8 #include <sys/resource.h>
23 unsigned long max_val;
24 unsigned long min_val;
25 unsigned long samples;
35 unsigned long nr_samples;
36 unsigned long max_samples;
37 struct io_sample *log;
41 struct list_head list;
42 unsigned long long offset;
52 #ifdef FIO_HAVE_LIBAIO
55 #ifdef FIO_HAVE_POSIXAIO
62 struct timeval start_time;
63 struct timeval issue_time;
67 unsigned long long offset;
76 struct list_head list;
79 #define FIO_HDR_MAGIC 0xf00baaef
87 struct verify_header {
88 unsigned int fio_magic;
90 unsigned int verify_type;
92 char md5_digest[MD5_HASH_WORDS * 4];
97 struct group_run_stats {
98 unsigned long long max_run[2], min_run[2];
99 unsigned long long max_bw[2], min_bw[2];
100 unsigned long long io_kb[2];
101 unsigned long long agg[2];
118 size_t orig_buffer_size;
119 volatile int terminate;
120 volatile int runstate;
121 volatile int old_runstate;
125 unsigned int sequential;
129 unsigned int odirect;
130 unsigned int thinktime;
131 unsigned int fsync_blocks;
132 unsigned int start_delay;
133 unsigned int timeout;
134 unsigned int io_engine;
135 unsigned int create_file;
136 unsigned int overwrite;
137 unsigned int invalidate_cache;
138 unsigned int bw_avg_time;
139 unsigned int create_serialize;
140 unsigned int create_fsync;
141 unsigned int end_fsync;
143 unsigned long long file_size;
144 unsigned long long real_file_size;
145 unsigned long long file_offset;
146 unsigned long long zone_size;
147 unsigned long long zone_skip;
148 unsigned int sync_io;
149 unsigned int mem_type;
151 unsigned int stonewall;
152 unsigned int numjobs;
153 unsigned int use_thread;
154 unsigned int iodepth;
155 os_cpu_mask_t cpumask;
158 unsigned int read_iolog;
159 unsigned int write_iolog;
160 unsigned int rwmixcycle;
161 unsigned int rwmixread;
172 struct drand48_data bsrange_state;
173 struct drand48_data verify_state;
178 char io_engine_name[16];
179 int (*io_prep)(struct thread_data *, struct io_u *);
180 int (*io_queue)(struct thread_data *, struct io_u *);
181 int (*io_getevents)(struct thread_data *, int, int, struct timespec *);
182 struct io_u *(*io_event)(struct thread_data *, int);
183 int (*io_cancel)(struct thread_data *, struct io_u *);
184 void (*io_cleanup)(struct thread_data *);
185 int (*io_sync)(struct thread_data *);
187 unsigned int cur_depth;
188 struct list_head io_u_freelist;
189 struct list_head io_u_busylist;
192 unsigned int ratemin;
193 unsigned int ratecycle;
194 unsigned long rate_usec_cycle;
195 long rate_pending_usleep;
196 unsigned long rate_bytes;
197 struct timeval lastrate;
199 unsigned long runtime[2]; /* msec */
200 unsigned long long io_size;
201 unsigned long long total_io_size;
203 unsigned long long io_blocks[2];
204 unsigned long long io_bytes[2];
205 unsigned long long zone_bytes;
206 unsigned long long this_io_bytes[2];
207 unsigned long long last_pos;
210 struct drand48_data random_state;
211 unsigned long *file_map;
212 unsigned int num_maps;
215 * bandwidth and latency stats
217 struct io_stat clat_stat[2]; /* completion latency */
218 struct io_stat slat_stat[2]; /* submission latency */
219 struct io_stat bw_stat[2]; /* bandwidth stats */
221 unsigned long long stat_io_bytes[2];
222 struct timeval stat_sample_time[2];
224 struct io_log *slat_log;
225 struct io_log *clat_log;
226 struct io_log *bw_log;
228 struct timeval start; /* start of this loop */
229 struct timeval epoch; /* time job was started */
