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gerrit-public.fairphone.software / platform / external / fio / 0deba507cd01601fcce4fb861b9aa6d4971dfd1a / . / iolog.h
blob: 18d3c6c532fe9b1295c1e8ef33899e603f8f7b31 [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 Axboeec412652012-03-08 12:37:31 +0100[diff] [blame]4#include "rbtree.h"
Jens Axboec7c6cb42011-10-13 14:12:40 +0200[diff] [blame]5#include "lib/ieee754.h"
Jens Axboeec412652012-03-08 12:37:31 +0100[diff] [blame]6#include "ioengine.h"
Jens Axboe802ad4a2011-10-05 09:51:58 +0200[diff] [blame]7
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]8/*
9 * Use for maintaining statistics
10 */
11struct io_stat {
Jens Axboe7b9f7332011-10-03 10:06:44 +0200[diff] [blame]12 uint64_t max_val;
13 uint64_t min_val;
14 uint64_t samples;
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]15
Jens Axboe802ad4a2011-10-05 09:51:58 +0200[diff] [blame]16 fio_fp64_t mean;
17 fio_fp64_t S;
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]18};
19
20/*
21 * A single data sample
22 */
23struct io_sample {
Jens Axboe1b427252012-03-14 15:03:03 +0100[diff] [blame]24 uint64_t time;
25 uint64_t val;
26 uint32_t ddir;
27 uint32_t bs;
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]28};
29
Jens Axboeea51b952012-03-14 11:39:13 +0100[diff] [blame]30enum {
31 IO_LOG_TYPE_LAT = 1,
32 IO_LOG_TYPE_CLAT,
33 IO_LOG_TYPE_SLAT,
34 IO_LOG_TYPE_BW,
35 IO_LOG_TYPE_IOPS,
36};
37
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]38/*
39 * Dynamically growing data sample log
40 */
41struct io_log {
Jens Axboeb8bc8cb2011-12-01 09:04:31 +0100[diff] [blame]42 /*
43 * Entries already logged
44 */
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]45 unsigned long nr_samples;
46 unsigned long max_samples;
47 struct io_sample *log;
Jens Axboeb8bc8cb2011-12-01 09:04:31 +0100[diff] [blame]48
Jens Axboe1b427252012-03-14 15:03:03 +0100[diff] [blame]49 unsigned int log_type;
Jens Axboeea51b952012-03-14 11:39:13 +0100[diff] [blame]50
Jens Axboeb8bc8cb2011-12-01 09:04:31 +0100[diff] [blame]51 /*
52 * Windowed average, for logging single entries average over some
53 * period of time.
54 */
55 struct io_stat avg_window[2];
56 unsigned long avg_msec;
57 unsigned long avg_last;
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]58};
59
Jens Axboe0d29de82010-09-01 13:54:15 +0200[diff] [blame]60enum {
61 IP_F_ONRB = 1,
62 IP_F_ONLIST = 2,
63 IP_F_TRIMMED = 4,
64};
65
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]66/*
67 * When logging io actions, this matches a single sent io_u
68 */
69struct io_piece {
70 union {
71 struct rb_node rb_node;
72 struct flist_head list;
73 };
Jens Axboe0d29de82010-09-01 13:54:15 +0200[diff] [blame]74 struct flist_head trim_list;
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]75 union {
76 int fileno;
77 struct fio_file *file;
78 };
79 unsigned long long offset;
80 unsigned long len;
Jens Axboea917a8b2010-09-02 13:23:20 +0200[diff] [blame]81 unsigned int flags;
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]82 enum fio_ddir ddir;
83 union {
84 unsigned long delay;
85 unsigned int file_action;
86 };
87};
88
89/*
90 * Log exports
91 */
92enum file_log_act {
93 FIO_LOG_ADD_FILE,
94 FIO_LOG_OPEN_FILE,
95 FIO_LOG_CLOSE_FILE,
96 FIO_LOG_UNLINK_FILE,
97};
98
99extern int __must_check read_iolog_get(struct thread_data *, struct io_u *);
100extern void log_io_u(struct thread_data *, struct io_u *);
101extern void log_file(struct thread_data *, struct fio_file *, enum file_log_act);
102extern int __must_check init_iolog(struct thread_data *td);
103extern void log_io_piece(struct thread_data *, struct io_u *);
104extern void queue_io_piece(struct thread_data *, struct io_piece *);
105extern void prune_io_piece_log(struct thread_data *);
106extern void write_iolog_close(struct thread_data *);
107
108/*
109 * Logging
110 */
Jens Axboe02af0982010-06-24 09:59:34 +0200[diff] [blame]111extern void add_lat_sample(struct thread_data *, enum fio_ddir, unsigned long,
112 unsigned int);
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]113extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long,
114 unsigned int);
115extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long,
116 unsigned int);
117extern void add_bw_sample(struct thread_data *, enum fio_ddir, unsigned int,
118 struct timeval *);
Jens Axboec8eeb9d2011-10-05 14:02:22 +0200[diff] [blame]119extern void add_iops_sample(struct thread_data *, enum fio_ddir, struct timeval *);
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]120extern void init_disk_util(struct thread_data *);
121extern void update_rusage_stat(struct thread_data *);
122extern void update_io_ticks(void);
Jens Axboeea51b952012-03-14 11:39:13 +0100[diff] [blame]123extern void setup_log(struct io_log **, unsigned long, int);
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]124extern void finish_log(struct thread_data *, struct io_log *, const char *);
125extern void finish_log_named(struct thread_data *, struct io_log *, const char *, const char *);
126extern void __finish_log(struct io_log *, const char *);
127extern struct io_log *agg_io_log[2];
128extern int write_bw_log;
129extern void add_agg_sample(unsigned long, enum fio_ddir, unsigned int);
130
Jens Axboe0d29de82010-09-01 13:54:15 +0200[diff] [blame]131static inline void init_ipo(struct io_piece *ipo)
132{
133 memset(ipo, 0, sizeof(*ipo));
134 INIT_FLIST_HEAD(&ipo->trim_list);
135}
136
Jens Axboe5995a6a2009-06-03 08:53:28 +0200[diff] [blame]137#endif