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gerrit-public.fairphone.software / fp2-dev / platform / external / fio / 10a6b3c67042914fe9d287027bf8792f69e84524 / . / iolog.h
blob: bb5c9b785813bd4b4dd0e18eb20c26f231872fd5 [file] [log] [blame]
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]1#ifndef FIO_IOLOG_H
2#define FIO_IOLOG_H
3
Jens Axboec7c6cb42011-10-13 14:12:40 +0200[diff] [blame]4#include "lib/ieee754.h"
Jens Axboe802ad4a2011-10-05 09:51:58 +0200[diff] [blame]5
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]6/*
7 * Use for maintaining statistics
8 */
9struct io_stat {
Jens Axboe7b9f7332011-10-03 10:06:44 +0200[diff] [blame]10 uint64_t max_val;
11 uint64_t min_val;
12 uint64_t samples;
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]13
Jens Axboe802ad4a2011-10-05 09:51:58 +0200[diff] [blame]14 fio_fp64_t mean;
15 fio_fp64_t S;
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]16};
17
18/*
19 * A single data sample
20 */
21struct io_sample {
22 unsigned long time;
23 unsigned long val;
24 enum fio_ddir ddir;
25 unsigned int bs;
26};
27
28/*
29 * Dynamically growing data sample log
30 */
31struct io_log {
Jens Axboeb8bc8cb2011-12-01 09:04:31 +0100[diff] [blame]32 /*
33 * Entries already logged
34 */
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]35 unsigned long nr_samples;
36 unsigned long max_samples;
37 struct io_sample *log;
Jens Axboeb8bc8cb2011-12-01 09:04:31 +0100[diff] [blame]38
39 /*
40 * Windowed average, for logging single entries average over some
41 * period of time.
42 */
Shaohua Li6eaf09d2012-09-14 08:49:43 +0200[diff] [blame]43 struct io_stat avg_window[DDIR_RWDIR_CNT];
Jens Axboeb8bc8cb2011-12-01 09:04:31 +0100[diff] [blame]44 unsigned long avg_msec;
45 unsigned long avg_last;
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]46};
47
Jens Axboe0d29de82010-09-01 13:54:15 +0200[diff] [blame]48enum {
49 IP_F_ONRB = 1,
50 IP_F_ONLIST = 2,
51 IP_F_TRIMMED = 4,
52};
53
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]54/*
55 * When logging io actions, this matches a single sent io_u
56 */
57struct io_piece {
58 union {
59 struct rb_node rb_node;
60 struct flist_head list;
61 };
Jens Axboe0d29de82010-09-01 13:54:15 +0200[diff] [blame]62 struct flist_head trim_list;
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]63 union {
64 int fileno;
65 struct fio_file *file;
66 };
67 unsigned long long offset;
68 unsigned long len;
Jens Axboea917a8b2010-09-02 13:23:20 +0200[diff] [blame]69 unsigned int flags;
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]70 enum fio_ddir ddir;
71 union {
72 unsigned long delay;
73 unsigned int file_action;
74 };
75};
76
77/*
78 * Log exports
79 */
80enum file_log_act {
81 FIO_LOG_ADD_FILE,
82 FIO_LOG_OPEN_FILE,
83 FIO_LOG_CLOSE_FILE,
84 FIO_LOG_UNLINK_FILE,
85};
86
87extern int __must_check read_iolog_get(struct thread_data *, struct io_u *);
88extern void log_io_u(struct thread_data *, struct io_u *);
89extern void log_file(struct thread_data *, struct fio_file *, enum file_log_act);
90extern int __must_check init_iolog(struct thread_data *td);
91extern void log_io_piece(struct thread_data *, struct io_u *);
92extern void queue_io_piece(struct thread_data *, struct io_piece *);
93extern void prune_io_piece_log(struct thread_data *);
94extern void write_iolog_close(struct thread_data *);
95
96/*
97 * Logging
98 */
Jens Axboe02af0982010-06-24 09:59:34 +0200[diff] [blame]99extern void add_lat_sample(struct thread_data *, enum fio_ddir, unsigned long,
100 unsigned int);
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]101extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long,
102 unsigned int);
103extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long,
104 unsigned int);
105extern void add_bw_sample(struct thread_data *, enum fio_ddir, unsigned int,
106 struct timeval *);
Jens Axboec8eeb9d2011-10-05 14:02:22 +0200[diff] [blame]107extern void add_iops_sample(struct thread_data *, enum fio_ddir, struct timeval *);
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]108extern void init_disk_util(struct thread_data *);
109extern void update_rusage_stat(struct thread_data *);
Jens Axboeb8bc8cb2011-12-01 09:04:31 +0100[diff] [blame]110extern void setup_log(struct io_log **, unsigned long);
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]111extern void finish_log(struct thread_data *, struct io_log *, const char *);
112extern void finish_log_named(struct thread_data *, struct io_log *, const char *, const char *);
113extern void __finish_log(struct io_log *, const char *);
Shaohua Li6eaf09d2012-09-14 08:49:43 +0200[diff] [blame]114extern struct io_log *agg_io_log[DDIR_RWDIR_CNT];
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]115extern int write_bw_log;
116extern void add_agg_sample(unsigned long, enum fio_ddir, unsigned int);
117
Jens Axboe0d29de82010-09-01 13:54:15 +0200[diff] [blame]118static inline void init_ipo(struct io_piece *ipo)
119{
120 memset(ipo, 0, sizeof(*ipo));
121 INIT_FLIST_HEAD(&ipo->trim_list);
122}
123
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]124#endif