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_mb[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;
138 unsigned long long file_size;
139 unsigned long long real_file_size;
140 unsigned long long file_offset;
141 unsigned long long zone_size;
142 unsigned long long zone_skip;
143 unsigned int sync_io;
144 unsigned int mem_type;
146 unsigned int stonewall;
147 unsigned int numjobs;
148 unsigned int use_thread;
149 unsigned int iodepth;
150 os_cpu_mask_t cpumask;
154 char iolog_file[256];
156 struct drand48_data bsrange_state;
157 struct drand48_data verify_state;
162 char io_engine_name[16];
163 int (*io_prep)(struct thread_data *, struct io_u *);
164 int (*io_queue)(struct thread_data *, struct io_u *);
165 int (*io_getevents)(struct thread_data *, int, int, struct timespec *);
166 struct io_u *(*io_event)(struct thread_data *, int);
167 int (*io_cancel)(struct thread_data *, struct io_u *);
168 void (*io_cleanup)(struct thread_data *);
169 int (*io_sync)(struct thread_data *);
171 unsigned int cur_depth;
172 struct list_head io_u_freelist;
173 struct list_head io_u_busylist;
176 unsigned int ratemin;
177 unsigned int ratecycle;
178 unsigned long rate_usec_cycle;
179 long rate_pending_usleep;
180 unsigned long rate_bytes;
181 struct timeval lastrate;
183 unsigned long runtime[2]; /* msec */
184 unsigned long long io_size;
185 unsigned long long total_io_size;
187 unsigned long long io_blocks[2];
188 unsigned long long io_bytes[2];
189 unsigned long long zone_bytes;
190 unsigned long long this_io_bytes[2];
191 unsigned long long last_pos;
194 struct drand48_data random_state;
195 unsigned long *file_map;
196 unsigned int num_maps;
199 * bandwidth and latency stats
201 struct io_stat clat_stat[2]; /* completion latency */
202 struct io_stat slat_stat[2]; /* submission latency */
203 struct io_stat bw_stat[2]; /* bandwidth stats */
205 unsigned long long stat_io_bytes[2];
206 struct timeval stat_sample_time[2];
208 struct io_log *slat_log;
209 struct io_log *clat_log;
210 struct io_log *bw_log;
212 struct timeval start; /* start of this loop */
213 struct timeval epoch; /* time job was started */
215 struct rusage ru_start;
216 struct rusage ru_end;
217 unsigned long usr_time;
218 unsigned long sys_time;
221 unsigned int do_disk_util;
222 unsigned int override_sync;
224 struct list_head io_hist_list;
225 struct list_head io_log_list;
228 #define td_verror(td, err) \
232 snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, error=%s", __FILE__, __LINE__, strerror(e)); \
235 extern int parse_jobs_ini(char *);
236 extern int parse_options(int, char **);
237 extern void finish_log(struct thread_data *, struct io_log *, const char *);
238 extern int init_random_state(struct thread_data *);
239 extern struct io_u *__get_io_u(struct thread_data *);
240 extern void put_io_u(struct thread_data *, struct io_u *);
242 extern int rate_quit;
243 extern int write_lat_log;
244 extern int write_bw_log;
245 extern int exitall_on_terminate;
246 extern int thread_number;
250 extern struct thread_data *threads;
258 * What type of allocation to use for io buffers
261 MEM_MALLOC, /* ordinary malloc */
262 MEM_SHM, /* use shared memory segments */
263 MEM_MMAP, /* use anonynomous mmap */
267 * The type of object we are working on
277 FIO_MMAPIO = 1 << 1 | FIO_SYNCIO,
279 FIO_POSIXAIO = 1 << 3,
281 FIO_SPLICEIO = 1 << 5 | FIO_SYNCIO,
284 #define td_read(td) ((td)->ddir == DDIR_READ)
285 #define td_write(td) ((td)->ddir == DDIR_WRITE)
286 #define td_rw(td) ((td)->iomix != 0)
288 #define BLOCKS_PER_MAP (8 * sizeof(long))
289 #define TO_MAP_BLOCK(td, b) ((b) - ((td)->file_offset / (td)->min_bs))
290 #define RAND_MAP_IDX(td, b) (TO_MAP_BLOCK(td, b) / BLOCKS_PER_MAP)
291 #define RAND_MAP_BIT(td, b) (TO_MAP_BLOCK(td, b) & (BLOCKS_PER_MAP - 1))
293 #define MAX_JOBS (1024)
295 struct disk_util_stat {
298 unsigned long long sectors[2];
301 unsigned time_in_queue;
305 struct list_head list;
311 struct disk_util_stat dus;
312 struct disk_util_stat last_dus;
318 struct io_completion_data {
321 int error; /* output */
322 unsigned long bytes_done[2]; /* output */
325 #define DISK_UTIL_MSEC (250)
328 #define min(a, b) ((a) < (b) ? (a) : (b))