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;
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;
155 char iolog_file[256];
157 struct drand48_data bsrange_state;
158 struct drand48_data verify_state;
163 char io_engine_name[16];
164 int (*io_prep)(struct thread_data *, struct io_u *);
165 int (*io_queue)(struct thread_data *, struct io_u *);
166 int (*io_getevents)(struct thread_data *, int, int, struct timespec *);
167 struct io_u *(*io_event)(struct thread_data *, int);
168 int (*io_cancel)(struct thread_data *, struct io_u *);
169 void (*io_cleanup)(struct thread_data *);
170 int (*io_sync)(struct thread_data *);
172 unsigned int cur_depth;
173 struct list_head io_u_freelist;
174 struct list_head io_u_busylist;
177 unsigned int ratemin;
178 unsigned int ratecycle;
179 unsigned long rate_usec_cycle;
180 long rate_pending_usleep;
181 unsigned long rate_bytes;
182 struct timeval lastrate;
184 unsigned long runtime[2]; /* msec */
185 unsigned long long io_size;
186 unsigned long long total_io_size;
188 unsigned long long io_blocks[2];
189 unsigned long long io_bytes[2];
190 unsigned long long zone_bytes;
191 unsigned long long this_io_bytes[2];
192 unsigned long long last_pos;
195 struct drand48_data random_state;
196 unsigned long *file_map;
197 unsigned int num_maps;
200 * bandwidth and latency stats
202 struct io_stat clat_stat[2]; /* completion latency */
203 struct io_stat slat_stat[2]; /* submission latency */
204 struct io_stat bw_stat[2]; /* bandwidth stats */
206 unsigned long long stat_io_bytes[2];
207 struct timeval stat_sample_time[2];
209 struct io_log *slat_log;
210 struct io_log *clat_log;
211 struct io_log *bw_log;
213 struct timeval start; /* start of this loop */
214 struct timeval epoch; /* time job was started */
216 struct rusage ru_start;
217 struct rusage ru_end;
218 unsigned long usr_time;
219 unsigned long sys_time;
222 unsigned int do_disk_util;
223 unsigned int override_sync;
225 struct list_head io_hist_list;
226 struct list_head io_log_list;
229 #define td_verror(td, err) \
233 snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, error=%s", __FILE__, __LINE__, strerror(e)); \
236 extern int parse_jobs_ini(char *);
237 extern int parse_options(int, char **);
238 extern void finish_log(struct thread_data *, struct io_log *, const char *);
239 extern int init_random_state(struct thread_data *);
240 extern struct io_u *__get_io_u(struct thread_data *);
241 extern void put_io_u(struct thread_data *, struct io_u *);
243 extern int rate_quit;
244 extern int write_lat_log;
245 extern int write_bw_log;
246 extern int exitall_on_terminate;
247 extern int thread_number;
251 extern struct thread_data *threads;
259 * What type of allocation to use for io buffers
262 MEM_MALLOC, /* ordinary malloc */
263 MEM_SHM, /* use shared memory segments */
264 MEM_MMAP, /* use anonynomous mmap */
268 * The type of object we are working on
278 FIO_MMAPIO = 1 << 1 | FIO_SYNCIO,
280 FIO_POSIXAIO = 1 << 3,
282 FIO_SPLICEIO = 1 << 5 | FIO_SYNCIO,
285 #define td_read(td) ((td)->ddir == DDIR_READ)
286 #define td_write(td) ((td)->ddir == DDIR_WRITE)
287 #define td_rw(td) ((td)->iomix != 0)
289 #define BLOCKS_PER_MAP (8 * sizeof(long))
290 #define TO_MAP_BLOCK(td, b) ((b) - ((td)->file_offset / (td)->min_bs))
291 #define RAND_MAP_IDX(td, b) (TO_MAP_BLOCK(td, b) / BLOCKS_PER_MAP)
292 #define RAND_MAP_BIT(td, b) (TO_MAP_BLOCK(td, b) & (BLOCKS_PER_MAP - 1))
294 #define MAX_JOBS (1024)
296 struct disk_util_stat {
299 unsigned long long sectors[2];
302 unsigned time_in_queue;
306 struct list_head list;
312 struct disk_util_stat dus;
313 struct disk_util_stat last_dus;
319 struct io_completion_data {
322 int error; /* output */
323 unsigned long bytes_done[2]; /* output */
326 #define DISK_UTIL_MSEC (250)
329 #define min(a, b) ((a) < (b) ? (a) : (b))