diff mbox series

[v2,2/2] ceph: add a new metric to keep track of remote object copies

Message ID 20211104123147.1632-3-lhenriques@suse.de (mailing list archive)
State New, archived
Headers show
Series ceph: metrics for remote object copies | expand

Commit Message

Luis Henriques Nov. 4, 2021, 12:31 p.m. UTC 
This patch adds latency and size metrics for remote object copies
operations ("copyfrom").  For now, these metrics will be available on the
client only, they won't be sent to the MDS.

Cc: Patrick Donnelly <pdonnell@redhat.com>
Signed-off-by: Luís Henriques <lhenriques@suse.de>
---
 fs/ceph/debugfs.c | 3 ++-
 fs/ceph/file.c    | 4 ++++
 fs/ceph/metric.h  | 8 ++++++++
 3 files changed, 14 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/fs/ceph/debugfs.c b/fs/ceph/debugfs.c
index e04ae1098431..3cf7c9c1085b 100644
--- a/fs/ceph/debugfs.c
+++ b/fs/ceph/debugfs.c
@@ -167,7 +167,8 @@  static int metrics_file_show(struct seq_file *s, void *p)
 static const char * const metric_str[] = {
 	"read",
 	"write",
-	"metadata"
+	"metadata",
+	"copyfrom"
 };
 static int metrics_latency_show(struct seq_file *s, void *p)
 {
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 6c77f203e7b5..220a41831b46 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -2304,6 +2304,10 @@  static ssize_t ceph_do_objects_copy(struct ceph_inode_info *src_ci, u64 *src_off
 		else {
 			ceph_osdc_start_request(osdc, req, false);
 			ret = ceph_osdc_wait_request(osdc, req);
+			ceph_update_copyfrom_metrics(&fsc->mdsc->metric,
+						     req->r_start_latency,
+						     req->r_end_latency,
+						     object_size, ret);
 			ceph_osdc_put_request(req);
 		}
 		if (ret) {
diff --git a/fs/ceph/metric.h b/fs/ceph/metric.h
index e67fc997760b..bb45608181e7 100644
--- a/fs/ceph/metric.h
+++ b/fs/ceph/metric.h
@@ -129,6 +129,7 @@  enum metric_type {
 	METRIC_READ,
 	METRIC_WRITE,
 	METRIC_METADATA,
+	METRIC_COPYFROM,
 	METRIC_MAX
 };
 
@@ -214,4 +215,11 @@  static inline void ceph_update_metadata_metrics(struct ceph_client_metric *m,
 	ceph_update_metrics(&m->metric[METRIC_METADATA],
 			    r_start, r_end, 0, rc);
 }
+static inline void ceph_update_copyfrom_metrics(struct ceph_client_metric *m,
+						ktime_t r_start, ktime_t r_end,
+						unsigned int size, int rc)
+{
+	ceph_update_metrics(&m->metric[METRIC_COPYFROM],
+			    r_start, r_end, size, rc);
+}
 #endif /* _FS_CEPH_MDS_METRIC_H */