blob: 7c39be323f2a193c0b460213059f9545838047eb [file] [log] [blame]
Jens Axboeebac4652005-12-08 15:25:21 +01001#ifndef FIO_H
2#define FIO_H
3
4#include <sched.h>
5#include <limits.h>
6#include <pthread.h>
7#include <sys/time.h>
8#include <sys/resource.h>
Jens Axboe3c39a372006-06-06 20:56:12 +02009#include <errno.h>
10#include <stdlib.h>
11#include <stdio.h>
Jens Axboe6d6f0312006-06-07 21:39:13 +020012#include <unistd.h>
Jens Axboe34cfcda2006-11-03 14:00:45 +010013#include <string.h>
Jens Axboe214e1ec2007-03-15 10:48:13 +010014#include <getopt.h>
Jens Axboecd14cc12007-07-30 10:59:33 +020015#include <inttypes.h>
Jens Axboe7101d9c2007-09-12 13:12:39 +020016#include <assert.h>
Jens Axboeebac4652005-12-08 15:25:21 +010017
Jens Axboe317b95d2007-04-02 21:36:44 +020018#include "compiler/compiler.h"
Jens Axboeebac4652005-12-08 15:25:21 +010019#include "list.h"
Jens Axboee2887562007-05-16 09:25:09 +020020#include "fifo.h"
Jens Axboe4b878982007-03-26 09:32:22 +020021#include "rbtree.h"
Jens Axboe317b95d2007-04-02 21:36:44 +020022#include "arch/arch.h"
23#include "os/os.h"
Jens Axboe07739b52007-03-08 20:25:46 +010024#include "mutex.h"
Jens Axboeebac4652005-12-08 15:25:21 +010025
Davide Libenzi609342f2007-03-21 08:46:18 +010026#ifdef FIO_HAVE_GUASI
27#include <guasi.h>
28#endif
29
Jens Axboe1e97cce2006-12-05 11:44:16 +010030enum fio_ddir {
31 DDIR_READ = 0,
32 DDIR_WRITE,
33 DDIR_SYNC,
Jens Axboef29b25a2007-07-23 08:56:43 +020034 DDIR_INVAL = -1,
Jens Axboe1e97cce2006-12-05 11:44:16 +010035};
36
Jens Axboe413dd452007-02-23 09:26:09 +010037enum td_ddir {
Jens Axboeb1ec1da2007-02-23 10:29:16 +010038 TD_DDIR_READ = 1 << 0,
39 TD_DDIR_WRITE = 1 << 1,
40 TD_DDIR_RAND = 1 << 2,
41 TD_DDIR_RW = TD_DDIR_READ | TD_DDIR_WRITE,
42 TD_DDIR_RANDREAD = TD_DDIR_READ | TD_DDIR_RAND,
Joel Becker7ff1c142007-03-03 12:03:29 +010043 TD_DDIR_RANDWRITE = TD_DDIR_WRITE | TD_DDIR_RAND,
Jens Axboeb1ec1da2007-02-23 10:29:16 +010044 TD_DDIR_RANDRW = TD_DDIR_RW | TD_DDIR_RAND,
Jens Axboe413dd452007-02-23 09:26:09 +010045};
46
Jens Axboe1c9e06e2007-02-11 04:07:57 +010047/*
48 * Use for maintaining statistics
49 */
Jens Axboeebac4652005-12-08 15:25:21 +010050struct io_stat {
Jens Axboeebac4652005-12-08 15:25:21 +010051 unsigned long max_val;
52 unsigned long min_val;
53 unsigned long samples;
Jens Axboe68704082007-01-10 19:56:37 +010054
55 double mean;
56 double S;
Jens Axboeebac4652005-12-08 15:25:21 +010057};
58
Jens Axboe1c9e06e2007-02-11 04:07:57 +010059/*
60 * A single data sample
61 */
Jens Axboeebac4652005-12-08 15:25:21 +010062struct io_sample {
63 unsigned long time;
64 unsigned long val;
Jens Axboe1e97cce2006-12-05 11:44:16 +010065 enum fio_ddir ddir;
Jens Axboeebac4652005-12-08 15:25:21 +010066};
67
Jens Axboe1c9e06e2007-02-11 04:07:57 +010068/*
69 * Dynamically growing data sample log
70 */
Jens Axboeebac4652005-12-08 15:25:21 +010071struct io_log {
72 unsigned long nr_samples;
73 unsigned long max_samples;
74 struct io_sample *log;
75};
76
Jens Axboe1c9e06e2007-02-11 04:07:57 +010077/*
78 * When logging io actions, this matches a single sent io_u
79 */
Jens Axboeebac4652005-12-08 15:25:21 +010080struct io_piece {
Jens Axboe4b878982007-03-26 09:32:22 +020081 union {
82 struct rb_node rb_node;
83 struct list_head list;
84 };
Jens Axboef29b25a2007-07-23 08:56:43 +020085 union {
86 int fileno;
87 struct fio_file *file;
88 };
Jens Axboeebac4652005-12-08 15:25:21 +010089 unsigned long long offset;
Jens Axboea4f4fdd2007-02-14 01:16:39 +010090 unsigned long len;
Jens Axboe1e97cce2006-12-05 11:44:16 +010091 enum fio_ddir ddir;
Jens Axboef29b25a2007-07-23 08:56:43 +020092 union {
93 unsigned long delay;
94 unsigned int file_action;
95 };
Jens Axboeebac4652005-12-08 15:25:21 +010096};
97
Jens Axboe0c6e7512007-02-22 11:19:39 +010098enum {
99 IO_U_F_FREE = 1 << 0,
100 IO_U_F_FLIGHT = 1 << 1,
101};
102
Jens Axboe36690c92007-03-26 10:23:34 +0200103struct thread_data;
104
Jens Axboeebac4652005-12-08 15:25:21 +0100105/*
106 * The io unit
107 */
108struct io_u {
109 union {
110#ifdef FIO_HAVE_LIBAIO
111 struct iocb iocb;
112#endif
113#ifdef FIO_HAVE_POSIXAIO
114 struct aiocb aiocb;
115#endif
116#ifdef FIO_HAVE_SGIO
117 struct sg_io_hdr hdr;
118#endif
Davide Libenzi609342f2007-03-21 08:46:18 +0100119#ifdef FIO_HAVE_GUASI
120 guasi_req_t greq;
121#endif
Jens Axboeebac4652005-12-08 15:25:21 +0100122 };
123 struct timeval start_time;
124 struct timeval issue_time;
125
Jens Axboe1c9e06e2007-02-11 04:07:57 +0100126 /*
127 * Allocated/set buffer and length
128 */
Jens Axboe6b9cea22006-10-30 17:00:24 +0100129 void *buf;
Jens Axboea4f4fdd2007-02-14 01:16:39 +0100130 unsigned long buflen;
Jens Axboeebac4652005-12-08 15:25:21 +0100131 unsigned long long offset;
Jens Axboed460eb32007-04-16 21:39:33 +0200132 unsigned long long endpos;
Jens Axboeebac4652005-12-08 15:25:21 +0100133
Jens Axboe1c9e06e2007-02-11 04:07:57 +0100134 /*
135 * IO engine state, may be different from above when we get
136 * partial transfers / residual data counts
137 */
Jens Axboecec6b552007-02-06 20:15:38 +0100138 void *xfer_buf;
Jens Axboea4f4fdd2007-02-14 01:16:39 +0100139 unsigned long xfer_buflen;
Jens Axboecec6b552007-02-06 20:15:38 +0100140
Jens Axboeebac4652005-12-08 15:25:21 +0100141 unsigned int resid;
142 unsigned int error;
143
Jens Axboe1e97cce2006-12-05 11:44:16 +0100144 enum fio_ddir ddir;
Jens Axboeebac4652005-12-08 15:25:21 +0100145
Jens Axboedfd7bc22006-10-24 12:17:57 +0200146 /*
147 * io engine private data
148 */
149 union {
150 unsigned int index;
151 unsigned int seen;
152 };
153
Jens Axboe0c6e7512007-02-22 11:19:39 +0100154 unsigned int flags;
155
Jens Axboe53cdc682006-10-18 11:50:58 +0200156 struct fio_file *file;
157
