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 int sync_io;
138 unsigned int mem_type;
140 unsigned int stonewall;
141 unsigned int numjobs;
142 unsigned int use_thread;
143 unsigned int iodepth;
144 os_cpu_mask_t cpumask;
146 struct drand48_data bsrange_state;
147 struct drand48_data verify_state;
151 unsigned long long cur_off;
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 this_io_bytes[2];
182 unsigned long last_bytes;
185 struct drand48_data random_state;
186 unsigned long *file_map;
187 unsigned int num_maps;
190 * bandwidth and latency stats
192 struct io_stat clat_stat[2]; /* completion latency */
193 struct io_stat slat_stat[2]; /* submission latency */
194 struct io_stat bw_stat[2]; /* bandwidth stats */
196 unsigned long stat_io_bytes[2];
197 struct timeval stat_sample_time[2];
199 struct io_log *slat_log;
200 struct io_log *clat_log;
201 struct io_log *bw_log;
203 struct timeval start; /* start of this loop */
204 struct timeval epoch; /* time job was started */
206 struct rusage ru_start;
207 struct rusage ru_end;
208 unsigned long usr_time;
209 unsigned long sys_time;
212 unsigned int do_disk_util;
213 unsigned int override_sync;
215 struct list_head io_hist_list;
218 #define td_verror(td, err) \
222 snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, error=%s", __FILE__, __LINE__, strerror(e)); \
225 extern int parse_jobs_ini(char *);
226 extern int parse_options(int, char **);
227 extern void finish_log(struct thread_data *, struct io_log *, const char *);
228 extern int init_random_state(struct thread_data *);
230 extern int rate_quit;
231 extern int write_lat_log;
232 extern int write_bw_log;
233 extern int exitall_on_terminate;
234 extern int thread_number;
238 extern struct thread_data *threads;
246 * What type of allocation to use for io buffers
249 MEM_MALLOC, /* ordinary malloc */
250 MEM_SHM, /* use shared memory segments */
251 MEM_MMAP, /* use anonynomous mmap */
255 * The type of object we are working on
264 FIO_MMAPIO = 1 << 1 | FIO_SYNCIO,
266 FIO_POSIXAIO = 1 << 3,
270 #define td_read(td) ((td)->ddir == DDIR_READ)
271 #define td_write(td) ((td)->ddir == DDIR_WRITE)
273 #define BLOCKS_PER_MAP (8 * sizeof(long))
274 #define TO_MAP_BLOCK(td, b) ((b) - ((td)->file_offset / (td)->min_bs))
275 #define RAND_MAP_IDX(td, b) (TO_MAP_BLOCK(td, b) / BLOCKS_PER_MAP)
276 #define RAND_MAP_BIT(td, b) (TO_MAP_BLOCK(td, b) & (BLOCKS_PER_MAP - 1))
278 #define MAX_JOBS (1024)
280 struct disk_util_stat {
283 unsigned long long sectors[2];
286 unsigned time_in_queue;
290 struct list_head list;
296 struct disk_util_stat dus;
297 struct disk_util_stat last_dus;
303 struct io_completion_data {
306 int error; /* output */
307 unsigned long bytes_done[2]; /* output */
310 #define DISK_UTIL_MSEC (250)