Commit | Line | Data |
---|---|---|
a64e88da JA |
1 | #ifndef FIO_STAT_H |
2 | #define FIO_STAT_H | |
3 | ||
ec41265e | 4 | #include "iolog.h" |
a666cab8 | 5 | #include "lib/output_buffer.h" |
ec41265e | 6 | |
a64e88da | 7 | struct group_run_stats { |
6eaf09d6 SL |
8 | uint64_t max_run[DDIR_RWDIR_CNT], min_run[DDIR_RWDIR_CNT]; |
9 | uint64_t max_bw[DDIR_RWDIR_CNT], min_bw[DDIR_RWDIR_CNT]; | |
af7f87cb | 10 | uint64_t iobytes[DDIR_RWDIR_CNT]; |
6eaf09d6 | 11 | uint64_t agg[DDIR_RWDIR_CNT]; |
a64e88da | 12 | uint32_t kb_base; |
ad705bcb | 13 | uint32_t unit_base; |
a64e88da | 14 | uint32_t groupid; |
771e58be | 15 | uint32_t unified_rw_rep; |
e5021b34 | 16 | } __attribute__((packed)); |
a64e88da JA |
17 | |
18 | /* | |
19 | * How many depth levels to log | |
20 | */ | |
21 | #define FIO_IO_U_MAP_NR 7 | |
22 | #define FIO_IO_U_LAT_U_NR 10 | |
23 | #define FIO_IO_U_LAT_M_NR 12 | |
24 | ||
25 | /* | |
26 | * Aggregate clat samples to report percentile(s) of them. | |
27 | * | |
28 | * EXECUTIVE SUMMARY | |
29 | * | |
30 | * FIO_IO_U_PLAT_BITS determines the maximum statistical error on the | |
31 | * value of resulting percentiles. The error will be approximately | |
32 | * 1/2^(FIO_IO_U_PLAT_BITS+1) of the value. | |
33 | * | |
34 | * FIO_IO_U_PLAT_GROUP_NR and FIO_IO_U_PLAT_BITS determine the maximum | |
35 | * range being tracked for latency samples. The maximum value tracked | |
36 | * accurately will be 2^(GROUP_NR + PLAT_BITS -1) microseconds. | |
37 | * | |
38 | * FIO_IO_U_PLAT_GROUP_NR and FIO_IO_U_PLAT_BITS determine the memory | |
39 | * requirement of storing those aggregate counts. The memory used will | |
40 | * be (FIO_IO_U_PLAT_GROUP_NR * 2^FIO_IO_U_PLAT_BITS) * sizeof(int) | |
41 | * bytes. | |
42 | * | |
43 | * FIO_IO_U_PLAT_NR is the total number of buckets. | |
44 | * | |
45 | * DETAILS | |
46 | * | |
47 | * Suppose the clat varies from 0 to 999 (usec), the straightforward | |
48 | * method is to keep an array of (999 + 1) buckets, in which a counter | |
49 | * keeps the count of samples which fall in the bucket, e.g., | |
50 | * {[0],[1],...,[999]}. However this consumes a huge amount of space, | |
51 | * and can be avoided if an approximation is acceptable. | |
52 | * | |
53 | * One such method is to let the range of the bucket to be greater | |
54 | * than one. This method has low accuracy when the value is small. For | |
55 | * example, let the buckets be {[0,99],[100,199],...,[900,999]}, and | |
56 | * the represented value of each bucket be the mean of the range. Then | |
57 | * a value 0 has an round-off error of 49.5. To improve on this, we | |
58 | * use buckets with non-uniform ranges, while bounding the error of | |
59 | * each bucket within a ratio of the sample value. A simple example | |
60 | * would be when error_bound = 0.005, buckets are { | |
61 | * {[0],[1],...,[99]}, {[100,101],[102,103],...,[198,199]},.., | |
62 | * {[900,909],[910,919]...} }. The total range is partitioned into | |
