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ebac4655 JA |
1 | #ifndef FIO_H |
2 | #define FIO_H | |
3 | ||
4 | #include <sched.h> | |
5 | #include <limits.h> | |
6 | #include <pthread.h> | |
7 | #include <sys/time.h> | |
8 | #include <sys/resource.h> | |
3c39a379 JA |
9 | #include <errno.h> |
10 | #include <stdlib.h> | |
11 | #include <stdio.h> | |
6d6f031f | 12 | #include <unistd.h> |
ebac4655 JA |
13 | |
14 | #include "list.h" | |
15 | #include "md5.h" | |
16 | #include "crc32.h" | |
17 | #include "arch.h" | |
18 | #include "os.h" | |
19 | ||
20 | struct io_stat { | |
21 | unsigned long val; | |
22 | unsigned long val_sq; | |
23 | unsigned long max_val; | |
24 | unsigned long min_val; | |
25 | unsigned long samples; | |
26 | }; | |
27 | ||
28 | struct io_sample { | |
29 | unsigned long time; | |
30 | unsigned long val; | |
31 | unsigned int ddir; | |
32 | }; | |
33 | ||
34 | struct io_log { | |
35 | unsigned long nr_samples; | |
36 | unsigned long max_samples; | |
37 | struct io_sample *log; | |
38 | }; | |
39 | ||
40 | struct io_piece { | |
41 | struct list_head list; | |
42 | unsigned long long offset; | |
43 | unsigned int len; | |
aea47d44 | 44 | int ddir; |
ebac4655 JA |
45 | }; |
46 | ||
47 | /* | |
48 | * The io unit | |
49 | */ | |
50 | struct io_u { | |
51 | union { | |
52 | #ifdef FIO_HAVE_LIBAIO | |
53 | struct iocb iocb; | |
54 | #endif | |
55 | #ifdef FIO_HAVE_POSIXAIO | |
56 | struct aiocb aiocb; | |
57 | #endif | |
58 | #ifdef FIO_HAVE_SGIO | |
59 | struct sg_io_hdr hdr; | |
60 | #endif | |
61 | }; | |
62 | struct timeval start_time; | |
63 | struct timeval issue_time; | |
64 | ||
65 | char *buf; | |
66 | unsigned int buflen; | |
67 | unsigned long long offset; | |
b1ff3403 | 68 | unsigned int index; |
ebac4655 JA |
69 | |
70 | unsigned int resid; | |
71 | unsigned int error; | |
72 | ||
73 | unsigned char seen; | |
74 | unsigned char ddir; | |
75 | ||
76 | struct list_head list; | |
77 | }; | |
78 | ||
79 | #define FIO_HDR_MAGIC 0xf00baaef | |
80 | ||
81 | enum { | |
82 | VERIFY_NONE = 0, | |
83 | VERIFY_MD5, | |
84 | VERIFY_CRC32, | |
85 | }; | |
86 | ||
87 | struct verify_header { | |
88 | unsigned int fio_magic; | |
89 | unsigned int len; | |
90 | unsigned int verify_type; | |
91 | union { | |
92 | char md5_digest[MD5_HASH_WORDS * 4]; | |
93 | unsigned long crc32; | |
94 | }; | |
95 | }; | |
96 | ||
97 | struct group_run_stats { | |
9104f874 JA |
98 | unsigned long long max_run[2], min_run[2]; |
99 | unsigned long long max_bw[2], min_bw[2]; | |
e9b2a3fa | 100 | unsigned long long io_kb[2]; |
9104f874 | 101 | unsigned long long agg[2]; |
ebac4655 JA |
102 | }; |
103 | ||
e9c047a0 JA |
104 | enum fio_ddir { |
105 | DDIR_READ = 0, | |
106 | DDIR_WRITE, | |
107 | }; | |
108 | ||
109 | /* | |
110 | * What type of allocation to use for io buffers | |
111 | */ | |
112 | enum fio_memtype { | |
113 | MEM_MALLOC = 0, /* ordinary malloc */ | |
114 | MEM_SHM, /* use shared memory segments */ | |
115 | MEM_MMAP, /* use anonynomous mmap */ | |
116 | }; | |
117 | ||
118 | /* | |
119 | * The type of object we are working on | |
120 | */ | |
121 | enum fio_filetype { | |
122 | FIO_TYPE_FILE = 1, | |
123 | FIO_TYPE_BD, | |
124 | FIO_TYPE_CHAR, | |
125 | }; | |
126 | ||
127 | enum fio_iotype { | |
128 | FIO_SYNCIO = 1 << 0, | |
129 | FIO_MMAPIO = 1 << 1 | FIO_SYNCIO, | |
130 | FIO_LIBAIO = 1 << 2, | |
131 | FIO_POSIXAIO = 1 << 3, | |
132 | FIO_SGIO = 1 << 4, | |
133 | FIO_SPLICEIO = 1 << 5 | FIO_SYNCIO, | |
134 | }; | |
135 | ||
136 | /* | |
137 | * This describes a single thread/process executing a fio job. | |
138 | */ | |
ebac4655 | 139 | struct thread_data { |
