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| author | David Howells <dhowells@redhat.com> | 2015-02-19 23:47:31 +0000 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2015-02-24 10:05:27 +0000 |
| commit | 182d919b84902eece162c63ed3d476c8016b4197 (patch) | |
| tree | c2f02f26cdcaa4718121c94e8b050a598fab5f8c /Documentation/filesystems/caching/fscache.txt | |
| parent | b2b89ebfc0f0287e20516a5443d93af309b800cf (diff) | |
| download | talos-op-linux-182d919b84902eece162c63ed3d476c8016b4197.tar.gz talos-op-linux-182d919b84902eece162c63ed3d476c8016b4197.zip | |
FS-Cache: Count culled objects and objects rejected due to lack of space
Count the number of objects that get culled by the cache backend and the
number of objects that the cache backend declines to instantiate due to lack
of space in the cache.
These numbers are made available through /proc/fs/fscache/stats
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Steve Dickson <steved@redhat.com>
Acked-by: Jeff Layton <jeff.layton@primarydata.com>
Diffstat (limited to 'Documentation/filesystems/caching/fscache.txt')
| -rw-r--r-- | Documentation/filesystems/caching/fscache.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/filesystems/caching/fscache.txt b/Documentation/filesystems/caching/fscache.txt index 770267af5b3e..66fa7fbccfa4 100644 --- a/Documentation/filesystems/caching/fscache.txt +++ b/Documentation/filesystems/caching/fscache.txt @@ -303,6 +303,10 @@ proc files. wrp=N Number of in-progress write_page() cache ops ucp=N Number of in-progress uncache_page() cache ops dsp=N Number of in-progress dissociate_pages() cache ops + CacheEv nsp=N Number of object lookups/creations rejected due to lack of space + stl=N Number of stale objects deleted + rtr=N Number of objects retired when relinquished + cul=N Number of objects culled (*) /proc/fs/fscache/histogram |
