diff options
| author | Daeho Jeong <daehojeong@google.com> | 2025-10-07 09:46:14 -0700 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2025-10-24 21:23:55 +0000 |
| commit | 81464df36094340395cadc9235e24eb4defa8c43 (patch) | |
| tree | 89905a738e95e998a94c8bf672a2f043b34c6c8c | |
| parent | e462fc48ceb8224811c3224650afed05cb7f0872 (diff) | |
f2fs: set default valid_thresh_ratio to 80 for zoned devices
Zoned storage devices provide marginal over-capacity space, typically
around 10%, for filesystem level storage control.
By utilizing this extra capacity, we can safely reduce the default
'valid_thresh_ratio' to 80. This action helps to significantly prevent
excessive garbage collection (GC) and the resulting power consumption,
as the filesystem becomes less aggressive about cleaning segments
that still hold a high percentage of valid data.
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
| -rw-r--r-- | fs/f2fs/gc.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/f2fs/gc.h b/fs/f2fs/gc.h index 24e8b1c27acc..6c4d4567571e 100644 --- a/fs/f2fs/gc.h +++ b/fs/f2fs/gc.h @@ -25,7 +25,7 @@ #define DEF_GC_THREAD_CANDIDATE_RATIO 20 /* select 20% oldest sections as candidates */ #define DEF_GC_THREAD_MAX_CANDIDATE_COUNT 10 /* select at most 10 sections as candidates */ #define DEF_GC_THREAD_AGE_WEIGHT 60 /* age weight */ -#define DEF_GC_THREAD_VALID_THRESH_RATIO 95 /* do not GC over 95% valid block ratio for one time GC */ +#define DEF_GC_THREAD_VALID_THRESH_RATIO 80 /* do not GC over 80% valid block ratio for one time GC */ #define DEFAULT_ACCURACY_CLASS 10000 /* accuracy class */ #define LIMIT_INVALID_BLOCK 40 /* percentage over total user space */ |