e9c047a0 JA |
140 | char name[32]; |
141 | char *file_name; | |
ef899b63 | 142 | char *directory; |
ebac4655 JA |
143 | char verror[80]; |
144 | pthread_t thread; | |
145 | int thread_number; | |
146 | int groupid; | |
e9c047a0 | 147 | enum fio_filetype filetype; |
ebac4655 JA |
148 | int error; |
149 | int fd; | |
150 | void *mmap; | |
151 | pid_t pid; | |
152 | char *orig_buffer; | |
153 | size_t orig_buffer_size; | |
154 | volatile int terminate; | |
155 | volatile int runstate; | |
156 | volatile int old_runstate; | |
e9c047a0 | 157 | enum fio_ddir ddir; |
3d60d1ed | 158 | unsigned int iomix; |
ebac4655 | 159 | unsigned int ioprio; |
e9c047a0 JA |
160 | |
161 | unsigned char sequential; | |
162 | unsigned char odirect; | |
163 | unsigned char create_file; | |
164 | unsigned char invalidate_cache; | |
165 | unsigned char create_serialize; | |
166 | unsigned char create_fsync; | |
167 | unsigned char end_fsync; | |
168 | unsigned char sync_io; | |
169 | unsigned char verify; | |
170 | unsigned char use_thread; | |
171 | unsigned char do_disk_util; | |
172 | unsigned char override_sync; | |
173 | ||
ebac4655 JA |
174 | unsigned int bs; |
175 | unsigned int min_bs; | |
176 | unsigned int max_bs; | |
ebac4655 JA |
177 | unsigned int thinktime; |
178 | unsigned int fsync_blocks; | |
179 | unsigned int start_delay; | |
180 | unsigned int timeout; | |
e9c047a0 | 181 | enum fio_iotype io_engine; |
ebac4655 | 182 | unsigned int overwrite; |
ebac4655 | 183 | unsigned int bw_avg_time; |
ebac4655 JA |
184 | unsigned int loops; |
185 | unsigned long long file_size; | |
838a3cd3 | 186 | unsigned long long real_file_size; |
ebac4655 | 187 | unsigned long long file_offset; |
20dc95c4 JA |
188 | unsigned long long zone_size; |
189 | unsigned long long zone_skip; | |
e9c047a0 | 190 | enum fio_memtype mem_type; |
ebac4655 JA |
191 | unsigned int stonewall; |
192 | unsigned int numjobs; | |
ebac4655 JA |
193 | unsigned int iodepth; |
194 | os_cpu_mask_t cpumask; | |
eba09dd3 | 195 | unsigned int jobnum; |
aea47d44 | 196 | unsigned int iolog; |
843a7413 JA |
197 | unsigned int read_iolog; |
198 | unsigned int write_iolog; | |
a6ccc7be JA |
199 | unsigned int rwmixcycle; |
200 | unsigned int rwmixread; | |
b6f4d880 | 201 | unsigned int nice; |
aea47d44 | 202 | |
ef899b63 | 203 | char *iolog_file; |
843a7413 JA |
204 | void *iolog_buf; |
205 | FILE *iolog_f; | |
ebac4655 | 206 | |
da86774e | 207 | char *sysfs_root; |
da86774e JA |
208 | char *ioscheduler; |
209 | ||
6dfd46b9 JA |
210 | os_random_state_t bsrange_state; |
211 | os_random_state_t verify_state; | |
ebac4655 JA |
212 | |
213 | int shm_id; | |
214 | ||
e9c047a0 JA |
215 | /* |
216 | * IO engine hooks, contains everything needed to submit an io_u | |
217 | * to any of the available IO engines. | |
218 | */ | |
ebac4655 JA |
219 | void *io_data; |
220 | char io_engine_name[16]; | |
221 | int (*io_prep)(struct thread_data *, struct io_u *); | |
222 | int (*io_queue)(struct thread_data *, struct io_u *); | |
223 | int (*io_getevents)(struct thread_data *, int, int, struct timespec *); | |
224 | struct io_u *(*io_event)(struct thread_data *, int); | |
225 | int (*io_cancel)(struct thread_data *, struct io_u *); | |
226 | void (*io_cleanup)(struct thread_data *); | |
227 | int (*io_sync)(struct thread_data *); | |
228 | ||
e9c047a0 JA |
229 | /* |
230 | * Current IO depth and list of free and busy io_u's. | |
231 | */ | |
ebac4655 JA |
232 | unsigned int cur_depth; |
233 | struct list_head io_u_freelist; | |
234 | struct list_head io_u_busylist; | |
235 | ||
e9c047a0 JA |
236 | /* |
237 | * Rate state | |
238 | */ | |
ebac4655 JA |
239 | unsigned int rate; |
