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174 lines
4.1 KiB
174 lines
4.1 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _FS_CEPH_MDS_METRIC_H |
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#define _FS_CEPH_MDS_METRIC_H |
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#include <linux/types.h> |
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#include <linux/percpu_counter.h> |
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#include <linux/ktime.h> |
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extern bool disable_send_metrics; |
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enum ceph_metric_type { |
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CLIENT_METRIC_TYPE_CAP_INFO, |
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CLIENT_METRIC_TYPE_READ_LATENCY, |
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CLIENT_METRIC_TYPE_WRITE_LATENCY, |
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CLIENT_METRIC_TYPE_METADATA_LATENCY, |
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CLIENT_METRIC_TYPE_DENTRY_LEASE, |
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CLIENT_METRIC_TYPE_MAX = CLIENT_METRIC_TYPE_DENTRY_LEASE, |
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}; |
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/* |
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* This will always have the highest metric bit value |
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* as the last element of the array. |
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*/ |
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#define CEPHFS_METRIC_SPEC_CLIENT_SUPPORTED { \ |
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CLIENT_METRIC_TYPE_CAP_INFO, \ |
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CLIENT_METRIC_TYPE_READ_LATENCY, \ |
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CLIENT_METRIC_TYPE_WRITE_LATENCY, \ |
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CLIENT_METRIC_TYPE_METADATA_LATENCY, \ |
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CLIENT_METRIC_TYPE_DENTRY_LEASE, \ |
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\ |
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CLIENT_METRIC_TYPE_MAX, \ |
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} |
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/* metric caps header */ |
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struct ceph_metric_cap { |
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__le32 type; /* ceph metric type */ |
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__u8 ver; |
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__u8 compat; |
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__le32 data_len; /* length of sizeof(hit + mis + total) */ |
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__le64 hit; |
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__le64 mis; |
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__le64 total; |
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} __packed; |
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/* metric read latency header */ |
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struct ceph_metric_read_latency { |
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__le32 type; /* ceph metric type */ |
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__u8 ver; |
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__u8 compat; |
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__le32 data_len; /* length of sizeof(sec + nsec) */ |
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__le32 sec; |
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__le32 nsec; |
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} __packed; |
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/* metric write latency header */ |
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struct ceph_metric_write_latency { |
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__le32 type; /* ceph metric type */ |
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__u8 ver; |
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__u8 compat; |
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__le32 data_len; /* length of sizeof(sec + nsec) */ |
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__le32 sec; |
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__le32 nsec; |
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} __packed; |
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/* metric metadata latency header */ |
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struct ceph_metric_metadata_latency { |
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__le32 type; /* ceph metric type */ |
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__u8 ver; |
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__u8 compat; |
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__le32 data_len; /* length of sizeof(sec + nsec) */ |
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__le32 sec; |
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__le32 nsec; |
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} __packed; |
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/* metric dentry lease header */ |
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struct ceph_metric_dlease { |
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__le32 type; /* ceph metric type */ |
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__u8 ver; |
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__u8 compat; |
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__le32 data_len; /* length of sizeof(hit + mis + total) */ |
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__le64 hit; |
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__le64 mis; |
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__le64 total; |
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} __packed; |
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struct ceph_metric_head { |
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__le32 num; /* the number of metrics that will be sent */ |
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} __packed; |
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/* This is the global metrics */ |
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struct ceph_client_metric { |
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atomic64_t total_dentries; |
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struct percpu_counter d_lease_hit; |
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struct percpu_counter d_lease_mis; |
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atomic64_t total_caps; |
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struct percpu_counter i_caps_hit; |
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struct percpu_counter i_caps_mis; |
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spinlock_t read_latency_lock; |
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u64 total_reads; |
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ktime_t read_latency_sum; |
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ktime_t read_latency_sq_sum; |
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ktime_t read_latency_min; |
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ktime_t read_latency_max; |
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spinlock_t write_latency_lock; |
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u64 total_writes; |
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ktime_t write_latency_sum; |
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ktime_t write_latency_sq_sum; |
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ktime_t write_latency_min; |
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ktime_t write_latency_max; |
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spinlock_t metadata_latency_lock; |
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u64 total_metadatas; |
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ktime_t metadata_latency_sum; |
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ktime_t metadata_latency_sq_sum; |
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ktime_t metadata_latency_min; |
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ktime_t metadata_latency_max; |
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/* The total number of directories and files that are opened */ |
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atomic64_t opened_files; |
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/* The total number of inodes that have opened files or directories */ |
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struct percpu_counter opened_inodes; |
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struct percpu_counter total_inodes; |
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struct ceph_mds_session *session; |
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struct delayed_work delayed_work; /* delayed work */ |
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}; |
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static inline void metric_schedule_delayed(struct ceph_client_metric *m) |
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{ |
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if (disable_send_metrics) |
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return; |
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/* per second */ |
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schedule_delayed_work(&m->delayed_work, round_jiffies_relative(HZ)); |
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} |
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extern int ceph_metric_init(struct ceph_client_metric *m); |
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extern void ceph_metric_destroy(struct ceph_client_metric *m); |
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static inline void ceph_update_cap_hit(struct ceph_client_metric *m) |
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{ |
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percpu_counter_inc(&m->i_caps_hit); |
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} |
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static inline void ceph_update_cap_mis(struct ceph_client_metric *m) |
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{ |
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percpu_counter_inc(&m->i_caps_mis); |
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} |
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extern void ceph_update_read_latency(struct ceph_client_metric *m, |
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ktime_t r_start, ktime_t r_end, |
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int rc); |
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extern void ceph_update_write_latency(struct ceph_client_metric *m, |
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ktime_t r_start, ktime_t r_end, |
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int rc); |
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extern void ceph_update_metadata_latency(struct ceph_client_metric *m, |
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ktime_t r_start, ktime_t r_end, |
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int rc); |
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#endif /* _FS_CEPH_MDS_METRIC_H */
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