Commit | Line | Data |
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c9fb4c5b JA |
1 | #include <stdio.h> |
2 | #include <errno.h> | |
3 | #include <assert.h> | |
4 | #include <stdlib.h> | |
5 | #include <stddef.h> | |
6 | #include <signal.h> | |
7 | #include <inttypes.h> | |
8 | ||
9 | #include <sys/types.h> | |
10 | #include <sys/stat.h> | |
11 | #include <sys/ioctl.h> | |
12 | #include <sys/syscall.h> | |
13 | #include <sys/resource.h> | |
c3e2fc25 | 14 | #include <sys/mman.h> |
e31b8288 | 15 | #include <sys/uio.h> |
c9fb4c5b JA |
16 | #include <linux/fs.h> |
17 | #include <fcntl.h> | |
18 | #include <unistd.h> | |
c9fb4c5b JA |
19 | #include <string.h> |
20 | #include <pthread.h> | |
21 | #include <sched.h> | |
22 | ||
74efb029 | 23 | #include "../arch/arch.h" |
57fa61f0 | 24 | #include "../lib/types.h" |
f3e769a4 | 25 | #include "../os/linux/io_uring.h" |
ac122fea | 26 | |
e31b8288 | 27 | #define min(a, b) ((a < b) ? (a) : (b)) |
c3e2fc25 | 28 | |
e31b8288 | 29 | struct io_sq_ring { |
e2239016 JA |
30 | unsigned *head; |
31 | unsigned *tail; | |
32 | unsigned *ring_mask; | |
33 | unsigned *ring_entries; | |
ce1705de | 34 | unsigned *flags; |
e2239016 | 35 | unsigned *array; |
c9fb4c5b JA |
36 | }; |
37 | ||
e31b8288 | 38 | struct io_cq_ring { |
e2239016 JA |
39 | unsigned *head; |
40 | unsigned *tail; | |
41 | unsigned *ring_mask; | |
42 | unsigned *ring_entries; | |
f0403f94 | 43 | struct io_uring_cqe *cqes; |
c9fb4c5b JA |
44 | }; |
45 | ||
701d1277 | 46 | #define DEPTH 128 |
2e7888ef JA |
47 | #define BATCH_SUBMIT 32 |
48 | #define BATCH_COMPLETE 32 | |
c9fb4c5b JA |
49 | |
50 | #define BS 4096 | |
51 | ||
a7086591 JA |
52 | #define MAX_FDS 16 |
53 | ||
c3e2fc25 | 54 | static unsigned sq_ring_mask, cq_ring_mask; |
e39c34dc | 55 | |
a7086591 JA |
56 | struct file { |
57 | unsigned long max_blocks; | |
701d1277 | 58 | unsigned pending_ios; |
48e698fa JA |
59 | int real_fd; |
60 | int fixed_fd; | |
a7086591 JA |
61 | }; |
62 | ||
c9fb4c5b JA |
63 | struct submitter { |
64 | pthread_t thread; | |
f310970e | 65 | int ring_fd; |
c9fb4c5b | 66 | struct drand48_data rand; |
e31b8288 | 67 | struct io_sq_ring sq_ring; |
f0403f94 | 68 | struct io_uring_sqe *sqes; |
e31b8288 | 69 | struct io_cq_ring cq_ring; |
c9fb4c5b JA |
70 | int inflight; |
71 | unsigned long reaps; | |
72 | unsigned long done; | |
73 | unsigned long calls; | |
74 | volatile int finish; | |
701d1277 | 75 | |
48e698fa JA |
76 | __s32 *fds; |
77 | ||
a7086591 JA |
78 | struct file files[MAX_FDS]; |
79 | unsigned nr_files; | |
80 | unsigned cur_file; | |
e39863e3 | 81 | struct iovec iovecs[]; |
c9fb4c5b JA |
82 | }; |
83 | ||
e39863e3 | 84 | static struct submitter *submitter; |
c9fb4c5b JA |
85 | static volatile int finish; |
86 | ||
e39863e3 KB |
87 | static int depth = DEPTH; |
88 | static int batch_submit = BATCH_SUBMIT; | |
89 | static int batch_complete = BATCH_COMPLETE; | |
f0403f94 | 90 | static int polled = 1; /* use IO polling */ |
701d1277 | 91 | static int fixedbufs = 1; /* use fixed user buffers */ |
8c5fa755 | 92 | static int register_files = 1; /* use fixed files */ |