Jens Axboeebac4652005-12-08 15:25:21 +0100158 struct list_head list;
Jens Axboed7762cf2007-02-23 12:34:57 +0100159
160 /*
161 * Callback for io completion
162 */
Jens Axboe36690c92007-03-26 10:23:34 +0200163 int (*end_io)(struct thread_data *, struct io_u *);
Jens Axboeebac4652005-12-08 15:25:21 +0100164};
165
Jens Axboe36167d82007-02-18 05:41:31 +0100166/*
167 * io_ops->queue() return values
168 */
169enum {
170 FIO_Q_COMPLETED = 0, /* completed sync */
171 FIO_Q_QUEUED = 1, /* queued, will complete async */
Jens Axboe755200a2007-02-19 13:08:12 +0100172 FIO_Q_BUSY = 2, /* no more room, call ->commit() */
Jens Axboe36167d82007-02-18 05:41:31 +0100173};
174
Jens Axboeebac4652005-12-08 15:25:21 +0100175#define FIO_HDR_MAGIC 0xf00baaef
176
177enum {
Jens Axboe1c9e06e2007-02-11 04:07:57 +0100178 VERIFY_NONE = 0, /* no verification */
179 VERIFY_MD5, /* md5 sum data blocks */
Jens Axboed77a7af2007-07-27 15:35:06 +0200180 VERIFY_CRC64, /* crc64 sum data blocks */
Jens Axboe1c9e06e2007-02-11 04:07:57 +0100181 VERIFY_CRC32, /* crc32 sum data blocks */
Jens Axboe969f7ed2007-07-27 09:07:17 +0200182 VERIFY_CRC16, /* crc16 sum data blocks */
Jens Axboe1e154bd2007-07-27 09:52:40 +0200183 VERIFY_CRC7, /* crc7 sum data blocks */
Jens Axboecd14cc12007-07-30 10:59:33 +0200184 VERIFY_SHA256, /* sha256 sum data blocks */
185 VERIFY_SHA512, /* sha512 sum data blocks */
Shawn Lewis7437ee82007-08-02 21:05:58 +0200186 VERIFY_META, /* block_num, timestamp etc. */
Jens Axboebfb41d92007-08-10 13:56:08 +0200187 VERIFY_PATTERN, /* verify a specific pattern */
Jens Axboe36690c92007-03-26 10:23:34 +0200188 VERIFY_NULL, /* pretend to verify */
Jens Axboeebac4652005-12-08 15:25:21 +0100189};
190
Jens Axboe1c9e06e2007-02-11 04:07:57 +0100191/*
Jens Axboe546dfd92007-07-30 12:23:05 +0200192 * A header structure associated with each checksummed data block. It is
193 * followed by a checksum specific header that contains the verification
194 * data.
Jens Axboe1c9e06e2007-02-11 04:07:57 +0100195 */
Jens Axboeebac4652005-12-08 15:25:21 +0100196struct verify_header {
197 unsigned int fio_magic;
198 unsigned int len;
199 unsigned int verify_type;
Jens Axboe546dfd92007-07-30 12:23:05 +0200200};
201
202struct vhdr_md5 {
203 uint32_t md5_digest[16];
204};
205struct vhdr_sha512 {
206 uint8_t sha512[128];
207};
208struct vhdr_sha256 {
209 uint8_t sha256[128];
210};
211struct vhdr_crc64 {
212 uint64_t crc64;
213};
214struct vhdr_crc32 {
215 uint32_t crc32;
216};
217struct vhdr_crc16 {
218 uint16_t crc16;
219};
220struct vhdr_crc7 {
221 uint8_t crc7;
Jens Axboeebac4652005-12-08 15:25:21 +0100222};
Shawn Lewis7437ee82007-08-02 21:05:58 +0200223struct vhdr_meta {
224 uint64_t offset;
225 unsigned char thread;
226 unsigned short numberio;
227 unsigned long time_sec;
228 unsigned long time_usec;
229};
Jens Axboeebac4652005-12-08 15:25:21 +0100230
231struct group_run_stats {
Jens Axboe9104f872005-12-28 23:50:45 +0100232 unsigned long long max_run[2], min_run[2];
233 unsigned long long max_bw[2], min_bw[2];
Jens Axboee9b2a3f2006-06-06 15:38:33 +0200234 unsigned long long io_kb[2];
Jens Axboe9104f872005-12-28 23:50:45 +0100235 unsigned long long agg[2];
Jens Axboeebac4652005-12-08 15:25:21 +0100236};
237
Jens Axboee9c047a2006-06-07 21:13:04 +0200238/*
239 * What type of allocation to use for io buffers
240 */
241enum fio_memtype {
242 MEM_MALLOC = 0, /* ordinary malloc */
243 MEM_SHM, /* use shared memory segments */
Jens Axboe74b025b2006-12-19 15:18:14 +0100244 MEM_SHMHUGE, /* use shared memory segments with huge pages */
Jens Axboee9c047a2006-06-07 21:13:04 +0200245 MEM_MMAP, /* use anonynomous mmap */
Jens Axboed0bdaf42006-12-20 14:40:44 +0100246 MEM_MMAPHUGE, /* memory mapped huge file */
Jens Axboee9c047a2006-06-07 21:13:04 +0200247};
248
249/*
250 * The type of object we are working on
251 */
252enum fio_filetype {
Jens Axboe1c9e06e2007-02-11 04:07:57 +0100253 FIO_TYPE_FILE = 1, /* plain file */
254 FIO_TYPE_BD, /* block device */
255 FIO_TYPE_CHAR, /* character device */
Jens Axboeb5605e92007-04-16 20:42:33 +0200256 FIO_TYPE_PIPE, /* pipe */
Jens Axboee9c047a2006-06-07 21:13:04 +0200257};
258
Jens Axboe2866c822006-10-09 15:57:48 +0200259enum fio_ioengine_flags {
Jens Axboe1c9e06e2007-02-11 04:07:57 +0100260 FIO_SYNCIO = 1 << 0, /* io engine has synchronous ->queue */
Jens Axboeba0fbe12007-03-09 14:34:23 +0100261 FIO_RAWIO = 1 << 1, /* some sort of direct/raw io */
262 FIO_DISKLESSIO = 1 << 2, /* no disk involved */
Jens Axboe02638822007-03-12 09:25:55 +0100263 FIO_NOEXTEND = 1 << 3, /* engine can't extend file */
Jens Axboe62d984e2007-03-13 08:15:18 +0100264 FIO_NODISKUTIL = 1 << 4, /* diskutil can't handle filename */
Jens Axboeb67740d2007-07-26 12:22:30 +0200265 FIO_UNIDIR = 1 << 5, /* engine is uni-directional */
Jens Axboe1f809d12007-10-25 18:34:02 +0200266 FIO_NOIO = 1 << 6, /* thread does only pseudo IO */
Jens Axboee9c047a2006-06-07 21:13:04 +0200267};
268
Jens Axboef11bd942007-03-13 10:16:34 +0100269enum fio_file_flags {
Jens Axboe0ad920e2007-03-13 11:06:45 +0100270 FIO_FILE_OPEN = 1 << 0, /* file is open */
Jens Axboea9b7b302007-04-19 16:31:16 +0200271 FIO_FILE_CLOSING = 1 << 1, /* file being closed */
272 FIO_FILE_EXISTS = 1 << 2, /* file there */
273 FIO_FILE_EXTEND = 1 << 3, /* needs extend */
274 FIO_FILE_NOSORT = 1 << 4, /* don't sort verify blocks */
275 FIO_FILE_DONE = 1 << 5, /* io completed to this file */
276 FIO_SIZE_KNOWN = 1 << 6, /* size has been set */
Jens Axboef11bd942007-03-13 10:16:34 +0100277};
278
Jens Axboe1c9e06e2007-02-11 04:07:57 +0100279/*
280 * Each thread_data structure has a number of files associated with it,
281 * this structure holds state information for a single file.
282 */
Jens Axboe53cdc682006-10-18 11:50:58 +0200283struct fio_file {
Jens Axboeaf52b342007-03-13 10:07:47 +0100284 enum fio_filetype filetype;
285
Jens Axboe53cdc682006-10-18 11:50:58 +0200286 /*
287 * A file may not be a file descriptor, let the io engine decide
288 */
289 union {
290 unsigned long file_data;
Jens Axboee26f8f72007-02-17 04:39:54 +0100291 int fd;
Jens Axboe53cdc682006-10-18 11:50:58 +0200292 };
Jens Axboe7bb48f82007-03-27 15:30:28 +0200293
294 /*
295 * filename and possible memory mapping
296 */
Jens Axboe1315a682007-03-13 11:25:07 +0100297 char *file_name;
Jens Axboe53cdc682006-10-18 11:50:58 +0200298 void *mmap;
Jens Axboe5e6c2062007-05-16 14:40:29 +0200299 unsigned int major, minor;
Jens Axboe7bb48f82007-03-27 15:30:28 +0200300
301 /*
302 * size of the file, offset into file, and io size from that offset
303 */
Jens Axboe53cdc682006-10-18 11:50:58 +0200304 unsigned long long real_file_size;
305 unsigned long long file_offset;
Jens Axboe7bb48f82007-03-27 15:30:28 +0200306 unsigned long long io_size;
307
Jens Axboe53cdc682006-10-18 11:50:58 +0200308 unsigned long long last_pos;
Jens Axboe02bcaa82006-11-24 10:42:00 +0100309 unsigned long long last_completed_pos;
Jens Axboe53cdc682006-10-18 11:50:58 +0200310
Jens Axboe1c9e06e2007-02-11 04:07:57 +0100311 /*
312 * block map for random io
313 */
Jens Axboe53cdc682006-10-18 11:50:58 +0200314 unsigned long *file_map;
315 unsigned int num_maps;
Jens Axboe1c9e06e2007-02-11 04:07:57 +0100316 unsigned int last_free_lookup;
Jens Axboe9b031dc2006-12-15 16:01:54 +0100317
Jens Axboe0ad920e2007-03-13 11:06:45 +0100318 int references;
Jens Axboef11bd942007-03-13 10:16:34 +0100319 enum fio_file_flags flags;
Jens Axboe53cdc682006-10-18 11:50:58 +0200320};
321
Jens Axboeb2560f32007-03-06 12:43:03 +0100322/*
323 * How many depth levels to log
324 */
325#define FIO_IO_U_MAP_NR 8
Jens Axboea9a18a32007-07-06 14:09:49 +0200326#define FIO_IO_U_LAT_U_NR 10
327#define FIO_IO_U_LAT_M_NR 12
Jens Axboeb2560f32007-03-06 12:43:03 +0100328
Jens Axboe079ad092007-02-20 13:58:20 +0100329struct thread_stat {
Jens Axboe756867b2007-03-06 15:19:24 +0100330 char *name;
331 char *verror;
332 int error;
333 int groupid;
334 pid_t pid;
335 char *description;
Jens Axboe6586ee82007-03-06 19:46:09 +0100336 int members;
Jens Axboe756867b2007-03-06 15:19:24 +0100337
Jens Axboe079ad092007-02-20 13:58:20 +0100338 struct io_log *slat_log;
339 struct io_log *clat_log;
340 struct io_log *bw_log;
341
342 /*
343 * bandwidth and latency stats
344 */
345 struct io_stat clat_stat[2]; /* completion latency */
346 struct io_stat slat_stat[2]; /* submission latency */
347 struct io_stat bw_stat[2]; /* bandwidth stats */
348
349 unsigned long long stat_io_bytes[2];
350 struct timeval stat_sample_time[2];
351
352 /*
353 * fio system usage accounting
354 */
355 struct rusage ru_start;
356 struct rusage ru_end;
357 unsigned long usr_time;
358 unsigned long sys_time;
359 unsigned long ctx;
Jens Axboe81887d52007-09-07 20:36:08 +0200360 unsigned long minf, majf;
Jens Axboe079ad092007-02-20 13:58:20 +0100361
Jens Axboeb2560f32007-03-06 12:43:03 +0100362 /*
363 * IO depth and latency stats
364 */
365 unsigned int io_u_map[FIO_IO_U_MAP_NR];
Jens Axboe04a0fea2007-06-19 12:48:41 +0200366 unsigned int io_u_lat_u[FIO_IO_U_LAT_U_NR];
367 unsigned int io_u_lat_m[FIO_IO_U_LAT_M_NR];
Jens Axboeb3605062007-03-12 14:19:47 +0100368 unsigned long total_io_u[2];
Jens Axboe30061b92007-04-17 13:31:34 +0200369 unsigned long short_io_u[2];
Jens Axboe756867b2007-03-06 15:19:24 +0100370
371 unsigned long long io_bytes[2];
372 unsigned long runtime[2];
373 unsigned long total_run_time;
Jens Axboeb2560f32007-03-06 12:43:03 +0100374};
Jens Axboe71619dc2007-01-13 23:56:33 +0100375
Jens Axboe564ca972007-12-14 12:21:19 +0100376struct bssplit {
377 unsigned int bs;
378 unsigned char perc;
379};
380
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100381struct thread_options {
Jens Axboeb1ec1da2007-02-23 10:29:16 +0100382 int pad;
Jens Axboe61697c32007-02-05 15:04:46 +0100383 char *description;
Jens Axboeb4692822006-10-27 13:43:22 +0200384 char *name;
Jens Axboeef899b62006-06-06 09:31:00 +0200385 char *directory;
Jens Axboe13f8e2d2006-10-24 09:29:45 +0200386 char *filename;
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100387 char *opendir;
Jens Axboe09629a92007-03-09 09:00:06 +0100388 char *ioengine;
Jens Axboe413dd452007-02-23 09:26:09 +0100389 enum td_ddir td_ddir;
Jens Axboe211097b2007-03-22 18:56:45 +0100390 unsigned int ddir_nr;
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100391 unsigned int iodepth;
392 unsigned int iodepth_low;
393 unsigned int iodepth_batch;
394
395 unsigned long long size;
Shawn Lewisaa31f1f2008-01-11 09:45:11 +0100396 unsigned int fill_device;
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100397 unsigned long long file_size_low;
398 unsigned long long file_size_high;
399 unsigned long long start_offset;
400
401 unsigned int bs[2];
402 unsigned int min_bs[2];
403 unsigned int max_bs[2];
Jens Axboe564ca972007-12-14 12:21:19 +0100404 struct bssplit *bssplit;
405 unsigned int bssplit_nr;
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100406
407 unsigned int nr_files;
408 unsigned int open_files;
Jens Axboee9c047a2006-06-07 21:13:04 +0200409
Jens Axboe9158d2f2006-10-27 14:27:39 +0200410 unsigned int odirect;
411 unsigned int invalidate_cache;
412 unsigned int create_serialize;
413 unsigned int create_fsync;
414 unsigned int end_fsync;
