8 #include <sys/resource.h>
20 unsigned long max_val;
21 unsigned long min_val;
22 unsigned long samples;
32 unsigned long nr_samples;
33 unsigned long max_samples;
34 struct io_sample *log;
38 struct list_head list;
39 unsigned long long offset;
49 #ifdef FIO_HAVE_LIBAIO
52 #ifdef FIO_HAVE_POSIXAIO
59 struct timeval start_time;
60 struct timeval issue_time;
64 unsigned long long offset;
73 struct list_head list;
76 #define FIO_HDR_MAGIC 0xf00baaef
84 struct verify_header {
85 unsigned int fio_magic;
87 unsigned int verify_type;
89 char md5_digest[MD5_HASH_WORDS * 4];
94 struct group_run_stats {
95 unsigned long long max_run[2], min_run[2];
96 unsigned long long max_bw[2], min_bw[2];
97 unsigned long long io_kb[2];
98 unsigned long long agg[2];
114 size_t orig_buffer_size;
115 volatile int terminate;
116 volatile int runstate;
117 volatile int old_runstate;
121 unsigned int sequential;
125 unsigned int odirect;
126 unsigned int thinktime;
127 unsigned int fsync_blocks;
128 unsigned int start_delay;
129 unsigned int timeout;
130 unsigned int io_engine;
131 unsigned int create_file;
132 unsigned int overwrite;
133 unsigned int invalidate_cache;
134 unsigned int bw_avg_time;
135 unsigned int create_serialize;
136 unsigned int create_fsync;
137 unsigned int end_fsync;
139 unsigned long long file_size;
140 unsigned long long real_file_size;
141 unsigned long long file_offset;
142 unsigned long long zone_size;
143 unsigned long long zone_skip;
144 unsigned int sync_io;
145 unsigned int mem_type;
147 unsigned int stonewall;
148 unsigned int numjobs;
149 unsigned int use_thread;
150 unsigned int iodepth;
151 os_cpu_mask_t cpumask;
154 unsigned int read_iolog;
155 unsigned int write_iolog;
156 unsigned int rwmixcycle;
157 unsigned int rwmixread;
168 struct drand48_data bsrange_state;
169 struct drand48_data verify_state;
174 char io_engine_name[16];
175 int (*io_prep)(struct thread_data *, struct io_u *);
176 int (*io_queue)(struct thread_data *, struct io_u *);
177 int (*io_getevents)(struct thread_data *, int, int, struct timespec *);
178 struct io_u *(*io_event)(struct thread_data *, int);
179 int (*io_cancel)(struct thread_data *, struct io_u *);
180 void (*io_cleanup)(struct thread_data *);
181 int (*io_sync)(struct thread_data *);
183 unsigned int cur_depth;
184 struct list_head io_u_freelist;
185 struct list_head io_u_busylist;
188 unsigned int ratemin;
189 unsigned int ratecycle;
190 unsigned long rate_usec_cycle;
191 long rate_pending_usleep;
192 unsigned long rate_bytes;
193 struct timeval lastrate;
195 unsigned long runtime[2]; /* msec */
196 unsigned long long io_size;
197 unsigned long long total_io_size;
199 unsigned long long io_blocks[2];
200 unsigned long long io_bytes[2];
201 unsigned long long zone_bytes;
202 unsigned long long this_io_bytes[2];
203 unsigned long long last_pos;
206 struct drand48_data random_state;
207 unsigned long *file_map;
208 unsigned int num_maps;
211 * bandwidth and latency stats
213 struct io_stat clat_stat[2]; /* completion latency */
214 struct io_stat slat_stat[2]; /* submission latency */
215 struct io_stat bw_stat[2]; /* bandwidth stats */
217 unsigned long long stat_io_bytes[2];
218 struct timeval stat_sample_time[2];
220 struct io_log *slat_log;
221 struct io_log *clat_log;
222 struct io_log *bw_log;
224 struct timeval start; /* start of this loop */
225 struct timeval epoch; /* time job was started */
227 struct rusage ru_start;
228 struct rusage ru_end;
229 unsigned long usr_time;
230 unsigned long sys_time;
233 unsigned int do_disk_util;
234 unsigned int override_sync;
236 struct drand48_data rwmix_state;
237 struct timeval rwmix_switch;
241 * Pre-run and post-run shell
246 struct list_head io_hist_list;
247 struct list_head io_log_list;
250 #define td_verror(td, err) \
254 snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, error=%s", __FILE__, __LINE__, strerror(e)); \
257 extern int parse_jobs_ini(char *);
258 extern int parse_options(int, char **);
259 extern void finish_log(struct thread_data *, struct io_log *, const char *);
260 extern int init_random_state(struct thread_data *);
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))