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5995a6a4 JA |
1 | #ifndef FIO_IOLOG_H |
2 | #define FIO_IOLOG_H | |
3 | ||
ec41265e | 4 | #include "rbtree.h" |
c7c6cb4c | 5 | #include "lib/ieee754.h" |
ec41265e | 6 | #include "ioengine.h" |
802ad4a8 | 7 | |
5995a6a4 JA |
8 | /* |
9 | * Use for maintaining statistics | |
10 | */ | |
11 | struct io_stat { | |
7b9f733a JA |
12 | uint64_t max_val; |
13 | uint64_t min_val; | |
14 | uint64_t samples; | |
5995a6a4 | 15 | |
802ad4a8 JA |
16 | fio_fp64_t mean; |
17 | fio_fp64_t S; | |
5995a6a4 JA |
18 | }; |
19 | ||
20 | /* | |
21 | * A single data sample | |
22 | */ | |
23 | struct io_sample { | |
24 | unsigned long time; | |
25 | unsigned long val; | |
26 | enum fio_ddir ddir; | |
27 | unsigned int bs; | |
28 | }; | |
29 | ||
30 | /* | |
31 | * Dynamically growing data sample log | |
32 | */ | |
33 | struct io_log { | |
b8bc8cba JA |
34 | /* |
35 | * Entries already logged | |
36 | */ | |
5995a6a4 JA |
37 | unsigned long nr_samples; |
38 | unsigned long max_samples; | |
39 | struct io_sample *log; | |
b8bc8cba JA |
40 | |
41 | /* | |
42 | * Windowed average, for logging single entries average over some | |
43 | * period of time. | |
44 | */ | |
45 | struct io_stat avg_window[2]; | |
46 | unsigned long avg_msec; | |
47 | unsigned long avg_last; | |
5995a6a4 JA |
48 | }; |
49 | ||
0d29de83 JA |
50 | enum { |
51 | IP_F_ONRB = 1, | |
52 | IP_F_ONLIST = 2, | |
53 | IP_F_TRIMMED = 4, | |
54 | }; | |
55 | ||
5995a6a4 JA |
56 | /* |
57 | * When logging io actions, this matches a single sent io_u | |
58 | */ | |
59 | struct io_piece { | |
60 | union { | |
61 | struct rb_node rb_node; | |
62 | struct flist_head list; | |
63 | }; | |
0d29de83 | 64 | struct flist_head trim_list; |
5995a6a4 JA |
65 | union { |
66 | int fileno; | |
67 | struct fio_file *file; | |
68 | }; | |
69 | unsigned long long offset; | |
70 | unsigned long len; | |
a917a8b3 | 71 | unsigned int flags; |
5995a6a4 JA |
72 | enum fio_ddir ddir; |
73 | union { | |
74 | unsigned long delay; | |
75 | unsigned int file_action; | |
76 | }; | |
77 | }; | |
78 | ||
79 | /* | |
80 | * Log exports | |
81 | */ | |
82 | enum file_log_act { | |
83 | FIO_LOG_ADD_FILE, | |
84 | FIO_LOG_OPEN_FILE, | |
85 | FIO_LOG_CLOSE_FILE, | |
86 | FIO_LOG_UNLINK_FILE, | |
87 | }; | |
88 | ||
89 | extern int __must_check read_iolog_get(struct thread_data *, struct io_u *); | |
90 | extern void log_io_u(struct thread_data *, struct io_u *); | |
91 | extern void log_file(struct thread_data *, struct fio_file *, enum file_log_act); | |
92 | extern int __must_check init_iolog(struct thread_data *td); | |
93 | extern void log_io_piece(struct thread_data *, struct io_u *); | |
94 | extern void queue_io_piece(struct thread_data *, struct io_piece *); | |
95 | extern void prune_io_piece_log(struct thread_data *); | |
96 | extern void write_iolog_close(struct thread_data *); | |
97 | ||
98 | /* | |
99 | * Logging | |
100 | */ | |
02af0988 JA |
101 | extern void add_lat_sample(struct thread_data *, enum fio_ddir, unsigned long, |
102 | unsigned int); | |
5995a6a4 JA |
103 | extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long, |
104 | unsigned int); | |
105 | extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long, | |
106 | unsigned int); | |
107 | extern void add_bw_sample(struct thread_data *, enum fio_ddir, unsigned int, | |
108 | struct timeval *); | |
c8eeb9df | 109 | extern void add_iops_sample(struct thread_data *, enum fio_ddir, struct timeval *); |
5995a6a4 JA |
110 | extern void init_disk_util(struct thread_data *); |
111 | extern void update_rusage_stat(struct thread_data *); | |
112 | extern void update_io_ticks(void); | |
b8bc8cba | 113 | extern void setup_log(struct io_log **, unsigned long); |
5995a6a4 JA |
114 | extern void finish_log(struct thread_data *, struct io_log *, const char *); |
115 | extern void finish_log_named(struct thread_data *, struct io_log *, const char *, const char *); | |
116 | extern void __finish_log(struct io_log *, const char *); | |
117 | extern struct io_log *agg_io_log[2]; | |
118 | extern int write_bw_log; | |
119 | extern void add_agg_sample(unsigned long, enum fio_ddir, unsigned int); | |
120 | ||
0d29de83 JA |
121 | static inline void init_ipo(struct io_piece *ipo) |
122 | { | |
123 | memset(ipo, 0, sizeof(*ipo)); | |
124 | INIT_FLIST_HEAD(&ipo->trim_list); | |
125 | } | |
126 | ||
5995a6a4 | 127 | #endif |