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8e7c2a02 AN |
1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* Copyright (c) 2020 Facebook */ | |
3 | #define _GNU_SOURCE | |
4 | #include <argp.h> | |
5 | #include <linux/compiler.h> | |
6 | #include <sys/time.h> | |
7 | #include <sched.h> | |
8 | #include <fcntl.h> | |
9 | #include <pthread.h> | |
10 | #include <sys/sysinfo.h> | |
8e7c2a02 AN |
11 | #include <signal.h> |
12 | #include "bench.h" | |
13 | #include "testing_helpers.h" | |
14 | ||
15 | struct env env = { | |
16 | .warmup_sec = 1, | |
17 | .duration_sec = 5, | |
18 | .affinity = false, | |
90c22503 | 19 | .quiet = false, |
970308a7 | 20 | .consumer_cnt = 0, |
8e7c2a02 AN |
21 | .producer_cnt = 1, |
22 | }; | |
23 | ||
24 | static int libbpf_print_fn(enum libbpf_print_level level, | |
25 | const char *format, va_list args) | |
26 | { | |
27 | if (level == LIBBPF_DEBUG && !env.verbose) | |
28 | return 0; | |
29 | return vfprintf(stderr, format, args); | |
30 | } | |
31 | ||
9a93bf3f | 32 | void setup_libbpf(void) |
8e7c2a02 | 33 | { |
bad2e478 | 34 | libbpf_set_strict_mode(LIBBPF_STRICT_ALL); |
8e7c2a02 | 35 | libbpf_set_print(libbpf_print_fn); |
8e7c2a02 AN |
36 | } |
37 | ||
57fd1c63 JK |
38 | void false_hits_report_progress(int iter, struct bench_res *res, long delta_ns) |
39 | { | |
40 | long total = res->false_hits + res->hits + res->drops; | |
41 | ||
42 | printf("Iter %3d (%7.3lfus): ", | |
43 | iter, (delta_ns - 1000000000) / 1000.0); | |
44 | ||
45 | printf("%ld false hits of %ld total operations. Percentage = %2.2f %%\n", | |
46 | res->false_hits, total, ((float)res->false_hits / total) * 100); | |
47 | } | |
48 | ||
49 | void false_hits_report_final(struct bench_res res[], int res_cnt) | |
50 | { | |
51 | long total_hits = 0, total_drops = 0, total_false_hits = 0, total_ops = 0; | |
52 | int i; | |
53 | ||
54 | for (i = 0; i < res_cnt; i++) { | |
55 | total_hits += res[i].hits; | |
56 | total_false_hits += res[i].false_hits; | |
57 | total_drops += res[i].drops; | |
58 | } | |
59 | total_ops = total_hits + total_false_hits + total_drops; | |
60 | ||
61 | printf("Summary: %ld false hits of %ld total operations. ", | |
62 | total_false_hits, total_ops); | |
63 | printf("Percentage = %2.2f %%\n", | |
64 | ((float)total_false_hits / total_ops) * 100); | |
65 | } | |
66 | ||
8e7c2a02 AN |
67 | void hits_drops_report_progress(int iter, struct bench_res *res, long delta_ns) |
68 | { | |
69 | double hits_per_sec, drops_per_sec; | |
70 | double hits_per_prod; | |
71 | ||
72 | hits_per_sec = res->hits / 1000000.0 / (delta_ns / 1000000000.0); | |
73 | hits_per_prod = hits_per_sec / env.producer_cnt; | |
74 | drops_per_sec = res->drops / 1000000.0 / (delta_ns / 1000000000.0); | |
75 | ||
76 | printf("Iter %3d (%7.3lfus): ", | |
77 | iter, (delta_ns - 1000000000) / 1000.0); | |
78 | ||
f44bc543 JK |
79 | printf("hits %8.3lfM/s (%7.3lfM/prod), drops %8.3lfM/s, total operations %8.3lfM/s\n", |
80 | hits_per_sec, hits_per_prod, drops_per_sec, hits_per_sec + drops_per_sec); | |
8e7c2a02 AN |
81 | } |
82 | ||
2b4b2621 DM |
83 | void |
