6:12 p.m.
FYI, we noticed that xfstests.time.file_system_outputs -6.0% improvement on
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
commit ad68972acb82c3e8bba316d542ab204984cb1f1c ("xfs: xfs_cluster_write is
redundant")
=========================================================================================
compiler/disk/fs/kconfig/rootfs/tbox_group/test/testcase:
gcc-4.9/4HDD/xfs/x86_64-rhel/debian-x86_64-2015-02-07.cgz/vm-kbuild-4G/generic-127/xfstests
commit:
fbcc025613590d7b1d15521555dcc6393a148a6b
ad68972acb82c3e8bba316d542ab204984cb1f1c
fbcc025613590d7b ad68972acb82c3e8bba316d542
---------------- --------------------------
%stddev %change %stddev
\ | \
8055643 ± 0% -6.0% 7568459 ± 0% xfstests.time.file_system_outputs
11.74 ± 2% +28.9% 15.13 ± 21% xfstests.time.user_time
11.74 ± 2% +28.9% 15.13 ± 21% time.user_time
vm-kbuild-4G: qemu-system-x86_64 -enable-kvm -cpu qemu64,+ssse3
Memory: 4G
xfstests.time.file_system_outputs
9e+06 ++------------------------------------------------------------------+
*.*.*.*.*.*.*.*.*.*.*.* *.*.*.*.*.*.*.*.*.*.*.*.* *.*.*.*.*.*.*.*
8e+06 O+O O O O O O O O O O O O O O O O O O O O O O : |
7e+06 ++ : : : : |
| : : : : |
6e+06 ++ : : : : |
5e+06 ++ : : : : |
| : : : : |
4e+06 ++ : : : : |
3e+06 ++ : : : : |
| : : : : |
2e+06 ++ : : |
1e+06 ++ : : |
| : : |
0 ++--O-O-O-O-------------*---------------------------*---------------+
[*] bisect-good sample
[O] bisect-bad sample
To reproduce:
git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp run job.yaml
Disclaimer:
Results have been estimated based on internal Intel analysis and are provided
for informational purposes only. Any difference in system hardware or software
design or configuration may affect actual performance.
Thanks,
Xiaolong Ye