diff options
author | Xiubo Li <xiubli@redhat.com> | 2021-05-13 09:40:53 +0800 |
---|---|---|
committer | Ilya Dryomov <idryomov@gmail.com> | 2021-06-29 00:15:51 +0200 |
commit | 903f4fec78dd05a48fdccdf4539c040fb2d5bbf4 (patch) | |
tree | e6fdd3498a0a70896d7768b76518f42c61c0931f /fs/ceph/debugfs.c | |
parent | fc123d5f504bfb26d5947c68c5eb1b164d069509 (diff) |
ceph: add IO size metrics support
This will collect IO's total size and then calculate the average
size, and also will collect the min/max IO sizes.
The debugfs will show the size metrics in bytes and will let the
userspace applications to switch to what they need.
URL: https://tracker.ceph.com/issues/49913
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-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 | 37 |
1 files changed, 33 insertions, 4 deletions
diff --git a/fs/ceph/debugfs.c b/fs/ceph/debugfs.c index 425f3356332a..38b78b45811f 100644 --- a/fs/ceph/debugfs.c +++ b/fs/ceph/debugfs.c @@ -127,7 +127,7 @@ static int mdsc_show(struct seq_file *s, void *p) return 0; } -#define CEPH_METRIC_SHOW(name, total, avg, min, max, sq) { \ +#define CEPH_LAT_METRIC_SHOW(name, total, avg, min, max, sq) { \ s64 _total, _avg, _min, _max, _sq, _st; \ _avg = ktime_to_us(avg); \ _min = ktime_to_us(min == KTIME_MAX ? 0 : min); \ @@ -140,6 +140,12 @@ static int mdsc_show(struct seq_file *s, void *p) name, total, _avg, _min, _max, _st); \ } +#define CEPH_SZ_METRIC_SHOW(name, total, avg, min, max, sum) { \ + u64 _min = min == U64_MAX ? 0 : min; \ + seq_printf(s, "%-14s%-12lld%-16llu%-16llu%-16llu%llu\n", \ + name, total, avg, _min, max, sum); \ +} + static int metric_show(struct seq_file *s, void *p) { struct ceph_fs_client *fsc = s->private; @@ -147,6 +153,7 @@ static int metric_show(struct seq_file *s, void *p) struct ceph_client_metric *m = &mdsc->metric; int nr_caps = 0; s64 total, sum, avg, min, max, sq; + u64 sum_sz, avg_sz, min_sz, max_sz; sum = percpu_counter_sum(&m->total_inodes); seq_printf(s, "item total\n"); @@ -170,7 +177,7 @@ static int metric_show(struct seq_file *s, void *p) max = m->read_latency_max; sq = m->read_latency_sq_sum; spin_unlock(&m->read_metric_lock); - CEPH_METRIC_SHOW("read", total, avg, min, max, sq); + CEPH_LAT_METRIC_SHOW("read", total, avg, min, max, sq); spin_lock(&m->write_metric_lock); total = m->total_writes; @@ -180,7 +187,7 @@ static int metric_show(struct seq_file *s, void *p) max = m->write_latency_max; sq = m->write_latency_sq_sum; spin_unlock(&m->write_metric_lock); - CEPH_METRIC_SHOW("write", total, avg, min, max, sq); + CEPH_LAT_METRIC_SHOW("write", total, avg, min, max, sq); spin_lock(&m->metadata_metric_lock); total = m->total_metadatas; @@ -190,7 +197,29 @@ static int metric_show(struct seq_file *s, void *p) max = m->metadata_latency_max; sq = m->metadata_latency_sq_sum; spin_unlock(&m->metadata_metric_lock); - CEPH_METRIC_SHOW("metadata", total, avg, min, max, sq); + CEPH_LAT_METRIC_SHOW("metadata", total, avg, min, max, sq); + + seq_printf(s, "\n"); + seq_printf(s, "item total avg_sz(bytes) min_sz(bytes) max_sz(bytes) total_sz(bytes)\n"); + seq_printf(s, "----------------------------------------------------------------------------------------\n"); + + spin_lock(&m->read_metric_lock); + total = m->total_reads; + sum_sz = m->read_size_sum; + avg_sz = total > 0 ? DIV64_U64_ROUND_CLOSEST(sum_sz, total) : 0; + min_sz = m->read_size_min; + max_sz = m->read_size_max; + spin_unlock(&m->read_metric_lock); + CEPH_SZ_METRIC_SHOW("read", total, avg_sz, min_sz, max_sz, sum_sz); + + spin_lock(&m->write_metric_lock); + total = m->total_writes; + sum_sz = m->write_size_sum; + avg_sz = total > 0 ? DIV64_U64_ROUND_CLOSEST(sum_sz, total) : 0; + min_sz = m->write_size_min; + max_sz = m->write_size_max; + spin_unlock(&m->write_metric_lock); + CEPH_SZ_METRIC_SHOW("write", total, avg_sz, min_sz, max_sz, sum_sz); seq_printf(s, "\n"); seq_printf(s, "item total miss hit\n"); |