84 | grace_period_latency_basic_stats(struct bench_res res[], int res_cnt, struct basic_stats *gp_stat) | |
85 | { | |
86 | int i; | |
87 | ||
88 | memset(gp_stat, 0, sizeof(struct basic_stats)); | |
89 | ||
90 | for (i = 0; i < res_cnt; i++) | |
91 | gp_stat->mean += res[i].gp_ns / 1000.0 / (double)res[i].gp_ct / (0.0 + res_cnt); | |
92 | ||
93 | #define IT_MEAN_DIFF (res[i].gp_ns / 1000.0 / (double)res[i].gp_ct - gp_stat->mean) | |
94 | if (res_cnt > 1) { | |
95 | for (i = 0; i < res_cnt; i++) | |
96 | gp_stat->stddev += (IT_MEAN_DIFF * IT_MEAN_DIFF) / (res_cnt - 1.0); | |
97 | } | |
98 | gp_stat->stddev = sqrt(gp_stat->stddev); | |
99 | #undef IT_MEAN_DIFF | |
100 | } | |
101 | ||
102 | void | |
103 | grace_period_ticks_basic_stats(struct bench_res res[], int res_cnt, struct basic_stats *gp_stat) | |
104 | { | |
105 | int i; | |
106 | ||
107 | memset(gp_stat, 0, sizeof(struct basic_stats)); | |
108 | for (i = 0; i < res_cnt; i++) | |
109 | gp_stat->mean += res[i].stime / (double)res[i].gp_ct / (0.0 + res_cnt); | |
110 | ||
111 | #define IT_MEAN_DIFF (res[i].stime / (double)res[i].gp_ct - gp_stat->mean) | |
112 | if (res_cnt > 1) { | |
113 | for (i = 0; i < res_cnt; i++) | |
114 | gp_stat->stddev += (IT_MEAN_DIFF * IT_MEAN_DIFF) / (res_cnt - 1.0); | |
115 | } | |
116 | gp_stat->stddev = sqrt(gp_stat->stddev); | |
117 | #undef IT_MEAN_DIFF | |
118 | } | |
119 | ||
8e7c2a02 AN |
120 | void hits_drops_report_final(struct bench_res res[], int res_cnt) |
121 | { | |
122 | int i; | |
f44bc543 JK |
123 | double hits_mean = 0.0, drops_mean = 0.0, total_ops_mean = 0.0; |
124 | double hits_stddev = 0.0, drops_stddev = 0.0, total_ops_stddev = 0.0; | |
125 | double total_ops; | |
8e7c2a02 AN |
126 | |
127 | for (i = 0; i < res_cnt; i++) { | |
128 | hits_mean += res[i].hits / 1000000.0 / (0.0 + res_cnt); | |
129 | drops_mean += res[i].drops / 1000000.0 / (0.0 + res_cnt); | |
130 | } | |
f44bc543 | 131 | total_ops_mean = hits_mean + drops_mean; |
8e7c2a02 AN |
132 | |
133 | if (res_cnt > 1) { | |
134 | for (i = 0; i < res_cnt; i++) { | |
135 | hits_stddev += (hits_mean - res[i].hits / 1000000.0) * | |
136 | (hits_mean - res[i].hits / 1000000.0) / | |
137 | (res_cnt - 1.0); | |
138 | drops_stddev += (drops_mean - res[i].drops / 1000000.0) * | |
139 | (drops_mean - res[i].drops / 1000000.0) / | |
140 | (res_cnt - 1.0); | |
f44bc543 JK |
141 | total_ops = res[i].hits + res[i].drops; |
142 | total_ops_stddev += (total_ops_mean - total_ops / 1000000.0) * | |
143 | (total_ops_mean - total_ops / 1000000.0) / | |
144 | (res_cnt - 1.0); | |
8e7c2a02 AN |
145 | } |
146 | hits_stddev = sqrt(hits_stddev); | |
147 | drops_stddev = sqrt(drops_stddev); | |
f44bc543 | 148 | total_ops_stddev = sqrt(total_ops_stddev); |
8e7c2a02 AN |
149 | } |
150 | printf("Summary: hits %8.3lf \u00B1 %5.3lfM/s (%7.3lfM/prod), ", | |
151 | hits_mean, hits_stddev, hits_mean / env.producer_cnt); | |
f44bc543 | 152 | printf("drops %8.3lf \u00B1 %5.3lfM/s, ", |
8e7c2a02 | 153 | drops_mean, drops_stddev); |
f44bc543 JK |
154 | printf("total operations %8.3lf \u00B1 %5.3lfM/s\n", |
155 | total_ops_mean, total_ops_stddev); | |
8e7c2a02 AN |
156 | } |
157 | ||
ec151037 JK |
