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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2025-01-31 22:27:57 +0000 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2025-02-13 17:58:36 +0000 |
| commit | a907f3a68ee26ba493a08a958809208d17f3347e (patch) | |
| tree | e1b35d76ea976deda790c5ed6855de6c782f7784 /tools/perf/scripts/python | |
| parent | ef0c333cad8d1940f132a7ce15f15920216a3bd5 (diff) | |
f2fs: add a sysfs entry to reclaim POSIX_FADV_NOREUSE pages
1. fadvise(fd1, POSIX_FADV_NOREUSE, {0,3});
2. fadvise(fd2, POSIX_FADV_NOREUSE, {1,2});
3. fadvise(fd3, POSIX_FADV_NOREUSE, {3,1});
4. echo 1024 > /sys/fs/f2fs/tuning/reclaim_caches_kb
This gives a way to reclaim file-backed pages by iterating all f2fs mounts until
reclaiming 1MB page cache ranges, registered by #1, #2, and #3.
5. cat /sys/fs/f2fs/tuning/reclaim_caches_kb
-> gives total number of registered file ranges.
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions