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1 | /*- |
2 | * BSD LICENSE | |
3 | * | |
4 | * Copyright (c) Intel Corporation. | |
5 | * All rights reserved. | |
6 | * | |
7 | * Redistribution and use in source and binary forms, with or without | |
8 | * modification, are permitted provided that the following conditions | |
9 | * are met: | |
10 | * | |
11 | * * Redistributions of source code must retain the above copyright | |
12 | * notice, this list of conditions and the following disclaimer. | |
13 | * * Redistributions in binary form must reproduce the above copyright | |
14 | * notice, this list of conditions and the following disclaimer in | |
15 | * the documentation and/or other materials provided with the | |
16 | * distribution. | |
17 | * * Neither the name of Intel Corporation nor the names of its | |
18 | * contributors may be used to endorse or promote products derived | |
19 | * from this software without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
22 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
23 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
24 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
25 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
26 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
27 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
28 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
29 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
30 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
31 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
32 | */ | |
33 | ||
34 | #include <errno.h> | |
35 | #include <inttypes.h> | |
36 | #include <stdbool.h> | |
37 | #include <stdio.h> | |
38 | #include <stdlib.h> | |
39 | #include <string.h> | |
40 | #include <unistd.h> | |
41 | ||
42 | #include <rte_config.h> | |
43 | #include <rte_lcore.h> | |
44 | ||
45 | #include "spdk/barrier.h" | |
46 | #include "spdk/fd.h" | |
47 | #include "spdk/nvme.h" | |
48 | #include "spdk/env.h" | |
49 | #include "spdk/string.h" | |
50 | #include "spdk/nvme_intel.h" | |
51 | ||
52 | #if HAVE_LIBAIO | |
53 | #include <libaio.h> | |
54 | #include <sys/stat.h> | |
55 | #include <fcntl.h> | |
56 | #endif | |
57 | ||
58 | struct ctrlr_entry { | |
59 | struct spdk_nvme_ctrlr *ctrlr; | |
60 | struct ctrlr_entry *next; | |
61 | char name[1024]; | |
62 | }; | |
63 | ||
64 | enum entry_type { | |
65 | ENTRY_TYPE_NVME_NS, | |
66 | ENTRY_TYPE_AIO_FILE, | |
67 | }; | |
68 | ||
69 | struct ns_entry { | |
70 | enum entry_type type; | |
71 | ||
72 | union { | |
73 | struct { | |
74 | struct spdk_nvme_ctrlr *ctrlr; | |
75 | struct spdk_nvme_ns *ns; | |
76 | struct spdk_nvme_qpair *qpair; | |
77 | } nvme; | |
78 | #if HAVE_LIBAIO | |
79 | struct { | |
80 | int fd; | |
81 | struct io_event *events; | |
82 | io_context_t ctx; | |
83 | } aio; | |
84 | #endif | |
85 | } u; | |
86 | ||
87 | uint32_t io_size_blocks; | |
88 | uint64_t size_in_ios; | |
89 | bool is_draining; | |
90 | uint32_t current_queue_depth; | |
91 | char name[1024]; | |
92 | }; | |
93 | ||
94 | struct perf_task { | |
95 | void *buf; | |
96 | uint64_t submit_tsc; | |
97 | #if HAVE_LIBAIO | |
98 | struct iocb iocb; | |
99 | #endif | |
100 | }; | |
101 | ||
