible framework for which new tests can be easily added.
test-url: http://www.phoronix-test-suite.com/
Please remove the test description and url. They don't add any value.
Mention which Mesa version is used as well as on what GPU. The output
of lspci and glxinfo will help here.
Attached please find the outputs of lspci and glxinfo
For this particular test - there is no Mesa/upstream driver for this
GPU, so I imagine one of the swrast drivers was used. Which one -
swrast (classic, softpipe, llvmpipe, swr) or kms_swrast.
The output of `LD_DEBUG=libs glxinfo |& grep _dri.so` will help here.
# LD_DEBUG=libs glxinfo |& grep _dri.so
2132: calling init: /usr/lib/i386-linux-gnu/dri/swrast_dri.so
2132: calling fini: /usr/lib/i386-linux-gnu/dri/swrast_dri.so [0]
Best Regards,
Rong Chen
Thanks for testing. If I send out a patch, could you try it?
Yes, we can test the new patch if still needed.
Best Regards,
Rong Chen
Best regards
Thomas
commit:
bef2303526 ("drm/mgag200: Move mode-setting code into separate
helper function")
e44e907dd8 ("drm/mgag200: Split MISC register update into PLL
selection, SYNC and I/O")
Actually the offending commit has a subtle change of behaviour - it
adds an extra MGAREG_MISC_RAMMAPEN.
That is not documented and I've failed to spot it during review.
Thomas - shall we revert that line in itself or at least add an inline
comment why it is needed?
100
+---------------------------------------------------------------------+
90 |-+ + + +.+ + + + + +
: |
| : : : : : : : : : :
: |
80 |-: : : : : : : : : :
: |
70 |-:: : :: : : : :: :: : ::
: |
|: : : : : : : : : : : : : : : : : :
: |
60 |:+: : : : : : : : : : : : : : : : :
: |
50 |:+: : : : : : : : : : : : : : : : :
: |
40 |:+ : : : : : : : : : : : : : : : : :
: |
|: : : : : : : : : : : : : : : : : : :O O
O O O |
30 |:+ : : : : : : : : : : : : : : : : :
: |
20 |-+ :: : : : : : :: : : :: : : O
: |
| : : : : : : : : : : : :
: |
10 |-+ : : : : : : : : : : : :
: |
0
+---------------------------------------------------------------------+
phoronix-test-suite.glmark2.1024x768.score
70
+----------------------------------------------------------------------+
| + + + +..+ + + + + +
+.+ |
60 |-: : : : : : : : : :
: |
| : : : : : : : : : :
: |
50 |-:: : :: : : :: : : :: ::
: |
|: : : : : : : : : : : : : : : : : :
: |
40 |:+: : : : : : : : : : : : : : : : :
: |
|: : : : : : : : : : : : : : : : : : :
O |
30 |:+ : : : : : : : : : : : : : : : : : :O
O O O |
|: : : : : : : : : : : : : : : : : :
: |
20 |:+ : : : : : : : : : : : : : : : : :
: |
| :: : : : : : :: : : :: : : O
:: |
10 |-+ : : : : : : : : : : : :
: |
| : : : O : O : : O : : : O : : :
: |
0
+----------------------------------------------------------------------+
[*] bisect-good sample
[O] bisect-bad sample
Hmm I must be going blind - there isn't even a single * in either of
the graphs.
Or perhaps my eyesight is fine and the legend or the graphs need fixing.
HTH
-Emil
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