158 | void ops_report_progress(int iter, struct bench_res *res, long delta_ns) |
159 | { | |
160 | double hits_per_sec, hits_per_prod; | |
161 | ||
162 | hits_per_sec = res->hits / 1000000.0 / (delta_ns / 1000000000.0); | |
163 | hits_per_prod = hits_per_sec / env.producer_cnt; | |
164 | ||
165 | printf("Iter %3d (%7.3lfus): ", iter, (delta_ns - 1000000000) / 1000.0); | |
166 | ||
167 | printf("hits %8.3lfM/s (%7.3lfM/prod)\n", hits_per_sec, hits_per_prod); | |
168 | } | |
169 | ||
170 | void ops_report_final(struct bench_res res[], int res_cnt) | |
171 | { | |
172 | double hits_mean = 0.0, hits_stddev = 0.0; | |
173 | int i; | |
174 | ||
175 | for (i = 0; i < res_cnt; i++) | |
176 | hits_mean += res[i].hits / 1000000.0 / (0.0 + res_cnt); | |
177 | ||
178 | if (res_cnt > 1) { | |
179 | for (i = 0; i < res_cnt; i++) | |
180 | hits_stddev += (hits_mean - res[i].hits / 1000000.0) * | |
181 | (hits_mean - res[i].hits / 1000000.0) / | |
182 | (res_cnt - 1.0); | |
183 | ||
184 | hits_stddev = sqrt(hits_stddev); | |
185 | } | |
186 | printf("Summary: throughput %8.3lf \u00B1 %5.3lf M ops/s (%7.3lfM ops/prod), ", | |
187 | hits_mean, hits_stddev, hits_mean / env.producer_cnt); | |
188 | printf("latency %8.3lf ns/op\n", 1000.0 / hits_mean * env.producer_cnt); | |
189 | } | |
190 | ||
73087489 DM |
191 | void local_storage_report_progress(int iter, struct bench_res *res, |
192 | long delta_ns) | |
193 | { | |
194 | double important_hits_per_sec, hits_per_sec; | |
195 | double delta_sec = delta_ns / 1000000000.0; | |
196 | ||
197 | hits_per_sec = res->hits / 1000000.0 / delta_sec; | |
198 | important_hits_per_sec = res->important_hits / 1000000.0 / delta_sec; | |
199 | ||
200 | printf("Iter %3d (%7.3lfus): ", iter, (delta_ns - 1000000000) / 1000.0); | |
201 | ||
202 | printf("hits %8.3lfM/s ", hits_per_sec); | |
203 | printf("important_hits %8.3lfM/s\n", important_hits_per_sec); | |
204 | } | |
205 | ||
206 | void local_storage_report_final(struct bench_res res[], int res_cnt) | |
207 | { | |
208 | double important_hits_mean = 0.0, important_hits_stddev = 0.0; | |
209 | double hits_mean = 0.0, hits_stddev = 0.0; | |
210 | int i; | |
211 | ||
212 | for (i = 0; i < res_cnt; i++) { | |
213 | hits_mean += res[i].hits / 1000000.0 / (0.0 + res_cnt); | |
214 | important_hits_mean += res[i].important_hits / 1000000.0 / (0.0 + res_cnt); | |
215 | } | |
216 | ||
217 | if (res_cnt > 1) { | |
218 | for (i = 0; i < res_cnt; i++) { | |
219 | hits_stddev += (hits_mean - res[i].hits / 1000000.0) * | |
220 | (hits_mean - res[i].hits / 1000000.0) / | |
221 | (res_cnt - 1.0); | |
222 | important_hits_stddev += | |
223 | (important_hits_mean - res[i].important_hits / 1000000.0) * | |
224 | (important_hits_mean - res[i].important_hits / 1000000.0) / | |
225 | (res_cnt - 1.0); | |
226 | } | |
227 | ||
228 | hits_stddev = sqrt(hits_stddev); | |
229 | important_hits_stddev = sqrt(important_hits_stddev); | |
230 | } | |
231 | printf("Summary: hits throughput %8.3lf \u00B1 %5.3lf M ops/s, ", | |
232 | hits_mean, hits_stddev); | |
233 | printf("hits latency %8.3lf ns/op, ", 1000.0 / hits_mean); | |
