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5995a6a4 JA |
1 | #ifndef FIO_IOLOG_H |
2 | #define FIO_IOLOG_H | |
3 | ||
05775438 | 4 | #include "lib/rbtree.h" |
c7c6cb4c | 5 | #include "lib/ieee754.h" |
836fcc0f | 6 | #include "flist.h" |
ec41265e | 7 | #include "ioengine.h" |
802ad4a8 | 8 | |
5995a6a4 JA |
9 | /* |
10 | * Use for maintaining statistics | |
11 | */ | |
12 | struct io_stat { | |
7b9f733a JA |
13 | uint64_t max_val; |
14 | uint64_t min_val; | |
15 | uint64_t samples; | |
5995a6a4 | 16 | |
802ad4a8 JA |
17 | fio_fp64_t mean; |
18 | fio_fp64_t S; | |
5995a6a4 JA |
19 | }; |
20 | ||
21 | /* | |
22 | * A single data sample | |
23 | */ | |
24 | struct io_sample { | |
1b42725f JA |
25 | uint64_t time; |
26 | uint64_t val; | |
27 | uint32_t ddir; | |
28 | uint32_t bs; | |
5995a6a4 JA |
29 | }; |
30 | ||
ea51b956 JA |
31 | enum { |
32 | IO_LOG_TYPE_LAT = 1, | |
33 | IO_LOG_TYPE_CLAT, | |
34 | IO_LOG_TYPE_SLAT, | |
35 | IO_LOG_TYPE_BW, | |
36 | IO_LOG_TYPE_IOPS, | |
37 | }; | |
38 | ||
5995a6a4 JA |
39 | /* |
40 | * Dynamically growing data sample log | |
41 | */ | |
42 | struct io_log { | |
b8bc8cba JA |
43 | /* |
44 | * Entries already logged | |
45 | */ | |
5995a6a4 JA |
46 | unsigned long nr_samples; |
47 | unsigned long max_samples; | |
48 | struct io_sample *log; | |
b8bc8cba | 49 | |
1b42725f | 50 | unsigned int log_type; |
ea51b956 | 51 | |
3c568239 JA |
52 | /* |
53 | * If we fail extending the log, stop collecting more entries. | |
54 | */ | |
55 | unsigned int disabled; | |
56 | ||
b8bc8cba JA |
57 | /* |
58 | * Windowed average, for logging single entries average over some | |
59 | * period of time. | |
60 | */ | |
6eaf09d6 | 61 | struct io_stat avg_window[DDIR_RWDIR_CNT]; |
b8bc8cba JA |
62 | unsigned long avg_msec; |
63 | unsigned long avg_last; | |
5995a6a4 JA |
64 | }; |
65 | ||
0d29de83 JA |
66 | enum { |
67 | IP_F_ONRB = 1, | |
68 | IP_F_ONLIST = 2, | |
69 | IP_F_TRIMMED = 4, | |
70 | }; | |
71 | ||
5995a6a4 JA |
72 | /* |
73 | * When logging io actions, this matches a single sent io_u | |
74 | */ | |
75 | struct io_piece { | |
76 | union { | |
77 | struct rb_node rb_node; | |
78 | struct flist_head list; | |
79 | }; | |
0d29de83 | 80 | struct flist_head trim_list; |
5995a6a4 JA |
81 | union { |
82 | int fileno; | |
83 | struct fio_file *file; | |
84 | }; | |
85 | unsigned long long offset; | |
86 | unsigned long len; | |
a917a8b3 | 87 | unsigned int flags; |
5995a6a4 JA |
88 | enum fio_ddir ddir; |
89 | union { | |
90 | unsigned long delay; | |
91 | unsigned int file_action; | |
92 | }; | |
93 | }; | |
94 | ||
95 | /* | |
96 | * Log exports | |
97 | */ | |
98 | enum file_log_act { | |
99 | FIO_LOG_ADD_FILE, | |
100 | FIO_LOG_OPEN_FILE, | |
101 | FIO_LOG_CLOSE_FILE, | |
102 | FIO_LOG_UNLINK_FILE, | |
103 | }; | |
104 | ||
8062f527 | 105 | struct io_u; |
5995a6a4 JA |
106 | extern int __must_check read_iolog_get(struct thread_data *, struct io_u *); |
107 | extern void log_io_u(struct thread_data *, struct io_u *); | |
108 | extern void log_file(struct thread_data *, struct fio_file *, enum file_log_act); | |
109 | extern int __must_check init_iolog(struct thread_data *td); | |
110 | extern void log_io_piece(struct thread_data *, struct io_u *); | |
111 | extern void queue_io_piece(struct thread_data *, struct io_piece *); | |
112 | extern void prune_io_piece_log(struct thread_data *); | |
113 | extern void write_iolog_close(struct thread_data *); | |
114 | ||
115 | /* | |
116 | * Logging | |
117 | */ | |
02af0988 JA |
118 | extern void add_lat_sample(struct thread_data *, enum fio_ddir, unsigned long, |
119 | unsigned int); | |
5995a6a4 JA |
120 | extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long, |
121 | unsigned int); | |
122 | extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long, | |
123 | unsigned int); | |
124 | extern void add_bw_sample(struct thread_data *, enum fio_ddir, unsigned int, | |
125 | struct timeval *); | |
9b7e600d EV |
126 | extern void add_iops_sample(struct thread_data *, enum fio_ddir, unsigned int, |
127 | struct timeval *); | |
5995a6a4 JA |
128 | extern void init_disk_util(struct thread_data *); |
129 | extern void update_rusage_stat(struct thread_data *); | |
ea51b956 | 130 | extern void setup_log(struct io_log **, unsigned long, int); |
5995a6a4 JA |
131 | extern void finish_log(struct thread_data *, struct io_log *, const char *); |
132 | extern void finish_log_named(struct thread_data *, struct io_log *, const char *, const char *); | |
133 | extern void __finish_log(struct io_log *, const char *); | |
6eaf09d6 | 134 | extern struct io_log *agg_io_log[DDIR_RWDIR_CNT]; |
5995a6a4 JA |
135 | extern int write_bw_log; |
136 | extern void add_agg_sample(unsigned long, enum fio_ddir, unsigned int); | |
137 | ||
0d29de83 JA |
138 | static inline void init_ipo(struct io_piece *ipo) |
139 | { | |
140 | memset(ipo, 0, sizeof(*ipo)); | |
141 | INIT_FLIST_HEAD(&ipo->trim_list); | |
142 | } | |
143 | ||
5995a6a4 | 144 | #endif |