63 | * groups with different ranges, then buckets with uniform ranges. An | |
64 | * upper bound of the error is (range_of_bucket/2)/value_of_bucket | |
65 | * | |
66 | * For better efficiency, we implement this using base two. We group | |
67 | * samples by their Most Significant Bit (MSB), extract the next M bit | |
68 | * of them as an index within the group, and discard the rest of the | |
69 | * bits. | |
70 | * | |
71 | * E.g., assume a sample 'x' whose MSB is bit n (starting from bit 0), | |
72 | * and use M bit for indexing | |
73 | * | |
74 | * | n | M bits | bit (n-M-1) ... bit 0 | | |
75 | * | |
76 | * Because x is at least 2^n, and bit 0 to bit (n-M-1) is at most | |
77 | * (2^(n-M) - 1), discarding bit 0 to (n-M-1) makes the round-off | |
78 | * error | |
79 | * | |
80 | * 2^(n-M)-1 2^(n-M) 1 | |
81 | * e <= --------- <= ------- = --- | |
82 | * 2^n 2^n 2^M | |
83 | * | |
84 | * Furthermore, we use "mean" of the range to represent the bucket, | |
85 | * the error e can be lowered by half to 1 / 2^(M+1). By using M bits | |
86 | * as the index, each group must contains 2^M buckets. | |
87 | * | |
88 | * E.g. Let M (FIO_IO_U_PLAT_BITS) be 6 | |
89 | * Error bound is 1/2^(6+1) = 0.0078125 (< 1%) | |
90 | * | |
91 | * Group MSB #discarded range of #buckets | |
92 | * error_bits value | |
93 | * ---------------------------------------------------------------- | |
94 | * 0* 0~5 0 [0,63] 64 | |
95 | * 1* 6 0 [64,127] 64 | |
96 | * 2 7 1 [128,255] 64 | |
97 | * 3 8 2 [256,511] 64 | |
98 | * 4 9 3 [512,1023] 64 | |
99 | * ... ... ... [...,...] ... | |
100 | * 18 23 17 [8838608,+inf]** 64 | |
101 | * | |
102 | * * Special cases: when n < (M-1) or when n == (M-1), in both cases, | |
103 | * the value cannot be rounded off. Use all bits of the sample as | |
104 | * index. | |
105 | * | |
106 | * ** If a sample's MSB is greater than 23, it will be counted as 23. | |
107 | */ | |
108 | ||
109 | #define FIO_IO_U_PLAT_BITS 6 | |
110 | #define FIO_IO_U_PLAT_VAL (1 << FIO_IO_U_PLAT_BITS) | |
111 | #define FIO_IO_U_PLAT_GROUP_NR 19 | |
112 | #define FIO_IO_U_PLAT_NR (FIO_IO_U_PLAT_GROUP_NR * FIO_IO_U_PLAT_VAL) | |
113 | #define FIO_IO_U_LIST_MAX_LEN 20 /* The size of the default and user-specified | |
114 | list of percentiles */ | |
115 | ||
66347cfa DE |
116 | /* |
117 | * Trim cycle count measurements | |
118 | */ | |
119 | #define MAX_NR_BLOCK_INFOS 8192 | |
120 | #define BLOCK_INFO_STATE_SHIFT 29 | |
121 | #define BLOCK_INFO_TRIMS(block_info) \ | |
122 | ((block_info) & ((1 << BLOCK_INFO_STATE_SHIFT) - 1)) | |
123 | #define BLOCK_INFO_STATE(block_info) \ | |
124 | ((block_info) >> BLOCK_INFO_STATE_SHIFT) | |
125 | #define BLOCK_INFO(state, trim_cycles) \ | |
fc8d6d05 | 126 | ((trim_cycles) | ((unsigned int) (state) << BLOCK_INFO_STATE_SHIFT)) |
66347cfa DE |
127 | #define BLOCK_INFO_SET_STATE(block_info, state) \ |
128 | BLOCK_INFO(state, BLOCK_INFO_TRIMS(block_info)) | |
