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Move rbtree to lib/
[fio.git] / iolog.h
CommitLineData
5995a6a4
JA		 1#ifndef FIO_IOLOG_H
2#define FIO_IOLOG_H
3
7fb6d453 4#include "lib/rbtree.h"
c7c6cb4c 5#include "lib/ieee754.h"
802ad4a8 6
5995a6a4
JA		 7/*
8 * Use for maintaining statistics
9 */
10struct io_stat {
7b9f733a
JA		 11 uint64_t max_val;
12 uint64_t min_val;
13 uint64_t samples;
5995a6a4 14
802ad4a8
JA		 15 fio_fp64_t mean;
16 fio_fp64_t S;
5995a6a4
JA		 17};
18
19/*
20 * A single data sample
21 */
22struct io_sample {
23 unsigned long time;
24 unsigned long val;
25 enum fio_ddir ddir;
26 unsigned int bs;
27};
28
29/*
30 * Dynamically growing data sample log
31 */
32struct io_log {
b8bc8cba
JA		 33 /*
34 * Entries already logged
35 */
5995a6a4
JA		 36 unsigned long nr_samples;
37 unsigned long max_samples;
38 struct io_sample *log;
b8bc8cba
JA		 39
40 /*
41 * Windowed average, for logging single entries average over some
42 * period of time.
43 */
6eaf09d6 44 struct io_stat avg_window[DDIR_RWDIR_CNT];
b8bc8cba
JA		 45 unsigned long avg_msec;
46 unsigned long avg_last;
5995a6a4
JA		 47};
48
0d29de83
JA		 49enum {
50 IP_F_ONRB = 1,
51 IP_F_ONLIST = 2,
52 IP_F_TRIMMED = 4,
53};
54
5995a6a4
JA		 55/*
56 * When logging io actions, this matches a single sent io_u
57 */
58struct io_piece {
59 union {
60 struct rb_node rb_node;
61 struct flist_head list;
62 };
0d29de83 63 struct flist_head trim_list;
5995a6a4
JA		 64 union {
65 int fileno;
66 struct fio_file *file;
67 };
68 unsigned long long offset;
69 unsigned long len;
a917a8b3 70 unsigned int flags;
5995a6a4
JA		 71 enum fio_ddir ddir;
72 union {
73 unsigned long delay;
74 unsigned int file_action;
75 };
76};
77
78/*
79 * Log exports
80 */
81enum file_log_act {
82 FIO_LOG_ADD_FILE,
83 FIO_LOG_OPEN_FILE,
84 FIO_LOG_CLOSE_FILE,
85 FIO_LOG_UNLINK_FILE,
86};
87
8062f527 88struct io_u;
5995a6a4
JA		 89extern int __must_check read_iolog_get(struct thread_data *, struct io_u *);
90extern void log_io_u(struct thread_data *, struct io_u *);
91extern void log_file(struct thread_data *, struct fio_file *, enum file_log_act);
92extern int __must_check init_iolog(struct thread_data *td);
93extern void log_io_piece(struct thread_data *, struct io_u *);
94extern void queue_io_piece(struct thread_data *, struct io_piece *);
95extern void prune_io_piece_log(struct thread_data *);
96extern void write_iolog_close(struct thread_data *);
97
98/*
99 * Logging
100 */
02af0988
JA		 101extern void add_lat_sample(struct thread_data *, enum fio_ddir, unsigned long,
102 unsigned int);
5995a6a4
JA		 103extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long,
104 unsigned int);
105extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long,
106 unsigned int);
107extern void add_bw_sample(struct thread_data *, enum fio_ddir, unsigned int,
108 struct timeval *);
c8eeb9df 109extern void add_iops_sample(struct thread_data *, enum fio_ddir, struct timeval *);
5995a6a4
JA		 110extern void init_disk_util(struct thread_data *);
111extern void update_rusage_stat(struct thread_data *);
b8bc8cba 112extern void setup_log(struct io_log **, unsigned long);
5995a6a4
JA		 113extern void finish_log(struct thread_data *, struct io_log *, const char *);
114extern void finish_log_named(struct thread_data *, struct io_log *, const char *, const char *);
115extern void __finish_log(struct io_log *, const char *);
6eaf09d6 116extern struct io_log *agg_io_log[DDIR_RWDIR_CNT];
5995a6a4
JA		 117extern int write_bw_log;
118extern void add_agg_sample(unsigned long, enum fio_ddir, unsigned int);
119
0d29de83
JA		 120static inline void init_ipo(struct io_piece *ipo)
121{
122 memset(ipo, 0, sizeof(*ipo));
123 INIT_FLIST_HEAD(&ipo->trim_list);
124}
125
5995a6a4 126#endif
fio - Flexible IO Tester