102 | static struct ctrlr_entry *g_ctrlr = NULL; | |
103 | static struct ns_entry *g_ns = NULL; | |
104 | ||
105 | static uint64_t g_tsc_rate; | |
106 | ||
107 | static uint32_t g_io_size_bytes; | |
108 | static int g_time_in_sec; | |
109 | ||
110 | static int g_aio_optind; /* Index of first AIO filename in argv */ | |
111 | ||
112 | struct perf_task *g_task; | |
113 | uint64_t g_tsc_submit = 0; | |
114 | uint64_t g_tsc_submit_min = UINT64_MAX; | |
115 | uint64_t g_tsc_submit_max = 0; | |
116 | uint64_t g_tsc_complete = 0; | |
117 | uint64_t g_tsc_complete_min = UINT64_MAX; | |
118 | uint64_t g_tsc_complete_max = 0; | |
119 | uint64_t g_io_completed = 0; | |
120 | ||
121 | static void | |
122 | register_ns(struct spdk_nvme_ctrlr *ctrlr, struct spdk_nvme_ns *ns) | |
123 | { | |
124 | struct ns_entry *entry; | |
125 | const struct spdk_nvme_ctrlr_data *cdata; | |
126 | ||
127 | cdata = spdk_nvme_ctrlr_get_data(ctrlr); | |
128 | ||
129 | if (!spdk_nvme_ns_is_active(ns)) { | |
130 | printf("Controller %-20.20s (%-20.20s): Skipping inactive NS %u\n", | |
131 | cdata->mn, cdata->sn, | |
132 | spdk_nvme_ns_get_id(ns)); | |
133 | return; | |
134 | } | |
135 | ||
136 | if (spdk_nvme_ns_get_size(ns) < g_io_size_bytes || | |
137 | spdk_nvme_ns_get_sector_size(ns) > g_io_size_bytes) { | |
138 | printf("WARNING: controller %-20.20s (%-20.20s) ns %u has invalid " | |
139 | "ns size %" PRIu64 " / block size %u for I/O size %u\n", | |
140 | cdata->mn, cdata->sn, spdk_nvme_ns_get_id(ns), | |
141 | spdk_nvme_ns_get_size(ns), spdk_nvme_ns_get_sector_size(ns), g_io_size_bytes); | |
142 | return; | |
143 | } | |
144 | ||
145 | entry = calloc(1, sizeof(struct ns_entry)); | |
146 | if (entry == NULL) { | |
147 | perror("ns_entry malloc"); | |
148 | exit(1); | |
149 | } | |
150 | ||
151 | entry->type = ENTRY_TYPE_NVME_NS; | |
152 | entry->u.nvme.ctrlr = ctrlr; | |
153 | entry->u.nvme.ns = ns; | |
154 | ||
155 | entry->size_in_ios = spdk_nvme_ns_get_size(ns) / | |
156 | g_io_size_bytes; | |
157 | entry->io_size_blocks = g_io_size_bytes / spdk_nvme_ns_get_sector_size(ns); | |
158 | ||
159 | snprintf(entry->name, 44, "%-20.20s (%-20.20s)", cdata->mn, cdata->sn); | |
160 | ||
161 | g_ns = entry; | |
162 | } | |
163 | ||
164 | static void | |
165 | register_ctrlr(struct spdk_nvme_ctrlr *ctrlr) | |
166 | { | |
167 | int num_ns; | |
168 | struct ctrlr_entry *entry = malloc(sizeof(struct ctrlr_entry)); | |
169 | const struct spdk_nvme_ctrlr_data *cdata = spdk_nvme_ctrlr_get_data(ctrlr); | |
170 | ||
171 | if (entry == NULL) { | |
172 | perror("ctrlr_entry malloc"); | |
173 | exit(1); | |
174 | } | |
175 | ||
176 | snprintf(entry->name, sizeof(entry->name), "%-20.20s (%-20.20s)", cdata->mn, cdata->sn); | |
177 | ||
178 | entry->ctrlr = ctrlr; | |
179 | g_ctrlr = entry; | |
180 | ||
181 | num_ns = spdk_nvme_ctrlr_get_num_ns(ctrlr); | |
182 | /* Only register the first namespace. */ | |
183 | if (num_ns < 1) { | |
184 | fprintf(stderr, "controller found with no namespaces\n"); | |
185 | exit(1); | |
186 | } | |
187 | ||
188 | register_ns(ctrlr, spdk_nvme_ctrlr_get_ns(ctrlr, 1)); | |
189 | } | |
190 | ||
191 | #if HAVE_LIBAIO | |
192 | static int | |
193 | register_aio_file(const char *path) | |
194 | { | |
195 | struct ns_entry *entry; | |
196 | ||
197 | int fd; | |
198 | uint64_t size; | |
199 | uint32_t blklen; | |
200 | ||
201 | fd = open(path, O_RDWR | O_DIRECT); | |
202 | if (fd < 0) { | |
203 | fprintf(stderr, "Could not open AIO device %s: %s\n", path, strerror(errno)); | |
204 | return -1; | |
205 | } | |
206 | ||
207 | size = spdk_fd_get_size(fd); | |
208 | if (size == 0) { | |
209 | fprintf(stderr, "Could not determine size of AIO device %s\n", path); | |
210 | close(fd); | |
211 | return -1; | |
212 | } | |
213 | ||
214 | blklen = spdk_fd_get_blocklen(fd); | |
215 | if (blklen == 0) { | |
216 | fprintf(stderr, "Could not determine block size of AIO device %s\n", path); | |
217 | close(fd); | |
218 | return -1; | |
219 | } | |
220 | ||
221 | entry = calloc(1, sizeof(struct ns_entry)); | |
222 | if (entry == NULL) { | |
223 | close(fd); | |
224 | perror("aio ns_entry malloc"); | |
225 | return -1; | |
226 | } | |
227 | ||
228 | entry->type = ENTRY_TYPE_AIO_FILE; | |
229 | entry->u.aio.fd = fd; | |
230 | entry->size_in_ios = size / g_io_size_bytes; | |
231 | entry->io_size_blocks = g_io_size_bytes / blklen; | |
232 | ||
233 | snprintf(entry->name, sizeof(entry->name), "%s", path); | |
234 | ||
235 | g_ns = entry; | |
236 | ||
237 | return 0; | |
238 | } | |
239 | ||
240 | static int | |
241 | aio_submit(io_context_t aio_ctx, struct iocb *iocb, int fd, enum io_iocb_cmd cmd, void *buf, | |
242 | unsigned long nbytes, uint64_t offset, void *cb_ctx) | |
243 | { | |
244 | iocb->aio_fildes = fd; | |
245 | iocb->aio_reqprio = 0; | |
246 | iocb->aio_lio_opcode = cmd; | |
247 | iocb->u.c.buf = buf; | |
248 | iocb->u.c.nbytes = nbytes; | |
249 | iocb->u.c.offset = offset; | |
250 | iocb->data = cb_ctx; | |
251 | ||
252 | if (io_submit(aio_ctx, 1, &iocb) < 0) { | |
253 | printf("io_submit"); | |
254 | return -1; | |
255 | } | |
256 | ||
257 | return 0; | |
258 | } | |
259 | ||
260 | static void | |
261 | aio_check_io(void) | |
262 | { | |
263 | int count, i; | |
264 | struct timespec timeout; | |
265 | ||
266 | timeout.tv_sec = 0; | |
267 | timeout.tv_nsec = 0; | |
268 | ||
269 | count = io_getevents(g_ns->u.aio.ctx, 1, 1, g_ns->u.aio.events, &timeout); | |
270 | if (count < 0) { | |
271 | fprintf(stderr, "io_getevents error\n"); | |
272 | exit(1); | |
273 | } | |
274 | ||
275 | for (i = 0; i < count; i++) { | |
276 | g_ns->current_queue_depth--; | |
277 | } | |
278 | } | |
279 | #endif /* HAVE_LIBAIO */ | |
280 | ||
281 | static void io_complete(void *ctx, const struct spdk_nvme_cpl *completion); | |
282 | ||
283 | static __thread unsigned int seed = 0; | |
284 | ||
285 | static void | |
286 | submit_single_io(void) | |
287 | { | |
288 | uint64_t offset_in_ios; | |
289 | uint64_t start; | |
290 | int rc; | |
291 | struct ns_entry *entry = g_ns; | |
292 | uint64_t tsc_submit; | |
293 | ||
294 | offset_in_ios = rand_r(&seed) % entry->size_in_ios; | |
295 | ||
296 | start = spdk_get_ticks(); | |
297 | spdk_mb(); | |
298 | #if HAVE_LIBAIO | |
299 | if (entry->type == ENTRY_TYPE_AIO_FILE) { | |
300 | rc = aio_submit(g_ns->u.aio.ctx, &g_task->iocb, entry->u.aio.fd, IO_CMD_PREAD, g_task->buf, | |
301 | g_io_size_bytes, offset_in_ios * g_io_size_bytes, g_task); | |
302 | } else | |
303 | #endif | |
304 | { | |
305 | rc = spdk_nvme_ns_cmd_read(entry->u.nvme.ns, g_ns->u.nvme.qpair, g_task->buf, | |
306 | offset_in_ios * entry->io_size_blocks, | |
307 | entry->io_size_blocks, io_complete, g_task, 0); | |
308 | } | |
309 | ||
310 | spdk_mb(); | |
311 | tsc_submit = spdk_get_ticks() - start; | |
312 | g_tsc_submit += tsc_submit; | |
313 | if (tsc_submit < g_tsc_submit_min) { | |
314 | g_tsc_submit_min = tsc_submit; | |
315 | } | |
316 | if (tsc_submit > g_tsc_submit_max) { | |
317 | g_tsc_submit_max = tsc_submit; | |
318 | } | |
319 | ||
320 | if (rc != 0) { | |
321 | fprintf(stderr, "starting I/O failed\n"); | |
322 | } | |
323 | ||
324 | g_ns->current_queue_depth++; | |
325 | } | |
326 | ||
327 | static void | |
328 | io_complete(void *ctx, const struct spdk_nvme_cpl *completion) | |
329 | { | |
330 | g_ns->current_queue_depth--; | |
331 | } | |
332 | ||
333 | uint64_t g_complete_tsc_start; | |
334 | ||
335 | static void | |
336 | check_io(void) | |
337 | { | |
338 | uint64_t end, tsc_complete; | |
339 | spdk_mb(); | |
340 | #if HAVE_LIBAIO | |
341 | if (g_ns->type == ENTRY_TYPE_AIO_FILE) { | |
342 | aio_check_io(); | |
343 | } else | |
344 | #endif | |
345 | { | |
346 | spdk_nvme_qpair_process_completions(g_ns->u.nvme.qpair, 0); | |
347 | } | |
348 | spdk_mb(); | |
349 | end = spdk_get_ticks(); | |
350 | if (g_ns->current_queue_depth == 1) { | |
351 | /* | |
352 | * Account for race condition in AIO case where interrupt occurs | |
353 | * after checking for queue depth. If the timestamp capture | |
354 | * is too big compared to the last capture, assume that an | |
355 | * interrupt fired, and do not bump the start tsc forward. This | |
356 | * will ensure this extra time is accounted for next time through | |
357 | * when we see current_queue_depth drop to 0. | |
358 | */ | |
359 | if (g_ns->type == ENTRY_TYPE_NVME_NS || (end - g_complete_tsc_start) < 500) { | |
360 | g_complete_tsc_start = end; | |
361 | } | |
362 | } else { | |
363 | tsc_complete = end - g_complete_tsc_start; | |
364 | g_tsc_complete += tsc_complete; | |
365 | if (tsc_complete < g_tsc_complete_min) { | |
366 | g_tsc_complete_min = tsc_complete; | |
367 | } | |
368 | if (tsc_complete > g_tsc_complete_max) { | |
369 | g_tsc_complete_max = tsc_complete; | |
370 | } | |
371 | g_io_completed++; | |
372 | if (!g_ns->is_draining) { | |
373 | submit_single_io(); | |
374 | } | |
375 | g_complete_tsc_start = spdk_get_ticks(); | |
376 | } | |
377 | } | |
378 | ||
379 | static void | |
380 | drain_io(void) | |
381 | { | |
382 | g_ns->is_draining = true; | |
383 | while (g_ns->current_queue_depth > 0) { | |
384 | check_io(); | |
385 | } | |
386 | } | |
387 | ||
388 | static int | |
389 | init_ns_worker_ctx(void) | |
390 | { | |
391 | if (g_ns->type == ENTRY_TYPE_AIO_FILE) { | |
392 | #ifdef HAVE_LIBAIO | |
393 | g_ns->u.aio.events = calloc(1, sizeof(struct io_event)); | |
394 | if (!g_ns->u.aio.events) { | |
395 | return -1; | |
396 | } | |
397 | g_ns->u.aio.ctx = 0; | |
398 | if (io_setup(1, &g_ns->u.aio.ctx) < 0) { | |
399 | free(g_ns->u.aio.events); | |
400 | perror("io_setup"); | |
401 | return -1; | |
402 | } | |
403 | #endif | |
404 | } else { | |
405 | /* | |
406 | * TODO: If a controller has multiple namespaces, they could all use the same queue. | |