129 | enum block_info_state { | |
130 | BLOCK_STATE_UNINIT, | |
131 | BLOCK_STATE_TRIMMED, | |
132 | BLOCK_STATE_WRITTEN, | |
133 | BLOCK_STATE_TRIM_FAILURE, | |
134 | BLOCK_STATE_WRITE_FAILURE, | |
135 | BLOCK_STATE_COUNT, | |
1d6d3455 | 136 | }; |
66347cfa | 137 | |
a64e88da JA |
138 | #define MAX_PATTERN_SIZE 512 |
139 | #define FIO_JOBNAME_SIZE 128 | |
4e59d0f3 | 140 | #define FIO_JOBDESC_SIZE 256 |
a64e88da JA |
141 | #define FIO_VERROR_SIZE 128 |
142 | ||
143 | struct thread_stat { | |
144 | char name[FIO_JOBNAME_SIZE]; | |
145 | char verror[FIO_VERROR_SIZE]; | |
ddcc0b69 | 146 | uint32_t error; |
2f122b13 | 147 | uint32_t thread_number; |
ddcc0b69 | 148 | uint32_t groupid; |
a64e88da | 149 | uint32_t pid; |
4e59d0f3 | 150 | char description[FIO_JOBDESC_SIZE]; |
a64e88da | 151 | uint32_t members; |
771e58be | 152 | uint32_t unified_rw_rep; |
a64e88da JA |
153 | |
154 | /* | |
155 | * bandwidth and latency stats | |
156 | */ | |
6eaf09d6 SL |
157 | struct io_stat clat_stat[DDIR_RWDIR_CNT]; /* completion latency */ |
158 | struct io_stat slat_stat[DDIR_RWDIR_CNT]; /* submission latency */ | |
159 | struct io_stat lat_stat[DDIR_RWDIR_CNT]; /* total latency */ | |
160 | struct io_stat bw_stat[DDIR_RWDIR_CNT]; /* bandwidth stats */ | |
161 | struct io_stat iops_stat[DDIR_RWDIR_CNT]; /* IOPS stats */ | |
a64e88da JA |
162 | |
163 | /* | |
164 | * fio system usage accounting | |
165 | */ | |
166 | uint64_t usr_time; | |
167 | uint64_t sys_time; | |
168 | uint64_t ctx; | |
169 | uint64_t minf, majf; | |
170 | ||
171 | /* | |
172 | * IO depth and latency stats | |
173 | */ | |
174 | uint64_t clat_percentiles; | |
435d195a | 175 | uint64_t percentile_precision; |
802ad4a8 | 176 | fio_fp64_t percentile_list[FIO_IO_U_LIST_MAX_LEN]; |
a64e88da JA |
177 | |
178 | uint32_t io_u_map[FIO_IO_U_MAP_NR]; | |
179 | uint32_t io_u_submit[FIO_IO_U_MAP_NR]; | |
180 | uint32_t io_u_complete[FIO_IO_U_MAP_NR]; | |
181 | uint32_t io_u_lat_u[FIO_IO_U_LAT_U_NR]; | |
182 | uint32_t io_u_lat_m[FIO_IO_U_LAT_M_NR]; | |
6eaf09d6 | 183 | uint32_t io_u_plat[DDIR_RWDIR_CNT][FIO_IO_U_PLAT_NR]; |
3d0ebb30 GG |
184 | uint32_t pad; |
185 | ||
de5cdfea JA |
186 | uint64_t total_io_u[DDIR_RWDIR_CNT]; |
187 | uint64_t short_io_u[DDIR_RWDIR_CNT]; | |
188 | uint64_t drop_io_u[DDIR_RWDIR_CNT]; | |
a64e88da JA |
189 | uint64_t total_submit; |
190 | uint64_t total_complete; | |
191 | ||
6eaf09d6 SL |
192 | uint64_t io_bytes[DDIR_RWDIR_CNT]; |
193 | uint64_t runtime[DDIR_RWDIR_CNT]; | |
a64e88da JA |
194 | uint64_t total_run_time; |
195 | ||
196 | /* | |
197 | * IO Error related stats | |
198 | */ | |
3d0ebb30 GG |
199 | union { |
200 | uint16_t continue_on_error; | |
11e955e3 | 201 | uint32_t pad2; |
3d0ebb30 | 202 | }; |
ddcc0b69 | 203 | uint32_t first_error; |
11e955e3 | 204 | uint64_t total_err_count; |
a64e88da | 205 | |
66347cfa DE |
206 | uint64_t nr_block_infos; |
207 | uint32_t block_infos[MAX_NR_BLOCK_INFOS]; | |
