Gitiles
Code Review Sign In
gerrit-public.fairphone.software / fp2-dev / platform / external / fio / e8040c67de743a6e6e18d3dcfd413bd04953da6d / . / iolog.h
blob: 3d140a20070dd1638f9144f53b0604a97a34982c [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 Axboe7fb6d452013-04-10 20:48:31 +0200[diff] [blame]4#include "lib/rbtree.h"
Jens Axboec7c6cb42011-10-13 14:12:40 +0200[diff] [blame]5#include "lib/ieee754.h"
Jens Axboe802ad4a2011-10-05 09:51:58 +0200[diff] [blame]6
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]7/*
8 * Use for maintaining statistics
9 */
10struct io_stat {
Jens Axboe7b9f7332011-10-03 10:06:44 +0200[diff] [blame]11 uint64_t max_val;
12 uint64_t min_val;
13 uint64_t samples;
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]14
Jens Axboe802ad4a2011-10-05 09:51:58 +0200[diff] [blame]15 fio_fp64_t mean;
16 fio_fp64_t S;
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]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 {
Jens Axboeb8bc8cb2011-12-01 09:04:31 +0100[diff] [blame]33 /*
34 * Entries already logged
35 */
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]36 unsigned long nr_samples;
37 unsigned long max_samples;
38 struct io_sample *log;
Jens Axboeb8bc8cb2011-12-01 09:04:31 +0100[diff] [blame]39
40 /*
41 * Windowed average, for logging single entries average over some
42 * period of time.
43 */
Shaohua Li6eaf09d2012-09-14 08:49:43 +0200[diff] [blame]44 struct io_stat avg_window[DDIR_RWDIR_CNT];
Jens Axboeb8bc8cb2011-12-01 09:04:31 +0100[diff] [blame]45 unsigned long avg_msec;
46 unsigned long avg_last;
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]47};
48
Jens Axboe0d29de82010-09-01 13:54:15 +0200[diff] [blame]49enum {
50 IP_F_ONRB = 1,
51 IP_F_ONLIST = 2,
52 IP_F_TRIMMED = 4,
53};
54
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]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 };
Jens Axboe0d29de82010-09-01 13:54:15 +0200[diff] [blame]63 struct flist_head trim_list;
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]64 union {
65 int fileno;
66 struct fio_file *file;
67 };
68 unsigned long long offset;
69 unsigned long len;
Jens Axboea917a8b2010-09-02 13:23:20 +0200[diff] [blame]70 unsigned int flags;
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]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
Jens Axboe8062f522013-04-10 15:01:42 +0200[diff] [blame]88struct io_u;
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]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 */
Jens Axboe02af0982010-06-24 09:59:34 +0200[diff] [blame]101extern void add_lat_sample(struct thread_data *, enum fio_ddir, unsigned long,
102 unsigned int);
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]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 *);
Jens Axboec8eeb9d2011-10-05 14:02:22 +0200[diff] [blame]109extern void add_iops_sample(struct thread_data *, enum fio_ddir, struct timeval *);
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]110extern void init_disk_util(struct thread_data *);
111extern void update_rusage_stat(struct thread_data *);
Jens Axboeb8bc8cb2011-12-01 09:04:31 +0100[diff] [blame]112extern void setup_log(struct io_log **, unsigned long);
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]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 *);
Shaohua Li6eaf09d2012-09-14 08:49:43 +0200[diff] [blame]116extern struct io_log *agg_io_log[DDIR_RWDIR_CNT];
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]117extern int write_bw_log;
118extern void add_agg_sample(unsigned long, enum fio_ddir, unsigned int);
119
Jens Axboe0d29de82010-09-01 13:54:15 +0200[diff] [blame]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
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]126#endif