genfio: Splitting gen_template in 2 parts
[fio.git] / iolog.h
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1#ifndef FIO_IOLOG_H
2#define FIO_IOLOG_H
3
05775438 4#include "lib/rbtree.h"
c7c6cb4c 5#include "lib/ieee754.h"
836fcc0f 6#include "flist.h"
ec41265e 7#include "ioengine.h"
802ad4a8 8
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9/*
10 * Use for maintaining statistics
11 */
12struct io_stat {
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13 uint64_t max_val;
14 uint64_t min_val;
15 uint64_t samples;
5995a6a4 16
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17 fio_fp64_t mean;
18 fio_fp64_t S;
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19};
20
21/*
22 * A single data sample
23 */
24struct io_sample {
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25 uint64_t time;
26 uint64_t val;
27 uint32_t ddir;
28 uint32_t bs;
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29};
30
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31enum {
32 IO_LOG_TYPE_LAT = 1,
33 IO_LOG_TYPE_CLAT,
34 IO_LOG_TYPE_SLAT,
35 IO_LOG_TYPE_BW,
36 IO_LOG_TYPE_IOPS,
37};
38
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39/*
40 * Dynamically growing data sample log
41 */
42struct io_log {
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43 /*
44 * Entries already logged
45 */
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46 unsigned long nr_samples;
47 unsigned long max_samples;
48 struct io_sample *log;
b8bc8cba 49
1b42725f 50 unsigned int log_type;
ea51b956 51
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52 /*
53 * Windowed average, for logging single entries average over some
54 * period of time.
55 */
6eaf09d6 56 struct io_stat avg_window[DDIR_RWDIR_CNT];
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57 unsigned long avg_msec;
58 unsigned long avg_last;
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59};
60
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61enum {
62 IP_F_ONRB = 1,
63 IP_F_ONLIST = 2,
64 IP_F_TRIMMED = 4,
65};
66
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67/*
68 * When logging io actions, this matches a single sent io_u
69 */
70struct io_piece {
71 union {
72 struct rb_node rb_node;
73 struct flist_head list;
74 };
0d29de83 75 struct flist_head trim_list;
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76 union {
77 int fileno;
78 struct fio_file *file;
79 };
80 unsigned long long offset;
81 unsigned long len;
a917a8b3 82 unsigned int flags;
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83 enum fio_ddir ddir;
84 union {
85 unsigned long delay;
86 unsigned int file_action;
87 };
88};
89
90/*
91 * Log exports
92 */
93enum file_log_act {
94 FIO_LOG_ADD_FILE,
95 FIO_LOG_OPEN_FILE,
96 FIO_LOG_CLOSE_FILE,
97 FIO_LOG_UNLINK_FILE,
98};
99
8062f527 100struct io_u;
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101extern int __must_check read_iolog_get(struct thread_data *, struct io_u *);
102extern void log_io_u(struct thread_data *, struct io_u *);
103extern void log_file(struct thread_data *, struct fio_file *, enum file_log_act);
104extern int __must_check init_iolog(struct thread_data *td);
105extern void log_io_piece(struct thread_data *, struct io_u *);
106extern void queue_io_piece(struct thread_data *, struct io_piece *);
107extern void prune_io_piece_log(struct thread_data *);
108extern void write_iolog_close(struct thread_data *);
109
110/*
111 * Logging
112 */
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113extern void add_lat_sample(struct thread_data *, enum fio_ddir, unsigned long,
114 unsigned int);
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115extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long,
116 unsigned int);
117extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long,
118 unsigned int);
119extern void add_bw_sample(struct thread_data *, enum fio_ddir, unsigned int,
120 struct timeval *);
c8eeb9df 121extern void add_iops_sample(struct thread_data *, enum fio_ddir, struct timeval *);
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122extern void init_disk_util(struct thread_data *);
123extern void update_rusage_stat(struct thread_data *);
ea51b956 124extern void setup_log(struct io_log **, unsigned long, int);
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125extern void finish_log(struct thread_data *, struct io_log *, const char *);
126extern void finish_log_named(struct thread_data *, struct io_log *, const char *, const char *);
127extern void __finish_log(struct io_log *, const char *);
6eaf09d6 128extern struct io_log *agg_io_log[DDIR_RWDIR_CNT];
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129extern int write_bw_log;
130extern void add_agg_sample(unsigned long, enum fio_ddir, unsigned int);
131
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132static inline void init_ipo(struct io_piece *ipo)
133{
134 memset(ipo, 0, sizeof(*ipo));
135 INIT_FLIST_HEAD(&ipo->trim_list);
136}
137
5995a6a4 138#endif