407 | * For now, give each namespace/thread combination its own queue. | |
408 | */ | |
409 | g_ns->u.nvme.qpair = spdk_nvme_ctrlr_alloc_io_qpair(g_ns->u.nvme.ctrlr, 0); | |
410 | if (!g_ns->u.nvme.qpair) { | |
411 | printf("ERROR: spdk_nvme_ctrlr_alloc_io_qpair failed\n"); | |
412 | return -1; | |
413 | } | |
414 | } | |
415 | ||
416 | return 0; | |
417 | } | |
418 | ||
419 | static void | |
420 | cleanup_ns_worker_ctx(void) | |
421 | { | |
422 | if (g_ns->type == ENTRY_TYPE_AIO_FILE) { | |
423 | #ifdef HAVE_LIBAIO | |
424 | io_destroy(g_ns->u.aio.ctx); | |
425 | free(g_ns->u.aio.events); | |
426 | #endif | |
427 | } else { | |
428 | spdk_nvme_ctrlr_free_io_qpair(g_ns->u.nvme.qpair); | |
429 | } | |
430 | } | |
431 | ||
432 | static int | |
433 | work_fn(void) | |
434 | { | |
435 | uint64_t tsc_end; | |
436 | ||
437 | printf("Starting work_fn\n"); | |
438 | ||
439 | /* Allocate a queue pair for each namespace. */ | |
440 | if (init_ns_worker_ctx() != 0) { | |
441 | printf("ERROR: init_ns_worker_ctx() failed\n"); | |
442 | return 1; | |
443 | } | |
444 | ||
445 | tsc_end = spdk_get_ticks() + g_time_in_sec * g_tsc_rate; | |
446 | ||
447 | /* Submit initial I/O for each namespace. */ | |
448 | submit_single_io(); | |
449 | g_complete_tsc_start = spdk_get_ticks(); | |
450 | ||
451 | while (1) { | |
452 | /* | |
453 | * Check for completed I/O for each controller. A new | |
454 | * I/O will be submitted in the io_complete callback | |
455 | * to replace each I/O that is completed. | |
456 | */ | |
457 | check_io(); | |
458 | ||
459 | if (spdk_get_ticks() > tsc_end) { | |
460 | break; | |
461 | } | |
462 | } | |
463 | ||
464 | drain_io(); | |
465 | cleanup_ns_worker_ctx(); | |
466 | ||
467 | return 0; | |
468 | } | |
469 | ||
470 | static void usage(char *program_name) | |
471 | { | |
472 | printf("%s options", program_name); | |
473 | #if HAVE_LIBAIO | |
474 | printf(" [AIO device(s)]..."); | |
475 | #endif | |
476 | printf("\n"); | |
477 | printf("\t[-s io size in bytes]\n"); | |
478 | printf("\t[-t time in seconds]\n"); | |
479 | printf("\t\t(default: 1)]\n"); | |
480 | } | |
481 | ||
482 | static void | |
483 | print_stats(void) | |
484 | { | |
485 | printf("g_tsc_submit = %ju\n", g_tsc_submit); | |
486 | printf("g_tsc_complete = %ju\n", g_tsc_complete); | |
487 | printf("g_io_completed = %ju\n", g_io_completed); | |
488 | ||
489 | printf("submit avg, min, max = %8.1f, %ju, %ju\n", | |
490 | (float)g_tsc_submit / g_io_completed, g_tsc_submit_min, g_tsc_submit_max); | |
491 | printf("complete avg, min, max = %8.1f, %ju, %ju\n", | |
492 | (float)g_tsc_complete / g_io_completed, g_tsc_complete_min, g_tsc_complete_max); | |
493 | } | |
494 | ||
495 | static int | |
496 | parse_args(int argc, char **argv) | |
497 | { | |
498 | int op; | |
499 | ||
500 | /* default value*/ | |
501 | g_io_size_bytes = 0; | |
502 | g_time_in_sec = 0; | |
503 | ||
504 | while ((op = getopt(argc, argv, "s:t:")) != -1) { | |
505 | switch (op) { | |
506 | case 's': | |
507 | g_io_size_bytes = atoi(optarg); | |
508 | break; | |
509 | case 't': | |
510 | g_time_in_sec = atoi(optarg); | |
511 | break; | |
512 | default: | |
513 | usage(argv[0]); | |
514 | return 1; | |
515 | } | |
