mirror of
https://github.com/torvalds/linux.git
synced 2024-11-23 20:51:44 +00:00
70c948206f
Add a new "r_ended" field to struct ceph_mds_request and use that to maintain the average latency of MDS requests. URL: https://tracker.ceph.com/issues/43215 Signed-off-by: Xiubo Li <xiubli@redhat.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _FS_CEPH_MDS_METRIC_H
|
|
#define _FS_CEPH_MDS_METRIC_H
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/percpu_counter.h>
|
|
#include <linux/ktime.h>
|
|
|
|
/* This is the global metrics */
|
|
struct ceph_client_metric {
|
|
atomic64_t total_dentries;
|
|
struct percpu_counter d_lease_hit;
|
|
struct percpu_counter d_lease_mis;
|
|
|
|
struct percpu_counter i_caps_hit;
|
|
struct percpu_counter i_caps_mis;
|
|
|
|
spinlock_t read_latency_lock;
|
|
u64 total_reads;
|
|
ktime_t read_latency_sum;
|
|
ktime_t read_latency_sq_sum;
|
|
ktime_t read_latency_min;
|
|
ktime_t read_latency_max;
|
|
|
|
spinlock_t write_latency_lock;
|
|
u64 total_writes;
|
|
ktime_t write_latency_sum;
|
|
ktime_t write_latency_sq_sum;
|
|
ktime_t write_latency_min;
|
|
ktime_t write_latency_max;
|
|
|
|
spinlock_t metadata_latency_lock;
|
|
u64 total_metadatas;
|
|
ktime_t metadata_latency_sum;
|
|
ktime_t metadata_latency_sq_sum;
|
|
ktime_t metadata_latency_min;
|
|
ktime_t metadata_latency_max;
|
|
};
|
|
|
|
extern int ceph_metric_init(struct ceph_client_metric *m);
|
|
extern void ceph_metric_destroy(struct ceph_client_metric *m);
|
|
|
|
static inline void ceph_update_cap_hit(struct ceph_client_metric *m)
|
|
{
|
|
percpu_counter_inc(&m->i_caps_hit);
|
|
}
|
|
|
|
static inline void ceph_update_cap_mis(struct ceph_client_metric *m)
|
|
{
|
|
percpu_counter_inc(&m->i_caps_mis);
|
|
}
|
|
|
|
extern void ceph_update_read_latency(struct ceph_client_metric *m,
|
|
ktime_t r_start, ktime_t r_end,
|
|
int rc);
|
|
extern void ceph_update_write_latency(struct ceph_client_metric *m,
|
|
ktime_t r_start, ktime_t r_end,
|
|
int rc);
|
|
extern void ceph_update_metadata_latency(struct ceph_client_metric *m,
|
|
ktime_t r_start, ktime_t r_end,
|
|
int rc);
|
|
#endif /* _FS_CEPH_MDS_METRIC_H */
|