On 6/16/20 11:10 AM, Rong Chen wrote:
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@intel.com 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-Conve... 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
Sorry, the previous lspci is not correct, please find it in this attachment.
Best Regards, Rong Chen
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
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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