415 unsigned int sync_io;
416 unsigned int verify;
Shawn Lewise84c73a2007-08-02 22:19:32 +0200417 unsigned int do_verify;
Jens Axboe160b9662007-03-27 10:59:49 +0200418 unsigned int verifysort;
Jens Axboea59e1702007-07-30 08:53:27 +0200419 unsigned int verify_interval;
420 unsigned int verify_offset;
Jens Axboe90059d62007-07-30 09:33:12 +0200421 unsigned int verify_pattern;
422 unsigned int verify_pattern_bytes;
Jens Axboea12a3b42007-08-09 10:20:54 +0200423 unsigned int verify_fatal;
Jens Axboe9158d2f2006-10-27 14:27:39 +0200424 unsigned int use_thread;
425 unsigned int unlink;
426 unsigned int do_disk_util;
427 unsigned int override_sync;
428 unsigned int rand_repeatable;
429 unsigned int write_lat_log;
430 unsigned int write_bw_log;
Jens Axboebb8895e2006-10-30 15:14:48 +0100431 unsigned int norandommap;
Jens Axboe690adba2006-10-30 15:25:09 +0100432 unsigned int bs_unaligned;
Jens Axboeebb14152007-03-13 14:42:15 +0100433 unsigned int fsync_on_close;
Jens Axboee9c047a2006-06-07 21:13:04 +0200434
Jens Axboe56bb17f2006-12-20 20:27:36 +0100435 unsigned int hugepage_size;
Jens Axboea00735e2006-11-03 08:58:08 +0100436 unsigned int rw_min_bs;
Jens Axboeebac4652005-12-08 15:25:21 +0100437 unsigned int thinktime;
Jens Axboe48097d52007-02-17 06:30:44 +0100438 unsigned int thinktime_spin;
Jens Axboe9c1f7432007-01-03 20:43:19 +0100439 unsigned int thinktime_blocks;
Jens Axboeebac4652005-12-08 15:25:21 +0100440 unsigned int fsync_blocks;
441 unsigned int start_delay;
Jens Axboe0db26792007-05-16 08:59:27 +0200442 unsigned long long timeout;
Jens Axboeebac4652005-12-08 15:25:21 +0100443 unsigned int overwrite;
Jens Axboeebac4652005-12-08 15:25:21 +0100444 unsigned int bw_avg_time;
Jens Axboeebac4652005-12-08 15:25:21 +0100445 unsigned int loops;
Jens Axboe20dc95c2005-12-09 10:29:35 +0100446 unsigned long long zone_size;
447 unsigned long long zone_skip;
Jens Axboee9c047a2006-06-07 21:13:04 +0200448 enum fio_memtype mem_type;
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100449
Jens Axboeebac4652005-12-08 15:25:21 +0100450 unsigned int stonewall;
Jens Axboeb3d62a72007-03-20 14:23:26 +0100451 unsigned int new_group;
Jens Axboeebac4652005-12-08 15:25:21 +0100452 unsigned int numjobs;
Jens Axboeebac4652005-12-08 15:25:21 +0100453 os_cpu_mask_t cpumask;
Jens Axboe375b2692007-05-22 09:13:02 +0200454 unsigned int cpumask_set;
Jens Axboeaea47d42006-05-26 19:27:29 +0200455 unsigned int iolog;
Jens Axboea6ccc7b2006-06-02 10:14:15 +0200456 unsigned int rwmixcycle;
Jens Axboee47f7992007-03-21 14:05:39 +0100457 unsigned int rwmix[2];
Jens Axboeb6f4d882006-06-02 10:32:51 +0200458 unsigned int nice;
Jens Axboe0aabe162007-02-23 08:45:55 +0100459 unsigned int file_service_type;
Jens Axboeb2560f32007-03-06 12:43:03 +0100460 unsigned int group_reporting;
Jens Axboed2f3ac32007-03-22 19:24:09 +0100461 unsigned int fadvise_hint;
Jens Axboee9459e52007-04-17 15:46:32 +0200462 unsigned int zero_buffers;
Jens Axboecf4464c2007-04-17 20:14:42 +0200463 unsigned int time_based;
Jens Axboeaea47d42006-05-26 19:27:29 +0200464
Jens Axboe076efc72006-10-27 11:24:25 +0200465 char *read_iolog_file;
466 char *write_iolog_file;
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100467
468 /*
469 * Pre-run and post-run shell
470 */
471 char *exec_prerun;
472 char *exec_postrun;
473
474 unsigned int rate;
475 unsigned int ratemin;
476 unsigned int ratecycle;
477 unsigned int rate_iops;
478 unsigned int rate_iops_min;
479
480 char *ioscheduler;
481
482 /*
483 * CPU "io" cycle burner
484 */
485 unsigned int cpuload;
486 unsigned int cpucycle;
487};
488
Jens Axboee4e33252007-03-21 13:07:54 +0100489#define FIO_VERROR_SIZE 128
490
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100491/*
492 * This describes a single thread/process executing a fio job.
493 */
494struct thread_data {
495 struct thread_options o;
Jens Axboee4e33252007-03-21 13:07:54 +0100496 char verror[FIO_VERROR_SIZE];
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100497 pthread_t thread;
498 int thread_number;
499 int groupid;
500 struct thread_stat ts;
501 struct fio_file *files;
502 unsigned int files_index;
503 unsigned int nr_open_files;
Jens Axboe1020a132007-03-29 11:15:06 +0200504 unsigned int nr_done_files;
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100505 unsigned int nr_normal_files;
506 union {
507 unsigned int next_file;
508 os_random_state_t next_file_state;
509 };
510 int error;
Jens Axboe20e354e2007-07-23 14:36:16 +0200511 int done;
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100512 pid_t pid;
513 char *orig_buffer;
514 size_t orig_buffer_size;
515 volatile int terminate;
516 volatile int runstate;
517 unsigned int ioprio;
Jens Axboeac684782007-11-08 08:29:07 +0100518 unsigned int ioprio_set;
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100519 unsigned int last_was_sync;
520
521 char *mmapfile;
522 int mmapfd;
523
Jens Axboe843a7412006-06-01 21:14:21 -0700524 void *iolog_buf;
525 FILE *iolog_f;
Jens Axboeebac4652005-12-08 15:25:21 +0100526
Jens Axboeda867742006-06-06 10:39:10 -0700527 char *sysfs_root;
Jens Axboeda867742006-06-06 10:39:10 -0700528
Jens Axboe6dfd46b2006-06-07 13:57:06 +0200529 os_random_state_t bsrange_state;
530 os_random_state_t verify_state;
Jens Axboeebac4652005-12-08 15:25:21 +0100531
532 int shm_id;
533
Jens Axboee9c047a2006-06-07 21:13:04 +0200534 /*
535 * IO engine hooks, contains everything needed to submit an io_u
536 * to any of the available IO engines.
537 */
Jens Axboe2866c822006-10-09 15:57:48 +0200538 struct ioengine_ops *io_ops;
Jens Axboeebac4652005-12-08 15:25:21 +0100539
Jens Axboee9c047a2006-06-07 21:13:04 +0200540 /*
541 * Current IO depth and list of free and busy io_u's.
542 */
Jens Axboeebac4652005-12-08 15:25:21 +0100543 unsigned int cur_depth;
544 struct list_head io_u_freelist;
545 struct list_head io_u_busylist;
Jens Axboe755200a2007-02-19 13:08:12 +0100546 struct list_head io_u_requeues;
Jens Axboecb5ab512007-02-26 12:57:09 +0100547 unsigned int io_u_queued;
Jens Axboeebac4652005-12-08 15:25:21 +0100548
Jens Axboee9c047a2006-06-07 21:13:04 +0200549 /*
550 * Rate state
551 */
Jens Axboeebac4652005-12-08 15:25:21 +0100552 unsigned long rate_usec_cycle;
553 long rate_pending_usleep;
554 unsigned long rate_bytes;
Jens Axboe4e991c22007-03-15 11:41:11 +0100555 unsigned long rate_blocks;
Jens Axboeebac4652005-12-08 15:25:21 +0100556 struct timeval lastrate;
557
Jens Axboeebac4652005-12-08 15:25:21 +0100558 unsigned long long total_io_size;
559
Jens Axboe755200a2007-02-19 13:08:12 +0100560 unsigned long io_issues[2];
Jens Axboe9104f872005-12-28 23:50:45 +0100561 unsigned long long io_blocks[2];
562 unsigned long long io_bytes[2];
Jens Axboe48f5abd2007-07-20 13:25:04 +0200563 unsigned long long io_skip_bytes;
Jens Axboe9104f872005-12-28 23:50:45 +0100564 unsigned long long this_io_bytes[2];
Jens Axboe079ad092007-02-20 13:58:20 +0100565 unsigned long long zone_bytes;
Jens Axboe07739b52007-03-08 20:25:46 +0100566 struct fio_sem *mutex;
Jens Axboeebac4652005-12-08 15:25:21 +0100567
Jens Axboee9c047a2006-06-07 21:13:04 +0200568 /*
569 * State for random io, a bitmap of blocks done vs not done
570 */
Jens Axboe6dfd46b2006-06-07 13:57:06 +0200571 os_random_state_t random_state;
Jens Axboeebac4652005-12-08 15:25:21 +0100572
Jens Axboeebac4652005-12-08 15:25:21 +0100573 struct timeval start; /* start of this loop */
574 struct timeval epoch; /* time job was started */
Jens Axboe38d77ca2007-03-21 14:20:20 +0100575 struct timeval rw_end[2];
Jens Axboea61edde2007-05-15 14:29:58 +0200576 struct timeval last_issue;
Jens Axboe38d77ca2007-03-21 14:20:20 +0100577 unsigned int rw_end_set[2];
Jens Axboeebac4652005-12-08 15:25:21 +0100578
Jens Axboee9c047a2006-06-07 21:13:04 +0200579 /*
Jens Axboee9c047a2006-06-07 21:13:04 +0200580 * read/write mixed workload state
581 */
Jens Axboe6dfd46b2006-06-07 13:57:06 +0200582 os_random_state_t rwmix_state;
Jens Axboeafe24a52007-03-16 20:27:27 +0100583 unsigned long long rwmix_bytes;
Jens Axboea6ccc7b2006-06-02 10:14:15 +0200584 struct timeval rwmix_switch;
Jens Axboee9c047a2006-06-07 21:13:04 +0200585 enum fio_ddir rwmix_ddir;
Jens Axboe211097b2007-03-22 18:56:45 +0100586 unsigned int ddir_nr;
Jens Axboea6ccc7b2006-06-02 10:14:15 +0200587
Jens Axboe4e0ba8a2006-06-06 09:36:28 +0200588 /*
Jens Axboe8de8f042007-03-27 10:36:12 +0200589 * IO history logs for verification. We use a tree for sorting,
590 * if we are overwriting. Otherwise just use a fifo.
Jens Axboee9c047a2006-06-07 21:13:04 +0200591 */
Jens Axboe4b878982007-03-26 09:32:22 +0200592 struct rb_root io_hist_tree;
Jens Axboe8de8f042007-03-27 10:36:12 +0200593 struct list_head io_hist_list;
594
595 /*
596 * For IO replaying
597 */
Jens Axboeaea47d42006-05-26 19:27:29 +0200598 struct list_head io_log_list;
Jens Axboe433afcb2007-02-22 10:39:01 +0100599
600 /*
601 * timeout handling
602 */
603 struct timeval timeout_end;
604 struct itimerval timer;
Jens Axboe1907dbc2007-03-12 11:44:28 +0100605
606 /*
607 * for fileservice, how often to switch to a new file
608 */
609 unsigned int file_service_nr;
610 unsigned int file_service_left;
611 struct fio_file *file_service_file;
Jens Axboe9c60ce62007-03-15 09:14:47 +0100612
613 /*
614 * For generating file sizes
615 */
616 os_random_state_t file_size_state;
Jens Axboeebac4652005-12-08 15:25:21 +0100617};
618
Jens Axboe433afcb2007-02-22 10:39:01 +0100619/*
Jens Axboe0aabe162007-02-23 08:45:55 +0100620 * roundrobin available files, or choose one at random.
621 */
622enum {
623 FIO_FSERVICE_RANDOM = 1,
624 FIO_FSERVICE_RR = 2,
625};
626
627/*
Aaron Carrolle592a062007-09-14 09:49:41 +0200628 * when should interactive ETA output be generated
629 */
630enum {
631 FIO_ETA_AUTO,
632 FIO_ETA_ALWAYS,
633 FIO_ETA_NEVER,
634};
635
636/*
Jens Axboe433afcb2007-02-22 10:39:01 +0100637 * 30 second per-io_u timeout, with 5 second intervals to avoid resetting
638 * the timer on each queue operation.