240 | unsigned int ratemin; | |
241 | unsigned int ratecycle; | |
242 | unsigned long rate_usec_cycle; | |
243 | long rate_pending_usleep; | |
244 | unsigned long rate_bytes; | |
245 | struct timeval lastrate; | |
246 | ||
247 | unsigned long runtime[2]; /* msec */ | |
248 | unsigned long long io_size; | |
249 | unsigned long long total_io_size; | |
250 | ||
9104f874 JA |
251 | unsigned long long io_blocks[2]; |
252 | unsigned long long io_bytes[2]; | |
253 | unsigned long long zone_bytes; | |
254 | unsigned long long this_io_bytes[2]; | |
20dc95c4 | 255 | unsigned long long last_pos; |
bbfd6b00 | 256 | volatile int mutex; |
ebac4655 | 257 | |
e9c047a0 JA |
258 | /* |
259 | * State for random io, a bitmap of blocks done vs not done | |
260 | */ | |
6dfd46b9 | 261 | os_random_state_t random_state; |
ebac4655 JA |
262 | unsigned long *file_map; |
263 | unsigned int num_maps; | |
264 | ||
265 | /* | |
266 | * bandwidth and latency stats | |
267 | */ | |
268 | struct io_stat clat_stat[2]; /* completion latency */ | |
269 | struct io_stat slat_stat[2]; /* submission latency */ | |
270 | struct io_stat bw_stat[2]; /* bandwidth stats */ | |
271 | ||
9104f874 | 272 | unsigned long long stat_io_bytes[2]; |
ebac4655 JA |
273 | struct timeval stat_sample_time[2]; |
274 | ||
275 | struct io_log *slat_log; | |
276 | struct io_log *clat_log; | |
277 | struct io_log *bw_log; | |
278 | ||
279 | struct timeval start; /* start of this loop */ | |
280 | struct timeval epoch; /* time job was started */ | |
281 | ||
e9c047a0 JA |
282 | /* |
283 | * fio system usage accounting | |
284 | */ | |
ebac4655 JA |
285 | struct rusage ru_start; |
286 | struct rusage ru_end; | |
287 | unsigned long usr_time; | |
288 | unsigned long sys_time; | |
289 | unsigned long ctx; | |
290 | ||
e9c047a0 JA |
291 | /* |
292 | * read/write mixed workload state | |
293 | */ | |
6dfd46b9 | 294 | os_random_state_t rwmix_state; |
a6ccc7be | 295 | struct timeval rwmix_switch; |
e9c047a0 | 296 | enum fio_ddir rwmix_ddir; |
a6ccc7be | 297 | |
4e0ba8af JA |
298 | /* |
299 | * Pre-run and post-run shell | |
300 | */ | |
301 | char *exec_prerun; | |
302 | char *exec_postrun; | |
303 | ||
e9c047a0 JA |
304 | /* |
305 | * IO historic logs | |
306 | */ | |
ebac4655 | 307 | struct list_head io_hist_list; |
aea47d44 | 308 | struct list_head io_log_list; |
ebac4655 JA |
309 | }; |
310 | ||
311 | #define td_verror(td, err) \ | |
312 | do { \ | |
313 | int e = (err); \ | |
314 | (td)->error = e; \ | |
315 | snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, error=%s", __FILE__, __LINE__, strerror(e)); \ | |
316 | } while (0) | |
317 | ||
b1ff3403 JA |
318 | extern struct io_u *__get_io_u(struct thread_data *); |
319 | extern void put_io_u(struct thread_data *, struct io_u *); | |
ebac4655 JA |
320 | |
321 | extern int rate_quit; | |
322 | extern int write_lat_log; | |
323 | extern int write_bw_log; | |
324 | extern int exitall_on_terminate; | |
325 | extern int thread_number; | |
326 | extern int shm_id; | |
327 | extern int groupid; | |
328 | ||
329 | extern struct thread_data *threads; | |
330 | ||
ebac4655 JA |
331 | #define td_read(td) ((td)->ddir == DDIR_READ) |
332 | #define td_write(td) ((td)->ddir == DDIR_WRITE) | |
3d60d1ed | 333 | #define td_rw(td) ((td)->iomix != 0) |
ebac4655 JA |
334 | |
335 | #define BLOCKS_PER_MAP (8 * sizeof(long)) | |
336 | #define TO_MAP_BLOCK(td, b) ((b) - ((td)->file_offset / (td)->min_bs)) | |
337 | #define RAND_MAP_IDX(td, b) (TO_MAP_BLOCK(td, b) / BLOCKS_PER_MAP) | |
338 | #define RAND_MAP_BIT(td, b) (TO_MAP_BLOCK(td, b) & (BLOCKS_PER_MAP - 1)) | |
339 | ||
340 | #define MAX_JOBS (1024) | |