234 | printf("important_hits throughput %8.3lf \u00B1 %5.3lf M ops/s\n", | |
235 | important_hits_mean, important_hits_stddev); | |
236 | } | |
237 | ||
8e7c2a02 AN |
238 | const char *argp_program_version = "benchmark"; |
239 | const char *argp_program_bug_address = "<bpf@vger.kernel.org>"; | |
240 | const char argp_program_doc[] = | |
241 | "benchmark Generic benchmarking framework.\n" | |
242 | "\n" | |
243 | "This tool runs benchmarks.\n" | |
244 | "\n" | |
245 | "USAGE: benchmark <bench-name>\n" | |
246 | "\n" | |
247 | "EXAMPLES:\n" | |
248 | " # run 'count-local' benchmark with 1 producer and 1 consumer\n" | |
249 | " benchmark count-local\n" | |
250 | " # run 'count-local' with 16 producer and 8 consumer thread, pinned to CPUs\n" | |
251 | " benchmark -p16 -c8 -a count-local\n"; | |
252 | ||
253 | enum { | |
254 | ARG_PROD_AFFINITY_SET = 1000, | |
255 | ARG_CONS_AFFINITY_SET = 1001, | |
256 | }; | |
257 | ||
258 | static const struct argp_option opts[] = { | |
259 | { "list", 'l', NULL, 0, "List available benchmarks"}, | |
260 | { "duration", 'd', "SEC", 0, "Duration of benchmark, seconds"}, | |
261 | { "warmup", 'w', "SEC", 0, "Warm-up period, seconds"}, | |
262 | { "producers", 'p', "NUM", 0, "Number of producer threads"}, | |
263 | { "consumers", 'c', "NUM", 0, "Number of consumer threads"}, | |
264 | { "verbose", 'v', NULL, 0, "Verbose debug output"}, | |
265 | { "affinity", 'a', NULL, 0, "Set consumer/producer thread affinity"}, | |
90c22503 | 266 | { "quiet", 'q', NULL, 0, "Be more quiet"}, |
8e7c2a02 AN |
267 | { "prod-affinity", ARG_PROD_AFFINITY_SET, "CPUSET", 0, |
268 | "Set of CPUs for producer threads; implies --affinity"}, | |
269 | { "cons-affinity", ARG_CONS_AFFINITY_SET, "CPUSET", 0, | |
270 | "Set of CPUs for consumer threads; implies --affinity"}, | |
271 | {}, | |
272 | }; | |
273 | ||
c97099b0 | 274 | extern struct argp bench_ringbufs_argp; |
57fd1c63 | 275 | extern struct argp bench_bloom_map_argp; |
ec151037 | 276 | extern struct argp bench_bpf_loop_argp; |
73087489 | 277 | extern struct argp bench_local_storage_argp; |
2b4b2621 | 278 | extern struct argp bench_local_storage_rcu_tasks_trace_argp; |
9c42652f | 279 | extern struct argp bench_strncmp_argp; |
f371f2dc | 280 | extern struct argp bench_hashmap_lookup_argp; |
cbe9d93d | 281 | extern struct argp bench_local_storage_create_argp; |
fd283ab1 | 282 | extern struct argp bench_htab_mem_argp; |
c97099b0 AN |
283 | |
284 | static const struct argp_child bench_parsers[] = { | |
285 | { &bench_ringbufs_argp, 0, "Ring buffers benchmark", 0 }, | |
57fd1c63 | 286 | { &bench_bloom_map_argp, 0, "Bloom filter map benchmark", 0 }, |
ec151037 | 287 | { &bench_bpf_loop_argp, 0, "bpf_loop helper benchmark", 0 }, |
73087489 | 288 | { &bench_local_storage_argp, 0, "local_storage benchmark", 0 }, |
9c42652f | 289 | { &bench_strncmp_argp, 0, "bpf_strncmp helper benchmark", 0 }, |
2b4b2621 DM |
290 | { &bench_local_storage_rcu_tasks_trace_argp, 0, |
291 | "local_storage RCU Tasks Trace slowdown benchmark", 0 }, | |
f371f2dc | 292 | { &bench_hashmap_lookup_argp, 0, "Hashmap lookup benchmark", 0 }, |