f0403f94 | 93 | static int buffered = 0; /* use buffered IO, not O_DIRECT */ |
3d7d00a3 JA |
94 | static int sq_thread_poll = 0; /* use kernel submission/poller thread */ |
95 | static int sq_thread_cpu = -1; /* pin above thread to this CPU */ | |
8025517d | 96 | static int do_nop = 0; /* no-op SQ ring commands */ |
c9fb4c5b | 97 | |
2ea53ca3 | 98 | static int io_uring_register_buffers(struct submitter *s) |
c9fb4c5b | 99 | { |
8025517d JA |
100 | if (do_nop) |
101 | return 0; | |
102 | ||
2ea53ca3 | 103 | return syscall(__NR_sys_io_uring_register, s->ring_fd, |
e39863e3 | 104 | IORING_REGISTER_BUFFERS, s->iovecs, depth); |
2ea53ca3 JA |
105 | } |
106 | ||
a7abc9fb JA |
107 | static int io_uring_register_files(struct submitter *s) |
108 | { | |
48e698fa | 109 | int i; |
a7abc9fb | 110 | |
8025517d JA |
111 | if (do_nop) |
112 | return 0; | |
113 | ||
48e698fa JA |
114 | s->fds = calloc(s->nr_files, sizeof(__s32)); |
115 | for (i = 0; i < s->nr_files; i++) { | |
116 | s->fds[i] = s->files[i].real_fd; | |
117 | s->files[i].fixed_fd = i; | |
118 | } | |
a7abc9fb | 119 | |
48e698fa | 120 | return syscall(__NR_sys_io_uring_register, s->ring_fd, |
919850d2 | 121 | IORING_REGISTER_FILES, s->fds, s->nr_files); |
a7abc9fb JA |
122 | } |
123 | ||
2ea53ca3 JA |
124 | static int io_uring_setup(unsigned entries, struct io_uring_params *p) |
125 | { | |
126 | return syscall(__NR_sys_io_uring_setup, entries, p); | |
c9fb4c5b JA |
127 | } |
128 | ||
c3e2fc25 JA |
129 | static int io_uring_enter(struct submitter *s, unsigned int to_submit, |
130 | unsigned int min_complete, unsigned int flags) | |
c9fb4c5b | 131 | { |
f310970e | 132 | return syscall(__NR_sys_io_uring_enter, s->ring_fd, to_submit, |
521164fa | 133 | min_complete, flags, NULL, 0); |
c9fb4c5b JA |
134 | } |
135 | ||
77d814a1 | 136 | #ifndef CONFIG_HAVE_GETTID |
c9fb4c5b JA |
137 | static int gettid(void) |
138 | { | |
139 | return syscall(__NR_gettid); | |
140 | } | |
77d814a1 | 141 | #endif |
c9fb4c5b | 142 | |
701d1277 JA |
143 | static unsigned file_depth(struct submitter *s) |
144 | { | |
e39863e3 | 145 | return (depth + s->nr_files - 1) / s->nr_files; |
701d1277 JA |
146 | } |
147 | ||
a7086591 | 148 | static void init_io(struct submitter *s, unsigned index) |
c9fb4c5b | 149 | { |
f0403f94 | 150 | struct io_uring_sqe *sqe = &s->sqes[index]; |
c9fb4c5b | 151 | unsigned long offset; |
a7086591 | 152 | struct file *f; |
c9fb4c5b JA |
153 | long r; |
154 | ||
8025517d JA |
155 | if (do_nop) { |
156 | sqe->opcode = IORING_OP_NOP; | |
157 | return; | |
158 | } | |
159 | ||
701d1277 JA |
160 | if (s->nr_files == 1) { |
161 | f = &s->files[0]; | |
162 | } else { | |
163 | f = &s->files[s->cur_file]; | |
164 | if (f->pending_ios >= file_depth(s)) { | |
165 | s->cur_file++; | |
166 | if (s->cur_file == s->nr_files) | |
167 | s->cur_file = 0; | |
93d1811c | 168 | f = &s->files[s->cur_file]; |
701d1277 JA |
169 | } |
170 | } | |
171 | f->pending_ios++; | |
a7086591 | 172 | |
c9fb4c5b | 173 | lrand48_r(&s->rand, &r); |
a7086591 | 174 | offset = (r % (f->max_blocks - 1)) * BS; |
c9fb4c5b | 175 | |
