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;
154 unsigned int rwmixcycle;
155 unsigned int rwmixread;
157 char iolog_file[256];
159 struct drand48_data bsrange_state;
160 struct drand48_data verify_state;
165 char io_engine_name[16];
166 int (*io_prep)(struct thread_data *, struct io_u *);
167 int (*io_queue)(struct thread_data *, struct io_u *);
168 int (*io_getevents)(struct thread_data *, int, int, struct timespec *);
169 struct io_u *(*io_event)(struct thread_data *, int);
170 int (*io_cancel)(struct thread_data *, struct io_u *);
171 void (*io_cleanup)(struct thread_data *);
172 int (*io_sync)(struct thread_data *);
174 unsigned int cur_depth;
175 struct list_head io_u_freelist;
176 struct list_head io_u_busylist;
179 unsigned int ratemin;
180 unsigned int ratecycle;
181 unsigned long rate_usec_cycle;
182 long rate_pending_usleep;
183 unsigned long rate_bytes;
184 struct timeval lastrate;
186 unsigned long runtime[2]; /* msec */
187 unsigned long long io_size;
188 unsigned long long total_io_size;
190 unsigned long long io_blocks[2];
191 unsigned long long io_bytes[2];
192 unsigned long long zone_bytes;
193 unsigned long long this_io_bytes[2];
194 unsigned long long last_pos;
197 struct drand48_data random_state;
198 unsigned long *file_map;
199 unsigned int num_maps;
202 * bandwidth and latency stats
204 struct io_stat clat_stat[2]; /* completion latency */
205 struct io_stat slat_stat[2]; /* submission latency */
206 struct io_stat bw_stat[2]; /* bandwidth stats */
208 unsigned long long stat_io_bytes[2];
209 struct timeval stat_sample_time[2];
211 struct io_log *slat_log;
212 struct io_log *clat_log;
213 struct io_log *bw_log;
215 struct timeval start; /* start of this loop */
216 struct timeval epoch; /* time job was started */
218 struct rusage ru_start;
219 struct rusage ru_end;
220 unsigned long usr_time;
221 unsigned long sys_time;
224 unsigned int do_disk_util;
225 unsigned int override_sync;
227 struct drand48_data rwmix_state;
228 struct timeval rwmix_switch;
231 struct list_head io_hist_list;
232 struct list_head io_log_list;
235 #define td_verror(td, err) \
239 snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, error=%s", __FILE__, __LINE__, strerror(e)); \
242 extern int parse_jobs_ini(char *);
243 extern int parse_options(int, char **);
244 extern void finish_log(struct thread_data *, struct io_log *, const char *);
245 extern int init_random_state(struct thread_data *);
246 extern struct io_u *__get_io_u(struct thread_data *);
247 extern void put_io_u(struct thread_data *, struct io_u *);
249 extern int rate_quit;
250 extern int write_lat_log;
251 extern int write_bw_log;
252 extern int exitall_on_terminate;
253 extern int thread_number;
257 extern struct thread_data *threads;
265 * What type of allocation to use for io buffers
268 MEM_MALLOC, /* ordinary malloc */
269 MEM_SHM, /* use shared memory segments */
270 MEM_MMAP, /* use anonynomous mmap */
274 * The type of object we are working on
284 FIO_MMAPIO = 1 << 1 | FIO_SYNCIO,
286 FIO_POSIXAIO = 1 << 3,
288 FIO_SPLICEIO = 1 << 5 | FIO_SYNCIO,
291 #define td_read(td) ((td)->ddir == DDIR_READ)
292 #define td_write(td) ((td)->ddir == DDIR_WRITE)
293 #define td_rw(td) ((td)->iomix != 0)
295 #define BLOCKS_PER_MAP (8 * sizeof(long))
296 #define TO_MAP_BLOCK(td, b) ((b) - ((td)->file_offset / (td)->min_bs))
297 #define RAND_MAP_IDX(td, b) (TO_MAP_BLOCK(td, b) / BLOCKS_PER_MAP)
298 #define RAND_MAP_BIT(td, b) (TO_MAP_BLOCK(td, b) & (BLOCKS_PER_MAP - 1))
300 #define MAX_JOBS (1024)
302 struct disk_util_stat {
305 unsigned long long sectors[2];
308 unsigned time_in_queue;
312 struct list_head list;
318 struct disk_util_stat dus;
319 struct disk_util_stat last_dus;
325 struct io_completion_data {
328 int error; /* output */
329 unsigned long bytes_done[2]; /* output */
332 #define DISK_UTIL_MSEC (250)
335 #define min(a, b) ((a) < (b) ? (a) : (b))