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;
48 #ifdef FIO_HAVE_LIBAIO
51 #ifdef FIO_HAVE_POSIXAIO
58 struct timeval start_time;
59 struct timeval issue_time;
63 unsigned long long offset;
71 struct list_head list;
74 #define FIO_HDR_MAGIC 0xf00baaef
82 struct verify_header {
83 unsigned int fio_magic;
85 unsigned int verify_type;
87 char md5_digest[MD5_HASH_WORDS * 4];
92 struct group_run_stats {
93 unsigned long max_run[2], min_run[2];
94 unsigned long max_bw[2], min_bw[2];
95 unsigned long io_mb[2];
112 size_t orig_buffer_size;
113 volatile int terminate;
114 volatile int runstate;
115 volatile int old_runstate;
118 unsigned int sequential;
122 unsigned int odirect;
123 unsigned int thinktime;
124 unsigned int fsync_blocks;
125 unsigned int start_delay;
126 unsigned int timeout;
127 unsigned int io_engine;
128 unsigned int create_file;
129 unsigned int overwrite;
130 unsigned int invalidate_cache;
131 unsigned int bw_avg_time;
132 unsigned int create_serialize;
133 unsigned int create_fsync;
135 unsigned long long file_size;
136 unsigned long long file_offset;
137 unsigned long long zone_size;
138 unsigned long long zone_skip;
139 unsigned int sync_io;
140 unsigned int mem_type;
142 unsigned int stonewall;
143 unsigned int numjobs;
144 unsigned int use_thread;
145 unsigned int iodepth;
146 os_cpu_mask_t cpumask;
148 struct drand48_data bsrange_state;
149 struct drand48_data verify_state;
154 char io_engine_name[16];
155 int (*io_prep)(struct thread_data *, struct io_u *);
156 int (*io_queue)(struct thread_data *, struct io_u *);
157 int (*io_getevents)(struct thread_data *, int, int, struct timespec *);
158 struct io_u *(*io_event)(struct thread_data *, int);
159 int (*io_cancel)(struct thread_data *, struct io_u *);
160 void (*io_cleanup)(struct thread_data *);
161 int (*io_sync)(struct thread_data *);
163 unsigned int cur_depth;
164 struct list_head io_u_freelist;
165 struct list_head io_u_busylist;
168 unsigned int ratemin;
169 unsigned int ratecycle;
170 unsigned long rate_usec_cycle;
171 long rate_pending_usleep;
172 unsigned long rate_bytes;
173 struct timeval lastrate;
175 unsigned long runtime[2]; /* msec */
176 unsigned long long io_size;
177 unsigned long long total_io_size;
179 unsigned long io_blocks[2];
180 unsigned long io_bytes[2];
181 unsigned long zone_bytes;
182 unsigned long this_io_bytes[2];
183 unsigned long long last_pos;
186 struct drand48_data random_state;
187 unsigned long *file_map;
188 unsigned int num_maps;
191 * bandwidth and latency stats
193 struct io_stat clat_stat[2]; /* completion latency */
194 struct io_stat slat_stat[2]; /* submission latency */
195 struct io_stat bw_stat[2]; /* bandwidth stats */
197 unsigned long stat_io_bytes[2];
198 struct timeval stat_sample_time[2];
200 struct io_log *slat_log;
201 struct io_log *clat_log;
202 struct io_log *bw_log;
204 struct timeval start; /* start of this loop */
205 struct timeval epoch; /* time job was started */
207 struct rusage ru_start;
208 struct rusage ru_end;
209 unsigned long usr_time;
210 unsigned long sys_time;
213 unsigned int do_disk_util;
214 unsigned int override_sync;
216 struct list_head io_hist_list;
219 #define td_verror(td, err) \
223 snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, error=%s", __FILE__, __LINE__, strerror(e)); \
226 extern int parse_jobs_ini(char *);
227 extern int parse_options(int, char **);
228 extern void finish_log(struct thread_data *, struct io_log *, const char *);
229 extern int init_random_state(struct thread_data *);
231 extern int rate_quit;
232 extern int write_lat_log;
233 extern int write_bw_log;
234 extern int exitall_on_terminate;
235 extern int thread_number;
239 extern struct thread_data *threads;
247 * What type of allocation to use for io buffers
250 MEM_MALLOC, /* ordinary malloc */
251 MEM_SHM, /* use shared memory segments */
252 MEM_MMAP, /* use anonynomous mmap */
256 * The type of object we are working on
265 FIO_MMAPIO = 1 << 1 | FIO_SYNCIO,
267 FIO_POSIXAIO = 1 << 3,
271 #define td_read(td) ((td)->ddir == DDIR_READ)
272 #define td_write(td) ((td)->ddir == DDIR_WRITE)
274 #define BLOCKS_PER_MAP (8 * sizeof(long))
275 #define TO_MAP_BLOCK(td, b) ((b) - ((td)->file_offset / (td)->min_bs))
276 #define RAND_MAP_IDX(td, b) (TO_MAP_BLOCK(td, b) / BLOCKS_PER_MAP)
277 #define RAND_MAP_BIT(td, b) (TO_MAP_BLOCK(td, b) & (BLOCKS_PER_MAP - 1))
279 #define MAX_JOBS (1024)
281 struct disk_util_stat {
284 unsigned long long sectors[2];
287 unsigned time_in_queue;
291 struct list_head list;
297 struct disk_util_stat dus;
298 struct disk_util_stat last_dus;
304 struct io_completion_data {
307 int error; /* output */
308 unsigned long bytes_done[2]; /* output */
311 #define DISK_UTIL_MSEC (250)