639 */
640#define IO_U_TIMEOUT_INC 5
641#define IO_U_TIMEOUT 30
642
Jens Axboee1161c32007-02-22 19:36:48 +0100643#define __td_verror(td, err, msg, func) \
Jens Axboeebac4652005-12-08 15:25:21 +0100644 do { \
Jens Axboe19abcd32007-02-21 20:14:33 +0100645 if ((td)->error) \
646 break; \
Jens Axboeebac4652005-12-08 15:25:21 +0100647 int e = (err); \
648 (td)->error = e; \
Jens Axboee1161c32007-02-22 19:36:48 +0100649 snprintf(td->verror, sizeof(td->verror) - 1, "file:%s:%d, func=%s, error=%s", __FILE__, __LINE__, (func), (msg)); \
Jens Axboeebac4652005-12-08 15:25:21 +0100650 } while (0)
651
Jens Axboeb990b5c2006-09-14 09:48:22 +0200652
Jens Axboee1161c32007-02-22 19:36:48 +0100653#define td_verror(td, err, func) \
654 __td_verror((td), (err), strerror((err)), (func))
655#define td_vmsg(td, err, msg, func) \
656 __td_verror((td), (err), (msg), (func))
Jens Axboeb990b5c2006-09-14 09:48:22 +0200657
Jens Axboeebac4652005-12-08 15:25:21 +0100658extern int exitall_on_terminate;
659extern int thread_number;
Jens Axboe9cedf162007-03-12 11:29:30 +0100660extern int nr_process, nr_thread;
Jens Axboeebac4652005-12-08 15:25:21 +0100661extern int shm_id;
662extern int groupid;
Jens Axboec6ae0a52006-06-12 11:04:44 +0200663extern int terse_output;
Jens Axboeeb8bbf42006-06-08 21:40:11 +0200664extern FILE *f_out;
665extern FILE *f_err;
Jens Axboe53cdc682006-10-18 11:50:58 +0200666extern int temp_stall_ts;
Jens Axboe1e97cce2006-12-05 11:44:16 +0100667extern unsigned long long mlock_size;
Jens Axboecfc99db2007-03-14 10:34:47 +0100668extern unsigned long page_mask, page_size;
Jens Axboe4241ea82007-09-12 08:18:36 +0200669extern int read_only;
Aaron Carrolle592a062007-09-14 09:49:41 +0200670extern int eta_print;
Jens Axboeebac4652005-12-08 15:25:21 +0100671
672extern struct thread_data *threads;
673
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100674#define td_read(td) ((td)->o.td_ddir & TD_DDIR_READ)
675#define td_write(td) ((td)->o.td_ddir & TD_DDIR_WRITE)
676#define td_rw(td) (((td)->o.td_ddir & TD_DDIR_RW) == TD_DDIR_RW)
677#define td_random(td) ((td)->o.td_ddir & TD_DDIR_RAND)
Jens Axboeebac4652005-12-08 15:25:21 +0100678
Jens Axboe7101d9c2007-09-12 13:12:39 +0200679static inline void fio_ro_check(struct thread_data *td, struct io_u *io_u)
680{
681 assert(!(io_u->ddir == DDIR_WRITE && !td_write(td)));
682}
683
Jens Axboeebac4652005-12-08 15:25:21 +0100684#define BLOCKS_PER_MAP (8 * sizeof(long))
Jens Axboe509eab12007-12-14 12:42:53 +0100685#define TO_MAP_BLOCK(td, f, b) ((b) - ((f)->file_offset / (unsigned long long) (td)->o.rw_min_bs))
Jens Axboe53cdc682006-10-18 11:50:58 +0200686#define RAND_MAP_IDX(td, f, b) (TO_MAP_BLOCK(td, f, b) / BLOCKS_PER_MAP)
687#define RAND_MAP_BIT(td, f, b) (TO_MAP_BLOCK(td, f, b) & (BLOCKS_PER_MAP - 1))
Jens Axboeebac4652005-12-08 15:25:21 +0100688
689#define MAX_JOBS (1024)
690
Jens Axboe87dc1ab2006-10-24 14:41:26 +0200691static inline int should_fsync(struct thread_data *td)
692{
693 if (td->last_was_sync)
694 return 0;
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100695 if (td->o.odirect)
Jens Axboe87dc1ab2006-10-24 14:41:26 +0200696 return 0;
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100697 if (td_write(td) || td_rw(td) || td->o.override_sync)
Jens Axboe87dc1ab2006-10-24 14:41:26 +0200698 return 1;
699
700 return 0;
701}
702
Jens Axboe1c9e06e2007-02-11 04:07:57 +0100703/*
704 * Disk utils as read in /sys/block/<dev>/stat
705 */
Jens Axboeebac4652005-12-08 15:25:21 +0100706struct disk_util_stat {
707 unsigned ios[2];
708 unsigned merges[2];
709 unsigned long long sectors[2];
710 unsigned ticks[2];
711 unsigned io_ticks;
712 unsigned time_in_queue;
713};
714
Jens Axboe1c9e06e2007-02-11 04:07:57 +0100715/*
716 * Per-device disk util management
717 */
Jens Axboeebac4652005-12-08 15:25:21 +0100718struct disk_util {
719 struct list_head list;
720
721 char *name;
Jens Axboee11c4102007-04-03 16:33:04 -0700722 char *sysfs_root;
Jens Axboeebac4652005-12-08 15:25:21 +0100723 char path[256];
Jens Axboe07e5b262007-04-02 14:46:07 +0200724 int major, minor;
Jens Axboeebac4652005-12-08 15:25:21 +0100725
726 struct disk_util_stat dus;
727 struct disk_util_stat last_dus;
728
729 unsigned long msec;
730 struct timeval time;
731};
732
Jens Axboeebac4652005-12-08 15:25:21 +0100733#define DISK_UTIL_MSEC (250)
734
Jens Axboe67962092006-06-07 08:45:01 +0200735/*
736 * Log exports
737 */
Jens Axboef29b25a2007-07-23 08:56:43 +0200738enum file_log_act {
739 FIO_LOG_ADD_FILE,
740 FIO_LOG_OPEN_FILE,
741 FIO_LOG_CLOSE_FILE,
742};
743
Jens Axboe72cb9712007-02-20 20:54:45 +0100744extern int __must_check read_iolog_get(struct thread_data *, struct io_u *);
Jens Axboef29b25a2007-07-23 08:56:43 +0200745extern void log_io_u(struct thread_data *, struct io_u *);
746extern void log_file(struct thread_data *, struct fio_file *, enum file_log_act);
Jens Axboe72cb9712007-02-20 20:54:45 +0100747extern int __must_check init_iolog(struct thread_data *td);
Jens Axboe67962092006-06-07 08:45:01 +0200748extern void log_io_piece(struct thread_data *, struct io_u *);
749extern void prune_io_piece_log(struct thread_data *);
750extern void write_iolog_close(struct thread_data *);
751
752/*
753 * Logging
754 */
Jens Axboe1e97cce2006-12-05 11:44:16 +0100755extern void add_clat_sample(struct thread_data *, enum fio_ddir, unsigned long);