8c5fa755 JA |
176 | if (register_files) { |
177 | sqe->flags = IOSQE_FIXED_FILE; | |
178 | sqe->fd = f->fixed_fd; | |
179 | } else { | |
180 | sqe->flags = 0; | |
181 | sqe->fd = f->real_fd; | |
182 | } | |
f0403f94 | 183 | if (fixedbufs) { |
48e698fa | 184 | sqe->opcode = IORING_OP_READ_FIXED; |
919850d2 | 185 | sqe->addr = (unsigned long) s->iovecs[index].iov_base; |
f0403f94 | 186 | sqe->len = BS; |
2ea53ca3 | 187 | sqe->buf_index = index; |
f0403f94 | 188 | } else { |
48e698fa | 189 | sqe->opcode = IORING_OP_READV; |
919850d2 | 190 | sqe->addr = (unsigned long) &s->iovecs[index]; |
f0403f94 | 191 | sqe->len = 1; |
2ea53ca3 | 192 | sqe->buf_index = 0; |
f0403f94 | 193 | } |
f0403f94 | 194 | sqe->ioprio = 0; |
f0403f94 | 195 | sqe->off = offset; |
48e698fa | 196 | sqe->user_data = (unsigned long) f; |
c9fb4c5b JA |
197 | } |
198 | ||
a7086591 | 199 | static int prep_more_ios(struct submitter *s, int max_ios) |
c9fb4c5b | 200 | { |
e31b8288 | 201 | struct io_sq_ring *ring = &s->sq_ring; |
e2239016 | 202 | unsigned index, tail, next_tail, prepped = 0; |
c9fb4c5b | 203 | |
c3e2fc25 | 204 | next_tail = tail = *ring->tail; |
c9fb4c5b JA |
205 | do { |
206 | next_tail++; | |
679d8352 | 207 | read_barrier(); |
c3e2fc25 | 208 | if (next_tail == *ring->head) |
c9fb4c5b JA |
209 | break; |
210 | ||
e39c34dc | 211 | index = tail & sq_ring_mask; |
a7086591 | 212 | init_io(s, index); |
c3e2fc25 | 213 | ring->array[index] = index; |
c9fb4c5b JA |
214 | prepped++; |
215 | tail = next_tail; | |
216 | } while (prepped < max_ios); | |
217 | ||
c3e2fc25 | 218 | if (*ring->tail != tail) { |
f0403f94 | 219 | /* order tail store with writes to sqes above */ |
679d8352 | 220 | write_barrier(); |
c3e2fc25 | 221 | *ring->tail = tail; |
679d8352 | 222 | write_barrier(); |
c9fb4c5b JA |
223 | } |
224 | return prepped; | |
225 | } | |
226 | ||
a7086591 | 227 | static int get_file_size(struct file *f) |
c9fb4c5b JA |
228 | { |
229 | struct stat st; | |
230 | ||
48e698fa | 231 | if (fstat(f->real_fd, &st) < 0) |
c9fb4c5b JA |
232 | return -1; |
233 | if (S_ISBLK(st.st_mode)) { | |
234 | unsigned long long bytes; | |
235 | ||
48e698fa | 236 | if (ioctl(f->real_fd, BLKGETSIZE64, &bytes) != 0) |
c9fb4c5b JA |
237 | return -1; |
238 | ||
a7086591 | 239 | f->max_blocks = bytes / BS; |
c9fb4c5b JA |
240 | return 0; |
241 | } else if (S_ISREG(st.st_mode)) { | |
a7086591 | 242 | f->max_blocks = st.st_size / BS; |
c9fb4c5b JA |
243 | return 0; |
244 | } | |
245 | ||
246 | return -1; | |
247 | } | |
248 | ||
249 | static int reap_events(struct submitter *s) | |
250 | { | |
e31b8288 | 251 | struct io_cq_ring *ring = &s->cq_ring; |
f0403f94 | 252 | struct io_uring_cqe *cqe; |
e2239016 | 253 | unsigned head, reaped = 0; |
c9fb4c5b | 254 | |
c3e2fc25 | 255 | head = *ring->head; |
c9fb4c5b | 256 | do { |
701d1277 JA |
257 | struct file *f; |
258 | ||
679d8352 | 259 | read_barrier(); |
c3e2fc25 | 260 | if (head == *ring->tail) |
c9fb4c5b | 261 | break; |
f0403f94 | 262 | cqe = &ring->cqes[head & cq_ring_mask]; |
8025517d | 263 | if (!do_nop) { |
e3466352 | 264 | f = (struct file *) (uintptr_t) cqe->user_data; |