208 | ||
a64e88da | 209 | uint32_t kb_base; |
ad705bcb | 210 | uint32_t unit_base; |
3e260a46 JA |
211 | |
212 | uint32_t latency_depth; | |
11e955e3 | 213 | uint32_t pad3; |
3e260a46 JA |
214 | uint64_t latency_target; |
215 | fio_fp64_t latency_percentile; | |
216 | uint64_t latency_window; | |
16e56d25 | 217 | |
bb49c8bd VF |
218 | uint64_t ss_dur; |
219 | uint32_t ss_state; | |
220 | uint32_t ss_head; | |
bb49c8bd | 221 | |
bb49c8bd VF |
222 | fio_fp64_t ss_limit; |
223 | fio_fp64_t ss_slope; | |
224 | fio_fp64_t ss_deviation; | |
225 | fio_fp64_t ss_criterion; | |
cb84f1fa VF |
226 | |
227 | union { | |
228 | uint64_t *ss_iops_data; | |
11e955e3 | 229 | uint64_t pad4; |
cb84f1fa VF |
230 | }; |
231 | ||
232 | union { | |
233 | uint64_t *ss_bw_data; | |
11e955e3 | 234 | uint64_t pad5; |
cb84f1fa | 235 | }; |
e5021b34 | 236 | } __attribute__((packed)); |
a64e88da | 237 | |
b75a394f JA |
238 | struct jobs_eta { |
239 | uint32_t nr_running; | |
240 | uint32_t nr_ramp; | |
819db5f5 | 241 | |
b75a394f | 242 | uint32_t nr_pending; |
714e85f3 | 243 | uint32_t nr_setting_up; |
819db5f5 | 244 | |
b75a394f | 245 | uint32_t files_open; |
819db5f5 | 246 | |
90eff1c9 | 247 | uint64_t m_rate[DDIR_RWDIR_CNT], t_rate[DDIR_RWDIR_CNT]; |
d79db122 | 248 | uint32_t m_iops[DDIR_RWDIR_CNT], t_iops[DDIR_RWDIR_CNT]; |
90eff1c9 | 249 | uint64_t rate[DDIR_RWDIR_CNT]; |
6eaf09d6 | 250 | uint32_t iops[DDIR_RWDIR_CNT]; |
b75a394f JA |
251 | uint64_t elapsed_sec; |
252 | uint64_t eta_sec; | |
b7f05eb0 | 253 | uint32_t is_pow2; |
ad705bcb | 254 | uint32_t unit_base; |
1d1f45ae JA |
255 | |
256 | /* | |
257 | * Network 'copy' of run_str[] | |
258 | */ | |
259 | uint32_t nr_threads; | |
372aecb9 | 260 | uint8_t run_str[]; |
e5021b34 | 261 | } __attribute__((packed)); |
b75a394f | 262 | |
65a4d15c KC |
263 | struct io_u_plat_entry { |
264 | struct flist_head list; | |
265 | unsigned int io_u_plat[FIO_IO_U_PLAT_NR]; | |
266 | }; | |
267 | ||
e5437a07 VT |
268 | extern struct fio_mutex *stat_mutex; |
269 | ||
c5103619 | 270 | extern struct jobs_eta *get_jobs_eta(bool force, size_t *size); |
723297c9 | 271 | |
cef9175e JA |
272 | extern void stat_init(void); |
273 | extern void stat_exit(void); | |
274 | ||
0279b880 | 275 | extern struct json_object * show_thread_status(struct thread_stat *ts, struct group_run_stats *rs, struct flist_head *, struct buf_output *); |
a666cab8 | 276 | extern void show_group_stats(struct group_run_stats *rs, struct buf_output *); |
8aa89d70 | 277 | extern bool calc_thread_status(struct jobs_eta *je, int force); |
cf451d1e | 278 | extern void display_thread_status(struct jobs_eta *je); |
5b9babb7 | 279 | extern void show_run_stats(void); |
83f7b64e | 280 | extern void __show_run_stats(void); |
5ddc6707 | 281 | extern void __show_running_run_stats(void); |
b852e7cf | 282 | extern void show_running_run_stats(void); |
06464907 | 283 | extern void check_for_running_stats(void); |
