diff options
| author | Xiubo Li <xiubli@redhat.com> | 2020-09-03 09:01:40 -0400 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2020-10-12 15:29:26 +0200 |
| commit | 1dd8d470813699baab9112e95fce00979b21c4f7 (patch) | |
| tree | fac3dd9bc808ffbe8ddc9636b4486848e794f1ab /fs/ceph/debugfs.c | |
| parent | 2678da88f4b449300d56e0e7a9e77d1a79c83463 (diff) | |
| download | linux-1dd8d470813699baab9112e95fce00979b21c4f7.tar.bz2 | |
ceph: metrics for opened files, pinned caps and opened inodes
In client for each inode, it may have many opened files and may
have been pinned in more than one MDS servers. And some inodes
are idle, which have no any opened files.
This patch will show these metrics in the debugfs, likes:
item total
-----------------------------------------
opened files / total inodes 14 / 5
pinned i_caps / total inodes 7 / 5
opened inodes / total inodes 3 / 5
Will send these metrics to ceph, which will be used by the `fs top`,
later.
[ jlayton: drop unrelated hunk, count hashed inodes instead of
allocated ones ]
URL: https://tracker.ceph.com/issues/47005
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph/debugfs.c')
| -rw-r--r-- | fs/ceph/debugfs.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/ceph/debugfs.c b/fs/ceph/debugfs.c index 75b13175c530..7a8fbe3e4751 100644 --- a/fs/ceph/debugfs.c +++ b/fs/ceph/debugfs.c @@ -148,6 +148,17 @@ static int metric_show(struct seq_file *s, void *p) int nr_caps = 0; s64 total, sum, avg, min, max, sq; + sum = percpu_counter_sum(&m->total_inodes); + seq_printf(s, "item total\n"); + seq_printf(s, "------------------------------------------\n"); + seq_printf(s, "%-35s%lld / %lld\n", "opened files / total inodes", + atomic64_read(&m->opened_files), sum); + seq_printf(s, "%-35s%lld / %lld\n", "pinned i_caps / total inodes", + atomic64_read(&m->total_caps), sum); + seq_printf(s, "%-35s%lld / %lld\n", "opened inodes / total inodes", + percpu_counter_sum(&m->opened_inodes), sum); + + seq_printf(s, "\n"); seq_printf(s, "item total avg_lat(us) min_lat(us) max_lat(us) stdev(us)\n"); seq_printf(s, "-----------------------------------------------------------------------------------\n"); |