231 struct rusage ru_start;
232 struct rusage ru_end;
233 unsigned long usr_time;
234 unsigned long sys_time;
237 unsigned int do_disk_util;
238 unsigned int override_sync;
240 struct drand48_data rwmix_state;
241 struct timeval rwmix_switch;
245 * Pre-run and post-run shell
250 struct list_head io_hist_list;
251 struct list_head io_log_list;
254 #define td_verror(td, err) \
258 snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, error=%s", __FILE__, __LINE__, strerror(e)); \
261 extern struct io_u *__get_io_u(struct thread_data *);
262 extern void put_io_u(struct thread_data *, struct io_u *);
264 extern int rate_quit;
265 extern int write_lat_log;
266 extern int write_bw_log;
267 extern int exitall_on_terminate;
268 extern int thread_number;
272 extern struct thread_data *threads;
280 * What type of allocation to use for io buffers
283 MEM_MALLOC, /* ordinary malloc */
284 MEM_SHM, /* use shared memory segments */
285 MEM_MMAP, /* use anonynomous mmap */
289 * The type of object we are working on
299 FIO_MMAPIO = 1 << 1 | FIO_SYNCIO,
301 FIO_POSIXAIO = 1 << 3,
303 FIO_SPLICEIO = 1 << 5 | FIO_SYNCIO,
306 #define td_read(td) ((td)->ddir == DDIR_READ)
307 #define td_write(td) ((td)->ddir == DDIR_WRITE)
308 #define td_rw(td) ((td)->iomix != 0)
310 #define BLOCKS_PER_MAP (8 * sizeof(long))
311 #define TO_MAP_BLOCK(td, b) ((b) - ((td)->file_offset / (td)->min_bs))
312 #define RAND_MAP_IDX(td, b) (TO_MAP_BLOCK(td, b) / BLOCKS_PER_MAP)
313 #define RAND_MAP_BIT(td, b) (TO_MAP_BLOCK(td, b) & (BLOCKS_PER_MAP - 1))
315 #define MAX_JOBS (1024)
317 struct disk_util_stat {
320 unsigned long long sectors[2];
323 unsigned time_in_queue;
327 struct list_head list;
333 struct disk_util_stat dus;
334 struct disk_util_stat last_dus;
340 struct io_completion_data {
343 int error; /* output */
344 unsigned long bytes_done[2]; /* output */
347 #define DISK_UTIL_MSEC (250)
350 #define min(a, b) ((a) < (b) ? (a) : (b))
356 extern int read_iolog_get(struct thread_data *, struct io_u *);
357 extern void write_iolog_put(struct thread_data *, struct io_u *);
358 extern int init_iolog(struct thread_data *td);
359 extern void log_io_piece(struct thread_data *, struct io_u *);
360 extern void prune_io_piece_log(struct thread_data *);
361 extern void write_iolog_close(struct thread_data *);
366 extern void add_clat_sample(struct thread_data *, int, unsigned long);
367 extern void add_slat_sample(struct thread_data *, int, unsigned long);
368 extern void add_bw_sample(struct thread_data *, int);
369 extern void show_run_stats(void);
370 extern void init_disk_util(struct thread_data *);
371 extern void update_rusage_stat(struct thread_data *);
372 extern void update_io_ticks(void);
373 extern void disk_util_timer_arm(void);
374 extern void setup_log(struct io_log **);
375 extern void finish_log(struct thread_data *, struct io_log *, const char *);
376 extern int setup_rate(struct thread_data *);
381 extern unsigned long utime_since(struct timeval *, struct timeval *);
382 extern unsigned long mtime_since(struct timeval *, struct timeval *);
383 extern unsigned long mtime_since_now(struct timeval *);
384 extern unsigned long time_since_now(struct timeval *);
385 extern void usec_sleep(struct thread_data *, unsigned long);
386 extern void rate_throttle(struct thread_data *, unsigned long, unsigned int);
391 extern int parse_options(int, char **);
392 extern int init_random_state(struct thread_data *);