756extern void add_slat_sample(struct thread_data *, enum fio_ddir, unsigned long);
757extern void add_bw_sample(struct thread_data *, enum fio_ddir, struct timeval *);
Jens Axboe67962092006-06-07 08:45:01 +0200758extern void show_run_stats(void);
759extern void init_disk_util(struct thread_data *);
760extern void update_rusage_stat(struct thread_data *);
761extern void update_io_ticks(void);
762extern void disk_util_timer_arm(void);
Jens Axboe8914a9d2006-06-07 11:14:56 +0200763extern void setup_log(struct io_log **);
764extern void finish_log(struct thread_data *, struct io_log *, const char *);
Jens Axboebb3884d2007-01-17 17:23:11 +1100765extern void __finish_log(struct io_log *, const char *);
Jens Axboebb3884d2007-01-17 17:23:11 +1100766extern struct io_log *agg_io_log[2];
767extern int write_bw_log;
768extern void add_agg_sample(unsigned long, enum fio_ddir);
Jens Axboe67962092006-06-07 08:45:01 +0200769
770/*
771 * Time functions
772 */
Shawn Lewis10927312007-11-21 09:38:13 +0100773extern unsigned long long utime_since(struct timeval *, struct timeval *);
774extern unsigned long long utime_since_now(struct timeval *);
Jens Axboe67962092006-06-07 08:45:01 +0200775extern unsigned long mtime_since(struct timeval *, struct timeval *);
776extern unsigned long mtime_since_now(struct timeval *);
777extern unsigned long time_since_now(struct timeval *);
Jens Axboe263e5292006-10-18 15:37:01 +0200778extern unsigned long mtime_since_genesis(void);
Jens Axboeb990b5c2006-09-14 09:48:22 +0200779extern void __usec_sleep(unsigned int);
Jens Axboe67962092006-06-07 08:45:01 +0200780extern void usec_sleep(struct thread_data *, unsigned long);
Jens Axboe413dd452007-02-23 09:26:09 +0100781extern void rate_throttle(struct thread_data *, unsigned long, unsigned int);
Jens Axboe6043c572006-11-03 11:37:47 +0100782extern void fill_start_time(struct timeval *);
Jens Axboe02bcaa82006-11-24 10:42:00 +0100783extern void fio_gettime(struct timeval *, void *);
Jens Axboea2f77c92007-02-22 11:53:00 +0100784extern void set_genesis_time(void);
Jens Axboe67962092006-06-07 08:45:01 +0200785
Jens Axboe8914a9d2006-06-07 11:14:56 +0200786/*
Jens Axboe214e1ec2007-03-15 10:48:13 +0100787 * Init/option functions
Jens Axboe8914a9d2006-06-07 11:14:56 +0200788 */
Jens Axboe72cb9712007-02-20 20:54:45 +0100789extern int __must_check parse_options(int, char **);
Jens Axboe214e1ec2007-03-15 10:48:13 +0100790extern int fio_option_parse(struct thread_data *, const char *);
791extern int fio_cmd_option_parse(struct thread_data *, const char *, char *);
792extern void fio_fill_default_options(struct thread_data *);
793extern int fio_show_option_help(const char *);
794extern void fio_options_dup_and_init(struct option *);
Jens Axboed23bb322007-03-23 15:57:56 +0100795extern void options_mem_dupe(struct thread_data *);
796extern void options_mem_free(struct thread_data *);
Jens Axboe214e1ec2007-03-15 10:48:13 +0100797#define FIO_GETOPT_JOB 0x89988998
798#define FIO_NR_OPTIONS 128
Jens Axboe8914a9d2006-06-07 11:14:56 +0200799
Jens Axboebbfd6b02006-06-07 19:42:54 +0200800/*
Jens Axboe53cdc682006-10-18 11:50:58 +0200801 * File setup/shutdown
802 */
803extern void close_files(struct thread_data *);
Jens Axboeb2fdda42007-02-20 20:52:51 +0100804extern int __must_check setup_files(struct thread_data *);
805extern int __must_check open_files(struct thread_data *);
806extern int __must_check file_invalidate_cache(struct thread_data *, struct fio_file *);
Jens Axboeb5af8292007-03-08 12:43:13 +0100807extern int __must_check generic_open_file(struct thread_data *, struct fio_file *);
808extern void generic_close_file(struct thread_data *, struct fio_file *);
Jens Axboef29b25a2007-07-23 08:56:43 +0200809extern int add_file(struct thread_data *, const char *);
Jens Axboe0ad920e2007-03-13 11:06:45 +0100810extern void get_file(struct fio_file *);
811extern void put_file(struct thread_data *, struct fio_file *);
Jens Axboebbf6b542007-03-13 15:28:55 +0100812extern int add_dir_files(struct thread_data *, const char *);
Jens Axboe68727072007-03-15 20:49:25 +0100813extern int init_random_map(struct thread_data *);
Jens Axboecade3ef2007-03-23 15:29:45 +0100814extern void dup_files(struct thread_data *, struct thread_data *);
Jens Axboef29b25a2007-07-23 08:56:43 +0200815extern int get_fileno(struct thread_data *, const char *);
816extern void free_release_files(struct thread_data *);
Jens Axboe53cdc682006-10-18 11:50:58 +0200817
818/*
Jens Axboe263e5292006-10-18 15:37:01 +0200819 * ETA/status stuff
820 */
821extern void print_thread_status(void);
822extern void print_status_init(int);
823
824/*
Jens Axboe9f8f2062007-04-02 15:08:01 +0200825 * disk util stuff
826 */
827#ifdef FIO_HAVE_DISK_UTIL
828extern void show_disk_util(void);
829extern void disk_util_timer_arm(void);
830extern void init_disk_util(struct thread_data *);
831extern void update_io_ticks(void);
832#else
833#define show_disk_util()
834#define disk_util_timer_arm()
835#define init_disk_util(td)
836#define update_io_ticks()
837#endif
838
839/*
Jens Axboe263e5292006-10-18 15:37:01 +0200840 * Thread life cycle. Once a thread has a runstate beyond TD_INITIALIZED, it
841 * will never back again. It may cycle between running/verififying/fsyncing.
842 * Once the thread reaches TD_EXITED, it is just waiting for the core to
843 * reap it.
