From: Xiubo Li <xiubli@xxxxxxxxxx> Changed in V9: - add an r_ended field to the mds request struct and use that to calculate the metric - fix some commit comments We can get the metrics from the debugfs: $ cat /sys/kernel/debug/ceph/0c93a60d-5645-4c46-8568-4c8f63db4c7f.client4267/metrics item total sum_lat(us) avg_lat(us) ----------------------------------------------------- read 13 417000 32076 write 42 131205000 3123928 metadata 104 493000 4740 item total miss hit ------------------------------------------------- d_lease 204 0 918 caps 204 213 368218 Xiubo Li (5): ceph: add global dentry lease metric support ceph: add caps perf metric for each session ceph: add global read latency metric support ceph: add global write latency metric support ceph: add global metadata perf metric support fs/ceph/acl.c | 2 +- fs/ceph/addr.c | 18 +++++++ fs/ceph/caps.c | 19 ++++++++ fs/ceph/debugfs.c | 71 ++++++++++++++++++++++++++-- fs/ceph/dir.c | 17 ++++++- fs/ceph/file.c | 26 ++++++++++ fs/ceph/inode.c | 4 +- fs/ceph/mds_client.c | 102 +++++++++++++++++++++++++++++++++++++++- fs/ceph/mds_client.h | 7 ++- fs/ceph/metric.h | 69 +++++++++++++++++++++++++++ fs/ceph/super.h | 9 ++-- fs/ceph/xattr.c | 4 +- include/linux/ceph/osd_client.h | 1 + net/ceph/osd_client.c | 2 + 14 files changed, 334 insertions(+), 17 deletions(-) create mode 100644 fs/ceph/metric.h -- 1.8.3.1
