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smalloc: alloc failure cleanups
[fio.git] / iolog.h
CommitLineData
5995a6a4
JA		 1#ifndef FIO_IOLOG_H
2#define FIO_IOLOG_H
3
c7c6cb4c 4#include "lib/ieee754.h"
802ad4a8 5
5995a6a4
JA		 6/*
7 * Use for maintaining statistics
8 */
9struct io_stat {
7b9f733a
JA		 10 uint64_t max_val;
11 uint64_t min_val;
12 uint64_t samples;
5995a6a4 13
802ad4a8
JA		 14 fio_fp64_t mean;
15 fio_fp64_t S;
5995a6a4
JA		 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 {
b8bc8cba
JA		 32 /*
33 * Entries already logged
34 */
5995a6a4
JA		 35 unsigned long nr_samples;
36 unsigned long max_samples;
37 struct io_sample *log;
b8bc8cba
JA		 38
39 /*
40 * Windowed average, for logging single entries average over some
41 * period of time.
42 */
6eaf09d6 43 struct io_stat avg_window[DDIR_RWDIR_CNT];
b8bc8cba
JA		 44 unsigned long avg_msec;
45 unsigned long avg_last;
5995a6a4
JA		 46};
47
0d29de83
JA		 48enum {
49 IP_F_ONRB = 1,
50 IP_F_ONLIST = 2,
51 IP_F_TRIMMED = 4,
52};
53
5995a6a4
JA		 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 };
0d29de83 62 struct flist_head trim_list;
5995a6a4
JA		 63 union {
64 int fileno;
65 struct fio_file *file;
66 };
67 unsigned long long offset;
68 unsigned long len;
a917a8b3 69 unsigned int flags;
5995a6a4
JA		 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 */
02af0988
JA		 99extern void add_lat_sample(struct thread_data *, enum fio_ddir, unsigned long,
100 unsigned int);
5995a6a4
JA		 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 *);
c8eeb9df 107extern void add_iops_sample(struct thread_data *, enum fio_ddir, struct timeval *);
5995a6a4
JA		 108extern void init_disk_util(struct thread_data *);
109extern void update_rusage_stat(struct thread_data *);
b8bc8cba 110extern void setup_log(struct io_log **, unsigned long);
5995a6a4
JA		 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 *);
6eaf09d6 114extern struct io_log *agg_io_log[DDIR_RWDIR_CNT];
5995a6a4
JA		 115extern int write_bw_log;
116extern void add_agg_sample(unsigned long, enum fio_ddir, unsigned int);
117
0d29de83
JA		 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
5995a6a4 124#endif
fio - Flexible IO Tester