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| author |   Ioannis Angelakopoulos <iangelak@fb.com> | 2022-06-14 15:22:34 -0700 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2022-07-25 17:45:37 +0200 |
| commit | 140a8ff76547de36291e948df0de294d5f951678 (patch) | |
| tree | 9a2157c000fa7ea28cbe8525828d9c89716f295b /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | btrfs: collect commit stats, count, duration (diff) | |
| download | linux-dev-140a8ff76547de36291e948df0de294d5f951678.tar.xz linux-dev-140a8ff76547de36291e948df0de294d5f951678.zip | |
btrfs: sysfs: export commit stats
Export commit stats in file
/sys/fs/btrfs/UUID/commit_stats
with example output like:
commits 123
last_commit_ms 11
max_commit_ms 150
total_commit_ms 2000
The values are in one file so reading them at a single time will give a
more consistent view. The stats are internally tracked in nanoseconds so
the cumulative values should not suffer from rounding errors.
Writing 0 to the file 'commit_stats' will reset max_commit_ms.
Initial values are set at first mount of the filesystem.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Ioannis Angelakopoulos <iangelak@fb.com>
[ update changelog ]
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions