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| author | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2014-03-19 14:17:21 +0900 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2014-03-20 22:10:10 +0900 |
| commit | 58c410351eba3d24f741c85a0eb9eaf15c94047d (patch) | |
| tree | 0d6f328aa1c7645a8ba92bc80c91cfd425ca3c91 /Documentation/filesystems/f2fs.txt | |
| parent | 9179682591c231cc77840d4e75929cc1fa573365 (diff) | |
| download | linux-58c410351eba3d24f741c85a0eb9eaf15c94047d.tar.gz linux-58c410351eba3d24f741c85a0eb9eaf15c94047d.tar.bz2 linux-58c410351eba3d24f741c85a0eb9eaf15c94047d.zip | |
f2fs: change reclaim rate in percentage
It is more reasonable to determine the reclaiming rate of prefree segments
according to the volume size, which is set to 5% by default.
For example, if the volume is 128GB, the prefree segments are reclaimed
when the number reaches to 6.4GB.
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'Documentation/filesystems/f2fs.txt')
| -rw-r--r-- | Documentation/filesystems/f2fs.txt | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt index f415b9fc4cc8..2f6d0218dd22 100644 --- a/Documentation/filesystems/f2fs.txt +++ b/Documentation/filesystems/f2fs.txt @@ -169,9 +169,11 @@ Files in /sys/fs/f2fs/<devname> reclaim_segments This parameter controls the number of prefree segments to be reclaimed. If the number of prefree - segments is larger than this number, f2fs tries to - conduct checkpoint to reclaim the prefree segments - to free segments. By default, 100 segments, 200MB. + segments is larger than the number of segments + in the proportion to the percentage over total + volume size, f2fs tries to conduct checkpoint to + reclaim the prefree segments to free segments. + By default, 5% over total # of segments. max_small_discards This parameter controls the number of discard commands that consist small blocks less than 2MB. |