341 | ||
342 | struct disk_util_stat { | |
343 | unsigned ios[2]; | |
344 | unsigned merges[2]; | |
345 | unsigned long long sectors[2]; | |
346 | unsigned ticks[2]; | |
347 | unsigned io_ticks; | |
348 | unsigned time_in_queue; | |
349 | }; | |
350 | ||
351 | struct disk_util { | |
352 | struct list_head list; | |
353 | ||
354 | char *name; | |
355 | char path[256]; | |
356 | dev_t dev; | |
357 | ||
358 | struct disk_util_stat dus; | |
359 | struct disk_util_stat last_dus; | |
360 | ||
361 | unsigned long msec; | |
362 | struct timeval time; | |
363 | }; | |
364 | ||
365 | struct io_completion_data { | |
366 | int nr; /* input */ | |
367 | ||
368 | int error; /* output */ | |
369 | unsigned long bytes_done[2]; /* output */ | |
370 | }; | |
371 | ||
372 | #define DISK_UTIL_MSEC (250) | |
373 | ||
6a0106a0 JA |
374 | #ifndef min |
375 | #define min(a, b) ((a) < (b) ? (a) : (b)) | |
376 | #endif | |
377 | ||
6796209a JA |
378 | /* |
379 | * Log exports | |
380 | */ | |
381 | extern int read_iolog_get(struct thread_data *, struct io_u *); | |
382 | extern void write_iolog_put(struct thread_data *, struct io_u *); | |
383 | extern int init_iolog(struct thread_data *td); | |
384 | extern void log_io_piece(struct thread_data *, struct io_u *); | |
385 | extern void prune_io_piece_log(struct thread_data *); | |
386 | extern void write_iolog_close(struct thread_data *); | |
387 | ||
388 | /* | |
389 | * Logging | |
390 | */ | |
391 | extern void add_clat_sample(struct thread_data *, int, unsigned long); | |
392 | extern void add_slat_sample(struct thread_data *, int, unsigned long); | |
393 | extern void add_bw_sample(struct thread_data *, int); | |
394 | extern void show_run_stats(void); | |
395 | extern void init_disk_util(struct thread_data *); | |
396 | extern void update_rusage_stat(struct thread_data *); | |
397 | extern void update_io_ticks(void); | |
398 | extern void disk_util_timer_arm(void); | |
8914a9d8 JA |
399 | extern void setup_log(struct io_log **); |
400 | extern void finish_log(struct thread_data *, struct io_log *, const char *); | |
401 | extern int setup_rate(struct thread_data *); | |
6796209a JA |
402 | |
403 | /* | |
404 | * Time functions | |
405 | */ | |
406 | extern unsigned long utime_since(struct timeval *, struct timeval *); | |
407 | extern unsigned long mtime_since(struct timeval *, struct timeval *); | |
408 | extern unsigned long mtime_since_now(struct timeval *); | |
409 | extern unsigned long time_since_now(struct timeval *); | |
410 | extern void usec_sleep(struct thread_data *, unsigned long); | |
411 | extern void rate_throttle(struct thread_data *, unsigned long, unsigned int); | |
412 | ||
8914a9d8 JA |
413 | /* |
414 | * Init functions | |
415 | */ | |
416 | extern int parse_options(int, char **); | |
417 | extern int init_random_state(struct thread_data *); | |
418 | ||
bbfd6b00 JA |
419 | /* |
420 | * This is a pretty crappy semaphore implementation, but with the use that fio | |
421 | * has (just signalling start/go conditions), it doesn't have to be better. | |
422 | * Naturally this would not work for any type of contended semaphore or | |
423 | * for real locking. | |
424 | */ | |
425 | static inline void fio_sem_init(volatile int volatile *sem, int val) | |
426 | { | |
427 | *sem = val; | |
428 | } | |
429 | ||
430 | static inline void fio_sem_down(volatile int volatile *sem) | |
431 | { | |
432 | while (*sem == 0) | |
433 | usleep(10000); | |
434 | ||
435 | (*sem)--; | |
436 | } | |
437 | ||
438 | static inline void fio_sem_up(volatile int volatile *sem) | |
439 | { | |
440 | (*sem)++; | |
441 | } | |
442 | ||
ebac4655 | 443 | #endif |