8025517d JA |
265 | f->pending_ios--; |
266 | if (cqe->res != BS) { | |
267 | printf("io: unexpected ret=%d\n", cqe->res); | |
154a9582 | 268 | if (polled && cqe->res == -EOPNOTSUPP) |
8066f6b6 | 269 | printf("Your filesystem/driver/kernel doesn't support polled IO\n"); |
8025517d JA |
270 | return -1; |
271 | } | |
c9fb4c5b JA |
272 | } |
273 | reaped++; | |
274 | head++; | |
c9fb4c5b JA |
275 | } while (1); |
276 | ||
277 | s->inflight -= reaped; | |
c3e2fc25 | 278 | *ring->head = head; |
679d8352 | 279 | write_barrier(); |
c9fb4c5b JA |
280 | return reaped; |
281 | } | |
282 | ||
283 | static void *submitter_fn(void *data) | |
284 | { | |
285 | struct submitter *s = data; | |
ce1705de | 286 | struct io_sq_ring *ring = &s->sq_ring; |
a7086591 | 287 | int ret, prepped; |
c9fb4c5b JA |
288 | |
289 | printf("submitter=%d\n", gettid()); | |
290 | ||
c9fb4c5b JA |
291 | srand48_r(pthread_self(), &s->rand); |
292 | ||
293 | prepped = 0; | |
294 | do { | |
f310970e | 295 | int to_wait, to_submit, this_reap, to_prep; |
c9fb4c5b | 296 | |
e39863e3 KB |
297 | if (!prepped && s->inflight < depth) { |
298 | to_prep = min(depth - s->inflight, batch_submit); | |
a7086591 | 299 | prepped = prep_more_ios(s, to_prep); |
f310970e | 300 | } |
c9fb4c5b JA |
301 | s->inflight += prepped; |
302 | submit_more: | |
303 | to_submit = prepped; | |
304 | submit: | |
e39863e3 | 305 | if (to_submit && (s->inflight + to_submit <= depth)) |
c9fb4c5b JA |
306 | to_wait = 0; |
307 | else | |
e39863e3 | 308 | to_wait = min(s->inflight + to_submit, batch_complete); |
c9fb4c5b | 309 | |
ce1705de JA |
310 | /* |
311 | * Only need to call io_uring_enter if we're not using SQ thread | |
312 | * poll, or if IORING_SQ_NEED_WAKEUP is set. | |
313 | */ | |
314 | if (!sq_thread_poll || (*ring->flags & IORING_SQ_NEED_WAKEUP)) { | |
e0abe388 JA |
315 | unsigned flags = 0; |
316 | ||
317 | if (to_wait) | |
318 | flags = IORING_ENTER_GETEVENTS; | |
e2f309e6 | 319 | if ((*ring->flags & IORING_SQ_NEED_WAKEUP)) |
b532dd6d | 320 | flags |= IORING_ENTER_SQ_WAKEUP; |
e0abe388 | 321 | ret = io_uring_enter(s, to_submit, to_wait, flags); |
ce1705de JA |
322 | s->calls++; |
323 | } | |
c9fb4c5b | 324 | |
ce1705de JA |
325 | /* |
326 | * For non SQ thread poll, we already got the events we needed | |
327 | * through the io_uring_enter() above. For SQ thread poll, we | |
328 | * need to loop here until we find enough events. | |
329 | */ | |
330 | this_reap = 0; | |
331 | do { | |
332 | int r; | |
333 | r = reap_events(s); | |
7d1435e6 JA |
334 | if (r == -1) { |
335 | s->finish = 1; | |
ce1705de | 336 | break; |
7d1435e6 | 337 | } else if (r > 0) |
ce1705de JA |
338 | this_reap += r; |
339 | } while (sq_thread_poll && this_reap < to_wait); | |
c9fb4c5b JA |
340 | s->reaps += this_reap; |
341 | ||
342 | if (ret >= 0) { | |
343 | if (!ret) { | |
344 | to_submit = 0; | |
345 | if (s->inflight) | |
346 | goto submit; | |
347 | continue; | |
348 | } else if (ret < to_submit) { | |
349 | int diff = to_submit - ret; | |
350 | ||
351 | s->done += ret; | |
352 | prepped -= diff; | |
