Re: [f2fs-dev] [PATCH 2/2] f2fs: add a sysfs entry to reclaim POSIX_FADV_NOREUSE pages

[Chao Yu]

On 2/12/25 10:31, Jaegeuk Kim via Linux-f2fs-devel wrote:
> 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.
> 
> Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>

Reviewed-by: Chao Yu <chao@xxxxxxxxxx>

Thanks,