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| author | Daeho Jeong <daehojeong@google.com> | 2022-07-19 01:02:48 +0200 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2022-07-31 05:17:07 +0200 |
| commit | f8e2f32bcde5945e8f8dbb8714178c24d221366b (patch) | |
| tree | e9360e5772e2b6bc6d04a4c3c72f85a8f716a62b /Documentation/ABI | |
| parent | f2fs: don't bother wait_ms by foreground gc (diff) | |
| download | linux-f8e2f32bcde5945e8f8dbb8714178c24d221366b.tar.xz linux-f8e2f32bcde5945e8f8dbb8714178c24d221366b.zip | |
f2fs: introduce sysfs atomic write statistics
introduce the below 4 new sysfs node for atomic write statistics.
- current_atomic_write: the total current atomic write block count,
which is not committed yet.
- peak_atomic_write: the peak value of total current atomic write block
count after boot.
- committed_atomic_block: the accumulated total committed atomic write
block count after boot.
- revoked_atomic_block: the accumulated total revoked atomic write block
count after boot.
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-fs-f2fs | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index 22c1efd49773..083ac2d63eef 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -586,3 +586,27 @@ Date: June 2022 Contact: "Jaegeuk Kim" <jaegeuk@kernel.org> Description: Shows the number of unusable blocks in a section which was defined by the zone capacity reported by underlying zoned device. + +What: /sys/fs/f2fs/<disk>/current_atomic_write +Date: July 2022 +Contact: "Daeho Jeong" <daehojeong@google.com> +Description: Show the total current atomic write block count, which is not committed yet. + This is a read-only entry. + +What: /sys/fs/f2fs/<disk>/peak_atomic_write +Date: July 2022 +Contact: "Daeho Jeong" <daehojeong@google.com> +Description: Show the peak value of total current atomic write block count after boot. + If you write "0" here, you can initialize to "0". + +What: /sys/fs/f2fs/<disk>/committed_atomic_block +Date: July 2022 +Contact: "Daeho Jeong" <daehojeong@google.com> +Description: Show the accumulated total committed atomic write block count after boot. + If you write "0" here, you can initialize to "0". + +What: /sys/fs/f2fs/<disk>/revoked_atomic_block +Date: July 2022 +Contact: "Daeho Jeong" <daehojeong@google.com> +Description: Show the accumulated total revoked atomic write block count after boot. + If you write "0" here, you can initialize to "0". |