353 | goto submit_more; | |
354 | } | |
355 | s->done += ret; | |
356 | prepped = 0; | |
357 | continue; | |
358 | } else if (ret < 0) { | |
ac122fea | 359 | if (errno == EAGAIN) { |
c9fb4c5b JA |
360 | if (s->finish) |
361 | break; | |
362 | if (this_reap) | |
363 | goto submit; | |
c9fb4c5b JA |
364 | to_submit = 0; |
365 | goto submit; | |
366 | } | |
ac122fea | 367 | printf("io_submit: %s\n", strerror(errno)); |
c9fb4c5b JA |
368 | break; |
369 | } | |
370 | } while (!s->finish); | |
a7086591 | 371 | |
c9fb4c5b JA |
372 | finish = 1; |
373 | return NULL; | |
374 | } | |
375 | ||
376 | static void sig_int(int sig) | |
377 | { | |
378 | printf("Exiting on signal %d\n", sig); | |
e39863e3 | 379 | submitter->finish = 1; |
c9fb4c5b JA |
380 | finish = 1; |
381 | } | |
382 | ||
383 | static void arm_sig_int(void) | |
384 | { | |
385 | struct sigaction act; | |
386 | ||
387 | memset(&act, 0, sizeof(act)); | |
388 | act.sa_handler = sig_int; | |
389 | act.sa_flags = SA_RESTART; | |
390 | sigaction(SIGINT, &act, NULL); | |
391 | } | |
392 | ||
c3e2fc25 JA |
393 | static int setup_ring(struct submitter *s) |
394 | { | |
e31b8288 JA |
395 | struct io_sq_ring *sring = &s->sq_ring; |
396 | struct io_cq_ring *cring = &s->cq_ring; | |
397 | struct io_uring_params p; | |
2ea53ca3 | 398 | int ret, fd; |
c3e2fc25 | 399 | void *ptr; |
c3e2fc25 JA |
400 | |
401 | memset(&p, 0, sizeof(p)); | |
402 | ||
7d1435e6 | 403 | if (polled && !do_nop) |
0e47f11b | 404 | p.flags |= IORING_SETUP_IOPOLL; |
3d7d00a3 | 405 | if (sq_thread_poll) { |
2ea53ca3 | 406 | p.flags |= IORING_SETUP_SQPOLL; |
3ade18a3 | 407 | if (sq_thread_cpu != -1) { |
3d7d00a3 | 408 | p.flags |= IORING_SETUP_SQ_AFF; |
3ade18a3 JA |
409 | p.sq_thread_cpu = sq_thread_cpu; |
410 | } | |
c3e2fc25 JA |
411 | } |
412 | ||
e39863e3 | 413 | fd = io_uring_setup(depth, &p); |
c3e2fc25 JA |
414 | if (fd < 0) { |
415 | perror("io_uring_setup"); | |
416 | return 1; | |
417 | } | |
f310970e | 418 | s->ring_fd = fd; |
2ea53ca3 JA |
419 | |
420 | if (fixedbufs) { | |
421 | ret = io_uring_register_buffers(s); | |
422 | if (ret < 0) { | |
a7abc9fb | 423 | perror("io_uring_register_buffers"); |
2ea53ca3 JA |
424 | return 1; |
425 | } | |
426 | } | |
427 | ||
8c5fa755 JA |
428 | if (register_files) { |
429 | ret = io_uring_register_files(s); | |
430 | if (ret < 0) { | |
431 | perror("io_uring_register_files"); | |
432 | return 1; | |
433 | } | |
a7abc9fb JA |
434 | } |
435 | ||
e2239016 | 436 | ptr = mmap(0, p.sq_off.array + p.sq_entries * sizeof(__u32), |
f310970e JA |
437 | PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd, |
438 | IORING_OFF_SQ_RING); | |
c3e2fc25 JA |
439 | printf("sq_ring ptr = 0x%p\n", ptr); |
440 | sring->head = ptr + p.sq_off.head; | |
441 | sring->tail = ptr + p.sq_off.tail; | |
442 | sring->ring_mask = ptr + p.sq_off.ring_mask; | |
443 | sring->ring_entries = ptr + p.sq_off.ring_entries; | |
ce1705de | 444 | sring->flags = ptr + p.sq_off.flags; |
ac122fea | 445 | sring->array = ptr + p.sq_off.array; |
c3e2fc25 JA |
446 | sq_ring_mask = *sring->ring_mask; |
447 | ||