844 */
845enum {
846 TD_NOT_CREATED = 0,
847 TD_CREATED,
848 TD_INITIALIZED,
849 TD_RUNNING,
850 TD_VERIFYING,
851 TD_FSYNCING,
852 TD_EXITED,
853 TD_REAPED,
854};
855
856/*
Jens Axboee29d1b72006-10-18 15:43:15 +0200857 * Verify helpers
858 */
859extern void populate_verify_io_u(struct thread_data *, struct io_u *);
Jens Axboeb2fdda42007-02-20 20:52:51 +0100860extern int __must_check get_next_verify(struct thread_data *td, struct io_u *);
Jens Axboe36690c92007-03-26 10:23:34 +0200861extern int __must_check verify_io_u(struct thread_data *, struct io_u *);
Jens Axboee29d1b72006-10-18 15:43:15 +0200862
863/*
Jens Axboe2f9ade32006-10-20 11:25:52 +0200864 * Memory helpers
865 */
Jens Axboeb2fdda42007-02-20 20:52:51 +0100866extern int __must_check fio_pin_memory(void);
Jens Axboe2f9ade32006-10-20 11:25:52 +0200867extern void fio_unpin_memory(void);
Jens Axboeb2fdda42007-02-20 20:52:51 +0100868extern int __must_check allocate_io_mem(struct thread_data *);
Jens Axboe2f9ade32006-10-20 11:25:52 +0200869extern void free_io_mem(struct thread_data *);
870
871/*
Jens Axboe10ba5352006-10-20 11:39:27 +0200872 * io unit handling
873 */
874#define queue_full(td) list_empty(&(td)->io_u_freelist)
875extern struct io_u *__get_io_u(struct thread_data *);
Jens Axboe3d7c3912007-02-19 13:16:12 +0100876extern struct io_u *get_io_u(struct thread_data *);
Jens Axboe10ba5352006-10-20 11:39:27 +0200877extern void put_io_u(struct thread_data *, struct io_u *);
Jens Axboe755200a2007-02-19 13:08:12 +0100878extern void requeue_io_u(struct thread_data *, struct io_u **);
Jens Axboed7762cf2007-02-23 12:34:57 +0100879extern long __must_check io_u_sync_complete(struct thread_data *, struct io_u *);
880extern long __must_check io_u_queued_complete(struct thread_data *, int);
Jens Axboe7e77dd02007-02-20 10:57:34 +0100881extern void io_u_queued(struct thread_data *, struct io_u *);
Jens Axboe54517922007-03-05 10:06:06 +0100882extern void io_u_log_error(struct thread_data *, struct io_u *);
Jens Axboe433afcb2007-02-22 10:39:01 +0100883extern void io_u_init_timeout(void);
884extern void io_u_set_timeout(struct thread_data *);
Jens Axboeb3605062007-03-12 14:19:47 +0100885extern void io_u_mark_depth(struct thread_data *, struct io_u *);
Jens Axboe10ba5352006-10-20 11:39:27 +0200886
887/*
888 * io engine entry points
889 */
Jens Axboeb2fdda42007-02-20 20:52:51 +0100890extern int __must_check td_io_init(struct thread_data *);
891extern int __must_check td_io_prep(struct thread_data *, struct io_u *);
892extern int __must_check td_io_queue(struct thread_data *, struct io_u *);
893extern int __must_check td_io_sync(struct thread_data *, struct fio_file *);
Jens Axboee7d2e612007-12-11 10:49:39 +0100894extern int __must_check td_io_getevents(struct thread_data *, unsigned int, unsigned int, struct timespec *);
Jens Axboeb2fdda42007-02-20 20:52:51 +0100895extern int __must_check td_io_commit(struct thread_data *);
Jens Axboeb5af8292007-03-08 12:43:13 +0100896extern int __must_check td_io_open_file(struct thread_data *, struct fio_file *);
897extern void td_io_close_file(struct thread_data *, struct fio_file *);
Jens Axboe10ba5352006-10-20 11:39:27 +0200898
899/*
Jens Axboefb7b71a2007-05-15 08:44:04 +0200900 * blktrace support
901 */
Jens Axboe5e62c222007-05-22 13:27:30 +0200902#ifdef FIO_HAVE_BLKTRACE
Jens Axboefb7b71a2007-05-15 08:44:04 +0200903extern int is_blktrace(const char *);
904extern int load_blktrace(struct thread_data *, const char *);
Jens Axboe5e62c222007-05-22 13:27:30 +0200905#endif
Jens Axboefb7b71a2007-05-15 08:44:04 +0200906
907/*
Jens Axboe3b70d7e2006-06-08 21:48:46 +0200908 * If logging output to a file, stderr should go to both stderr and f_err
909 */
910#define log_err(args...) do { \
911 fprintf(f_err, ##args); \
912 if (f_err != stderr) \
913 fprintf(stderr, ##args); \
914 } while (0)
915
Jens Axboe9c60ce62007-03-15 09:14:47 +0100916#define log_info(args...) fprintf(f_out, ##args)
917
Joel Becker9728ce32007-03-01 08:24:39 +0100918FILE *get_f_out(void);
919FILE *get_f_err(void);
920
Jens Axboe2866c822006-10-09 15:57:48 +0200921struct ioengine_ops {
Jens Axboe5f350952006-11-07 15:20:59 +0100922 struct list_head list;
Jens Axboe2866c822006-10-09 15:57:48 +0200923 char name[16];
924 int version;
925 int flags;
Jens Axboeea2877a2006-10-10 08:30:24 +0200926 int (*setup)(struct thread_data *);
Jens Axboe2866c822006-10-09 15:57:48 +0200927 int (*init)(struct thread_data *);
928 int (*prep)(struct thread_data *, struct io_u *);
929 int (*queue)(struct thread_data *, struct io_u *);
Jens Axboe755200a2007-02-19 13:08:12 +0100930 int (*commit)(struct thread_data *);
Jens Axboee7d2e612007-12-11 10:49:39 +0100931 int (*getevents)(struct thread_data *, unsigned int, unsigned int, struct timespec *);
Jens Axboe2866c822006-10-09 15:57:48 +0200932 struct io_u *(*event)(struct thread_data *, int);
933 int (*cancel)(struct thread_data *, struct io_u *);
934 void (*cleanup)(struct thread_data *);
Jens Axboeb5af8292007-03-08 12:43:13 +0100935 int (*open_file)(struct thread_data *, struct fio_file *);
936 void (*close_file)(struct thread_data *, struct fio_file *);
Jens Axboe2866c822006-10-09 15:57:48 +0200937 void *data;
938 void *dlhandle;
939};
940
Jens Axboe1e204992007-12-11 10:54:26 +0100941#define FIO_IOOPS_VERSION 8
Jens Axboe2866c822006-10-09 15:57:48 +0200942
Jens Axboeb4692822006-10-27 13:43:22 +0200943extern struct ioengine_ops *load_ioengine(struct thread_data *, const char *);
Jens Axboeb2fdda42007-02-20 20:52:51 +0100944extern void register_ioengine(struct ioengine_ops *);
Jens Axboe5f350952006-11-07 15:20:59 +0100945extern void unregister_ioengine(struct ioengine_ops *);
Jens Axboe2866c822006-10-09 15:57:48 +0200946extern void close_ioengine(struct thread_data *);
947
948/*
949 * Mark unused variables passed to ops functions as unused, to silence gcc
950 */
951#define fio_unused __attribute((__unused__))
Jens Axboe5f350952006-11-07 15:20:59 +0100952#define fio_init __attribute__((constructor))
953#define fio_exit __attribute__((destructor))
Jens Axboe2866c822006-10-09 15:57:48 +0200954
Jens Axboe34572e22006-10-20 09:33:18 +0200955#define for_each_td(td, i) \
956 for ((i) = 0, (td) = &threads[0]; (i) < (int) thread_number; (i)++, (td)++)
Jens Axboe53cdc682006-10-18 11:50:58 +0200957#define for_each_file(td, f, i) \
Jens Axboe2dc1bbe2007-03-15 15:01:33 +0100958 for ((i) = 0, (f) = &(td)->files[0]; (i) < (td)->o.nr_files; (i)++, (f)++)
Jens Axboe53cdc682006-10-18 11:50:58 +0200959
Jens Axboe0032bf92007-02-13 17:39:56 +0100960#define fio_assert(td, cond) do { \
961 if (!(cond)) { \
Jens Axboe340fd242007-02-13 20:09:10 +0100962 int *__foo = NULL; \
Jens Axboe0032bf92007-02-13 17:39:56 +0100963 fprintf(stderr, "file:%s:%d, assert %s failed\n", __FILE__, __LINE__, #cond); \
964 (td)->runstate = TD_EXITED; \
Jens Axboe437c9b72007-02-13 18:20:37 +0100965 (td)->error = EFAULT; \
Jens Axboe340fd242007-02-13 20:09:10 +0100966 *__foo = 0; \
Jens Axboe0032bf92007-02-13 17:39:56 +0100967 } \
968} while (0)
969
Jens Axboe9bf27b42007-03-27 19:49:31 +0200970static inline void clear_error(struct thread_data *td)
971{
972 td->error = 0;
973 td->verror[0] = '\0';
974}
975
Jens Axboeebac4652005-12-08 15:25:21 +0100976#endif