fd595830 | 284 | extern void sum_thread_stats(struct thread_stat *dst, struct thread_stat *src, bool first); |
37f0c1ae JA |
285 | extern void sum_group_stats(struct group_run_stats *dst, struct group_run_stats *src); |
286 | extern void init_thread_stat(struct thread_stat *ts); | |
287 | extern void init_group_run_stat(struct group_run_stats *gs); | |
3e47bd25 | 288 | extern void eta_to_str(char *str, unsigned long eta_sec); |
8aa89d70 | 289 | extern bool calc_lat(struct io_stat *is, unsigned long *min, unsigned long *max, double *mean, double *dev); |
a269790c | 290 | extern unsigned int calc_clat_percentiles(unsigned int *io_u_plat, unsigned long nr, fio_fp64_t *plist, unsigned int **output, unsigned int *maxv, unsigned int *minv); |
e5bd1347 JA |
291 | extern void stat_calc_lat_m(struct thread_stat *ts, double *io_u_lat); |
292 | extern void stat_calc_lat_u(struct thread_stat *ts, double *io_u_lat); | |
2e33101f | 293 | extern void stat_calc_dist(unsigned int *map, unsigned long total, double *io_u_dist); |
6bb58215 | 294 | extern void reset_io_stats(struct thread_data *); |
210dd0fc JA |
295 | extern void update_rusage_stat(struct thread_data *); |
296 | extern void clear_rusage_stat(struct thread_data *); | |
2e33101f | 297 | |
cf8f852a JA |
298 | extern void add_lat_sample(struct thread_data *, enum fio_ddir, unsigned long, |
299 | unsigned int, uint64_t); | |
300 | extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long, | |
301 | unsigned int, uint64_t); | |
302 | extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long, | |
303 | unsigned int, uint64_t); | |
af2fde19 | 304 | extern void add_agg_sample(union io_sample_data, enum fio_ddir, unsigned int); |
a47591e4 JA |
305 | extern void add_iops_sample(struct thread_data *, struct io_u *, |
306 | unsigned int); | |
307 | extern void add_bw_sample(struct thread_data *, struct io_u *, | |
308 | unsigned int, unsigned long); | |
309 | extern int calc_log_samples(void); | |
cf8f852a JA |
310 | |
311 | extern struct io_log *agg_io_log[DDIR_RWDIR_CNT]; | |
312 | extern int write_bw_log; | |
313 | ||
8aa89d70 JA |
314 | static inline bool usec_to_msec(unsigned long *min, unsigned long *max, |
315 | double *mean, double *dev) | |
b29ad562 JA |
316 | { |
317 | if (*min > 1000 && *max > 1000 && *mean > 1000.0 && *dev > 1000.0) { | |
318 | *min /= 1000; | |
319 | *max /= 1000; | |
320 | *mean /= 1000.0; | |
321 | *dev /= 1000.0; | |
8aa89d70 | 322 | return true; |
b29ad562 JA |
323 | } |
324 | ||
8aa89d70 | 325 | return false; |
b29ad562 | 326 | } |
723297c9 JA |
327 | /* |
328 | * Worst level condensing would be 1:5, so allow enough room for that | |
329 | */ | |
330 | #define __THREAD_RUNSTR_SZ(nr) ((nr) * 5) | |
11155857 JA |
331 | #define THREAD_RUNSTR_SZ __THREAD_RUNSTR_SZ(thread_number) |
332 | ||
66347cfa DE |
333 | uint32_t *io_u_block_info(struct thread_data *td, struct io_u *io_u); |
334 | ||
a64e88da | 335 | #endif |