516 | } | |
517 | ||
518 | if (!g_io_size_bytes) { | |
519 | usage(argv[0]); | |
520 | return 1; | |
521 | } | |
522 | if (!g_time_in_sec) { | |
523 | usage(argv[0]); | |
524 | return 1; | |
525 | } | |
526 | ||
527 | g_aio_optind = optind; | |
528 | optind = 1; | |
529 | return 0; | |
530 | } | |
531 | ||
532 | static bool | |
533 | probe_cb(void *cb_ctx, const struct spdk_nvme_transport_id *trid, | |
534 | struct spdk_nvme_ctrlr_opts *opts) | |
535 | { | |
536 | static uint32_t ctrlr_found = 0; | |
537 | ||
538 | if (ctrlr_found == 1) { | |
539 | fprintf(stderr, "only attching to one controller, so skipping\n"); | |
540 | fprintf(stderr, " controller at PCI address %s\n", | |
541 | trid->traddr); | |
542 | return false; | |
543 | } | |
544 | ctrlr_found = 1; | |
545 | ||
546 | printf("Attaching to %s\n", trid->traddr); | |
547 | ||
548 | return true; | |
549 | } | |
550 | ||
551 | static void | |
552 | attach_cb(void *cb_ctx, const struct spdk_nvme_transport_id *trid, | |
553 | struct spdk_nvme_ctrlr *ctrlr, const struct spdk_nvme_ctrlr_opts *opts) | |
554 | { | |
555 | printf("Attached to %s\n", trid->traddr); | |
556 | ||
557 | register_ctrlr(ctrlr); | |
558 | } | |
559 | ||
560 | static int | |
561 | register_controllers(void) | |
562 | { | |
563 | printf("Initializing NVMe Controllers\n"); | |
564 | ||
565 | if (spdk_nvme_probe(NULL, NULL, probe_cb, attach_cb, NULL) != 0) { | |
566 | fprintf(stderr, "spdk_nvme_probe() failed\n"); | |
567 | return 1; | |
568 | } | |
569 | ||
570 | return 0; | |
571 | } | |
572 | ||
573 | int main(int argc, char **argv) | |
574 | { | |
575 | int rc; | |
576 | struct spdk_env_opts opts; | |
577 | ||
578 | spdk_env_opts_init(&opts); | |
579 | opts.name = "overhead"; | |
580 | opts.core_mask = "0x1"; | |
581 | spdk_env_init(&opts); | |
582 | ||
583 | rc = parse_args(argc, argv); | |
584 | if (rc != 0) { | |
585 | return rc; | |
586 | } | |
587 | ||
588 | g_task = spdk_zmalloc(sizeof(struct perf_task), 0, NULL); | |
589 | if (g_task == NULL) { | |
590 | fprintf(stderr, "g_task alloc failed\n"); | |
591 | exit(1); | |
592 | } | |
593 | ||
594 | g_task->buf = spdk_zmalloc(g_io_size_bytes, 0x1000, NULL); | |
595 | if (g_task->buf == NULL) { | |
596 | fprintf(stderr, "g_task->buf spdk_zmalloc failed\n"); | |
597 | exit(1); | |
598 | } | |
599 | ||
600 | g_tsc_rate = spdk_get_ticks_hz(); | |
601 | ||
602 | #if HAVE_LIBAIO | |
603 | if (g_aio_optind < argc) { | |
604 | printf("Measuring overhead for AIO device %s.\n", argv[g_aio_optind]); | |
605 | if (register_aio_file(argv[g_aio_optind]) != 0) { | |
606 | rc = -1; | |
607 | goto cleanup; | |
608 | } | |
609 | } else | |
610 | #endif | |
611 | { | |
612 | if (register_controllers() != 0) { | |
613 | rc = -1; | |
614 | goto cleanup; | |
615 | } | |
616 | } | |
617 | ||
618 | printf("Initialization complete. Launching workers.\n"); | |
619 | ||
620 | rc = work_fn(); | |
621 | ||
622 | print_stats(); | |
623 | ||
624 | cleanup: | |
625 | free(g_ns); | |
626 | if (g_ctrlr) { | |
627 | spdk_nvme_detach(g_ctrlr->ctrlr); | |
628 | free(g_ctrlr); | |
629 | } | |
630 | ||
631 | if (rc != 0) { | |
632 | fprintf(stderr, "%s: errors occured\n", argv[0]); | |
633 | } | |
634 | ||
635 | return rc; | |
636 | } |