f0403f94 | 448 | s->sqes = mmap(0, p.sq_entries * sizeof(struct io_uring_sqe), |
f310970e | 449 | PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd, |
f0403f94 JA |
450 | IORING_OFF_SQES); |
451 | printf("sqes ptr = 0x%p\n", s->sqes); | |
c3e2fc25 | 452 | |
f0403f94 | 453 | ptr = mmap(0, p.cq_off.cqes + p.cq_entries * sizeof(struct io_uring_cqe), |
f310970e JA |
454 | PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd, |
455 | IORING_OFF_CQ_RING); | |
c3e2fc25 JA |
456 | printf("cq_ring ptr = 0x%p\n", ptr); |
457 | cring->head = ptr + p.cq_off.head; | |
458 | cring->tail = ptr + p.cq_off.tail; | |
459 | cring->ring_mask = ptr + p.cq_off.ring_mask; | |
460 | cring->ring_entries = ptr + p.cq_off.ring_entries; | |
f0403f94 | 461 | cring->cqes = ptr + p.cq_off.cqes; |
c3e2fc25 JA |
462 | cq_ring_mask = *cring->ring_mask; |
463 | return 0; | |
464 | } | |
465 | ||
2e7888ef JA |
466 | static void file_depths(char *buf) |
467 | { | |
e39863e3 | 468 | struct submitter *s = submitter; |
2e7888ef JA |
469 | char *p; |
470 | int i; | |
471 | ||
ac21bfab | 472 | buf[0] = '\0'; |
2e7888ef JA |
473 | p = buf; |
474 | for (i = 0; i < s->nr_files; i++) { | |
475 | struct file *f = &s->files[i]; | |
476 | ||
477 | if (i + 1 == s->nr_files) | |
478 | p += sprintf(p, "%d", f->pending_ios); | |
479 | else | |
480 | p += sprintf(p, "%d, ", f->pending_ios); | |
481 | } | |
482 | } | |
483 | ||
e39863e3 KB |
484 | static void usage(char *argv) |
485 | { | |
486 | printf("%s [options] -- [filenames]\n" | |
487 | " -d <int> : IO Depth, default %d\n" | |
488 | " -s <int> : Batch submit, default %d\n" | |
489 | " -c <int> : Batch complete, default %d\n", | |
490 | argv, DEPTH, BATCH_SUBMIT, BATCH_COMPLETE); | |
491 | exit(0); | |
492 | } | |
493 | ||
c9fb4c5b JA |
494 | int main(int argc, char *argv[]) |
495 | { | |
e39863e3 | 496 | struct submitter *s; |
05138221 | 497 | unsigned long done, calls, reap; |
e39863e3 | 498 | int err, i, flags, fd, opt; |
2e7888ef | 499 | char *fdepths; |
c3e2fc25 | 500 | void *ret; |
c9fb4c5b | 501 | |
8025517d | 502 | if (!do_nop && argc < 2) { |
e39863e3 | 503 | printf("%s: filename [options]\n", argv[0]); |
c9fb4c5b JA |
504 | return 1; |
505 | } | |
506 | ||
e39863e3 KB |
507 | while ((opt = getopt(argc, argv, "d:s:c:h?")) != -1) { |
508 | switch (opt) { | |
509 | case 'd': | |
510 | depth = atoi(optarg); | |
511 | break; | |
512 | case 's': | |
513 | batch_submit = atoi(optarg); | |
514 | break; | |
515 | case 'c': | |
516 | batch_complete = atoi(optarg); | |
517 | break; | |
518 | case 'h': | |
519 | case '?': | |
520 | default: | |
521 | usage(argv[0]); | |
522 | break; | |
523 | } | |
524 | } | |
525 | ||
d9c50de7 KB |
526 | submitter = malloc(sizeof(*submitter) + depth * sizeof(struct iovec)); |
527 | memset(submitter, 0, sizeof(*submitter) + depth * sizeof(struct iovec)); | |
e39863e3 KB |
528 | s = submitter; |
529 | ||
701d1277 | 530 | flags = O_RDONLY | O_NOATIME; |
a7086591 JA |
531 | if (!buffered) |
532 | flags |= O_DIRECT; | |
533 | ||
e39863e3 | 534 | i = optind; |
8025517d | 535 | while (!do_nop && i < argc) { |
be26a982 | 536 | struct file *f; |
