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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 | ||
ae588852 JA |
31 | struct io_sample_offset { |
32 | struct io_sample s; | |
33 | uint64_t offset; | |
34 | }; | |
35 | ||
ea51b956 JA |
36 | enum { |
37 | IO_LOG_TYPE_LAT = 1, | |
38 | IO_LOG_TYPE_CLAT, | |
39 | IO_LOG_TYPE_SLAT, | |
40 | IO_LOG_TYPE_BW, | |
41 | IO_LOG_TYPE_IOPS, | |
42 | }; | |
43 | ||
5995a6a4 JA |
44 | /* |
45 | * Dynamically growing data sample log | |
46 | */ | |
47 | struct io_log { | |
b8bc8cba JA |
48 | /* |
49 | * Entries already logged | |
50 | */ | |
5995a6a4 JA |
51 | unsigned long nr_samples; |
52 | unsigned long max_samples; | |
ae588852 | 53 | void *log; |
b8bc8cba | 54 | |
1b42725f | 55 | unsigned int log_type; |
ea51b956 | 56 | |
3c568239 JA |
57 | /* |
58 | * If we fail extending the log, stop collecting more entries. | |
59 | */ | |
60 | unsigned int disabled; | |
61 | ||
ae588852 JA |
62 | /* |
63 | * Log offsets | |
64 | */ | |
65 | unsigned int log_offset; | |
66 | ||
b8bc8cba JA |
67 | /* |
68 | * Windowed average, for logging single entries average over some | |
69 | * period of time. | |
70 | */ | |
6eaf09d6 | 71 | struct io_stat avg_window[DDIR_RWDIR_CNT]; |
b8bc8cba JA |
72 | unsigned long avg_msec; |
73 | unsigned long avg_last; | |
5995a6a4 JA |
74 | }; |
75 | ||
ae588852 JA |
76 | static inline size_t __log_entry_sz(int log_offset) |
77 | { | |
78 | if (log_offset) | |
79 | return sizeof(struct io_sample_offset); | |
80 | else | |
81 | return sizeof(struct io_sample); | |
82 | } | |
83 | ||
84 | static inline size_t log_entry_sz(struct io_log *log) | |
85 | { | |
86 | return __log_entry_sz(log->log_offset); | |
87 | } | |
88 | ||
89 | static inline struct io_sample *__get_sample(void *samples, int log_offset, | |
90 | uint64_t sample) | |
91 | { | |
92 | return samples + sample * __log_entry_sz(log_offset); | |
93 | } | |
94 | ||
95 | static inline struct io_sample *get_sample(struct io_log *iolog, | |
96 | uint64_t sample) | |
97 | { | |
98 | return __get_sample(iolog->log, iolog->log_offset, sample); | |
99 | } | |
100 | ||
0d29de83 JA |
101 | enum { |
102 | IP_F_ONRB = 1, | |
103 | IP_F_ONLIST = 2, | |
104 | IP_F_TRIMMED = 4, | |
f9401285 | 105 | IP_F_IN_FLIGHT = 8, |
0d29de83 JA |
106 | }; |
107 | ||
5995a6a4 JA |
108 | /* |
109 | * When logging io actions, this matches a single sent io_u | |
110 | */ | |
111 | struct io_piece { | |
112 | union { | |
113 | struct rb_node rb_node; | |
114 | struct flist_head list; | |
115 | }; | |
0d29de83 | 116 | struct flist_head trim_list; |
5995a6a4 JA |
117 | union { |
118 | int fileno; | |
119 | struct fio_file *file; | |
120 | }; | |
121 | unsigned long long offset; | |
da0a7bd2 | 122 | unsigned short numberio; |
5995a6a4 | 123 | unsigned long len; |
a917a8b3 | 124 | unsigned int flags; |
5995a6a4 JA |
125 | enum fio_ddir ddir; |
126 | union { | |
127 | unsigned long delay; | |
128 | unsigned int file_action; | |
129 | }; | |
130 | }; | |
131 | ||
132 | /* | |
133 | * Log exports | |
134 | */ | |
135 | enum file_log_act { | |
136 | FIO_LOG_ADD_FILE, | |
137 | FIO_LOG_OPEN_FILE, | |
138 | FIO_LOG_CLOSE_FILE, | |
139 | FIO_LOG_UNLINK_FILE, | |
140 | }; | |
141 | ||
8062f527 | 142 | struct io_u; |
5995a6a4 JA |
143 | extern int __must_check read_iolog_get(struct thread_data *, struct io_u *); |
144 | extern void log_io_u(struct thread_data *, struct io_u *); | |
145 | extern void log_file(struct thread_data *, struct fio_file *, enum file_log_act); | |
146 | extern int __must_check init_iolog(struct thread_data *td); | |
147 | extern void log_io_piece(struct thread_data *, struct io_u *); | |
890b6656 JA |
148 | extern void unlog_io_piece(struct thread_data *, struct io_u *); |
149 | extern void trim_io_piece(struct thread_data *, struct io_u *); | |
5995a6a4 JA |
150 | extern void queue_io_piece(struct thread_data *, struct io_piece *); |
151 | extern void prune_io_piece_log(struct thread_data *); | |
152 | extern void write_iolog_close(struct thread_data *); | |
153 | ||
154 | /* | |
155 | * Logging | |
156 | */ | |
99007068 | 157 | extern void finalize_logs(struct thread_data *td); |
02af0988 | 158 | extern void add_lat_sample(struct thread_data *, enum fio_ddir, unsigned long, |
ae588852 | 159 | unsigned int, uint64_t); |
5995a6a4 | 160 | extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long, |
ae588852 | 161 | unsigned int, uint64_t); |
5995a6a4 | 162 | extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long, |
ae588852 | 163 | unsigned int, uint64_t); |
5995a6a4 JA |
164 | extern void add_bw_sample(struct thread_data *, enum fio_ddir, unsigned int, |
165 | struct timeval *); | |
9b7e600d EV |
166 | extern void add_iops_sample(struct thread_data *, enum fio_ddir, unsigned int, |
167 | struct timeval *); | |
5995a6a4 JA |
168 | extern void init_disk_util(struct thread_data *); |
169 | extern void update_rusage_stat(struct thread_data *); | |
ae588852 | 170 | extern void setup_log(struct io_log **, unsigned long, int, int); |
5995a6a4 | 171 | extern void __finish_log(struct io_log *, const char *); |
6eaf09d6 | 172 | extern struct io_log *agg_io_log[DDIR_RWDIR_CNT]; |
5995a6a4 JA |
173 | extern int write_bw_log; |
174 | extern void add_agg_sample(unsigned long, enum fio_ddir, unsigned int); | |
905e3d4f | 175 | extern void fio_writeout_logs(struct thread_data *); |
5995a6a4 | 176 | |
0d29de83 JA |
177 | static inline void init_ipo(struct io_piece *ipo) |
178 | { | |
179 | memset(ipo, 0, sizeof(*ipo)); | |
180 | INIT_FLIST_HEAD(&ipo->trim_list); | |
181 | } | |
182 | ||
5995a6a4 | 183 | #endif |