a7086591 | 537 | |
be26a982 JA |
538 | if (s->nr_files == MAX_FDS) { |
539 | printf("Max number of files (%d) reached\n", MAX_FDS); | |
540 | break; | |
541 | } | |
a7086591 JA |
542 | fd = open(argv[i], flags); |
543 | if (fd < 0) { | |
544 | perror("open"); | |
545 | return 1; | |
546 | } | |
be26a982 JA |
547 | |
548 | f = &s->files[s->nr_files]; | |
48e698fa | 549 | f->real_fd = fd; |
a7086591 JA |
550 | if (get_file_size(f)) { |
551 | printf("failed getting size of device/file\n"); | |
552 | return 1; | |
553 | } | |
554 | if (f->max_blocks <= 1) { | |
555 | printf("Zero file/device size?\n"); | |
556 | return 1; | |
557 | } | |
558 | f->max_blocks--; | |
559 | ||
560 | printf("Added file %s\n", argv[i]); | |
561 | s->nr_files++; | |
562 | i++; | |
563 | } | |
564 | ||
b3ce355d JA |
565 | if (fixedbufs) { |
566 | struct rlimit rlim; | |
567 | ||
568 | rlim.rlim_cur = RLIM_INFINITY; | |
569 | rlim.rlim_max = RLIM_INFINITY; | |
570 | if (setrlimit(RLIMIT_MEMLOCK, &rlim) < 0) { | |
571 | perror("setrlimit"); | |
572 | return 1; | |
573 | } | |
c9fb4c5b JA |
574 | } |
575 | ||
576 | arm_sig_int(); | |
577 | ||
e39863e3 | 578 | for (i = 0; i < depth; i++) { |
c3e2fc25 | 579 | void *buf; |
c9fb4c5b | 580 | |
c3e2fc25 | 581 | if (posix_memalign(&buf, BS, BS)) { |
c9fb4c5b JA |
582 | printf("failed alloc\n"); |
583 | return 1; | |
584 | } | |
c3e2fc25 JA |
585 | s->iovecs[i].iov_base = buf; |
586 | s->iovecs[i].iov_len = BS; | |
c9fb4c5b JA |
587 | } |
588 | ||
c3e2fc25 | 589 | err = setup_ring(s); |
c9fb4c5b | 590 | if (err) { |
c3e2fc25 | 591 | printf("ring setup failed: %s, %d\n", strerror(errno), err); |
c9fb4c5b JA |
592 | return 1; |
593 | } | |
c3e2fc25 | 594 | printf("polled=%d, fixedbufs=%d, buffered=%d", polled, fixedbufs, buffered); |
e39863e3 | 595 | printf(" QD=%d, sq_ring=%d, cq_ring=%d\n", depth, *s->sq_ring.ring_entries, *s->cq_ring.ring_entries); |
c9fb4c5b JA |
596 | |
597 | pthread_create(&s->thread, NULL, submitter_fn, s); | |
598 | ||
2e7888ef | 599 | fdepths = malloc(8 * s->nr_files); |
05138221 | 600 | reap = calls = done = 0; |
c9fb4c5b JA |
601 | do { |
602 | unsigned long this_done = 0; | |
603 | unsigned long this_reap = 0; | |
604 | unsigned long this_call = 0; | |
605 | unsigned long rpc = 0, ipc = 0; | |
606 | ||
607 | sleep(1); | |
608 | this_done += s->done; | |
609 | this_call += s->calls; | |
610 | this_reap += s->reaps; | |
611 | if (this_call - calls) { | |
612 | rpc = (this_done - done) / (this_call - calls); | |
613 | ipc = (this_reap - reap) / (this_call - calls); | |
191561c1 JA |
614 | } else |
615 | rpc = ipc = -1; | |
2e7888ef | 616 | file_depths(fdepths); |
05138221 | 617 | printf("IOPS=%lu, IOS/call=%ld/%ld, inflight=%u (%s)\n", |
c9fb4c5b | 618 | this_done - done, rpc, ipc, s->inflight, |
05138221 | 619 | fdepths); |
c9fb4c5b JA |
620 | done = this_done; |
621 | calls = this_call; | |
622 | reap = this_reap; | |
623 | } while (!finish); | |
624 | ||
625 | pthread_join(s->thread, &ret); | |
e31b8288 | 626 | close(s->ring_fd); |
2e7888ef | 627 | free(fdepths); |
c9fb4c5b JA |
628 | return 0; |
629 | } |