cbe9d93d | 293 | { &bench_local_storage_create_argp, 0, "local-storage-create benchmark", 0 }, |
fd283ab1 | 294 | { &bench_htab_mem_argp, 0, "hash map memory benchmark", 0 }, |
c97099b0 AN |
295 | {}, |
296 | }; | |
297 | ||
22ff7aea AP |
298 | /* Make pos_args global, so that we can run argp_parse twice, if necessary */ |
299 | static int pos_args; | |
300 | ||
8e7c2a02 AN |
301 | static error_t parse_arg(int key, char *arg, struct argp_state *state) |
302 | { | |
8e7c2a02 AN |
303 | switch (key) { |
304 | case 'v': | |
305 | env.verbose = true; | |
306 | break; | |
307 | case 'l': | |
308 | env.list = true; | |
309 | break; | |
310 | case 'd': | |
311 | env.duration_sec = strtol(arg, NULL, 10); | |
312 | if (env.duration_sec <= 0) { | |
313 | fprintf(stderr, "Invalid duration: %s\n", arg); | |
314 | argp_usage(state); | |
315 | } | |
316 | break; | |
317 | case 'w': | |
318 | env.warmup_sec = strtol(arg, NULL, 10); | |
319 | if (env.warmup_sec <= 0) { | |
320 | fprintf(stderr, "Invalid warm-up duration: %s\n", arg); | |
321 | argp_usage(state); | |
322 | } | |
323 | break; | |
324 | case 'p': | |
325 | env.producer_cnt = strtol(arg, NULL, 10); | |
943b043a | 326 | if (env.producer_cnt < 0) { |
8e7c2a02 AN |
327 | fprintf(stderr, "Invalid producer count: %s\n", arg); |
328 | argp_usage(state); | |
329 | } | |
330 | break; | |
331 | case 'c': | |
332 | env.consumer_cnt = strtol(arg, NULL, 10); | |
943b043a | 333 | if (env.consumer_cnt < 0) { |
8e7c2a02 AN |
334 | fprintf(stderr, "Invalid consumer count: %s\n", arg); |
335 | argp_usage(state); | |
336 | } | |
337 | break; | |
338 | case 'a': | |
339 | env.affinity = true; | |
340 | break; | |
90c22503 AP |
341 | case 'q': |
342 | env.quiet = true; | |
343 | break; | |
8e7c2a02 AN |
344 | case ARG_PROD_AFFINITY_SET: |
345 | env.affinity = true; | |
346 | if (parse_num_list(arg, &env.prod_cpus.cpus, | |
347 | &env.prod_cpus.cpus_len)) { | |
348 | fprintf(stderr, "Invalid format of CPU set for producers."); | |
349 | argp_usage(state); | |
350 | } | |
351 | break; | |
352 | case ARG_CONS_AFFINITY_SET: | |
353 | env.affinity = true; | |
354 | if (parse_num_list(arg, &env.cons_cpus.cpus, | |
355 | &env.cons_cpus.cpus_len)) { | |
356 | fprintf(stderr, "Invalid format of CPU set for consumers."); | |
357 | argp_usage(state); | |
358 | } | |
359 | break; | |
360 | case ARGP_KEY_ARG: | |
361 | if (pos_args++) { | |
362 | fprintf(stderr, | |
363 | "Unrecognized positional argument: %s\n", arg); | |
364 | argp_usage(state); | |
365 | } | |
366 | env.bench_name = strdup(arg); | |
367 | break; | |
368 | default: | |
369 | return ARGP_ERR_UNKNOWN; | |
370 | } | |
371 | return 0; | |
372 | } | |
373 | ||
22ff7aea | 374 | static void parse_cmdline_args_init(int argc, char **argv) |
8e7c2a02 AN |
375 | { |
376 | static const struct argp argp = { | |
377 | .options = opts, | |
378 | .parser = parse_arg, | |
379 | .doc = argp_program_doc, | |
c97099b0 | 380 | .children = bench_parsers, |
8e7c2a02 AN |
381 | }; |
382 | if (argp_parse(&argp, argc, argv, 0, NULL, NULL)) | |
383 | exit(1); | |
22ff7aea AP |
384 | } |
385 | ||
386 | static void parse_cmdline_args_final(int argc, char **argv) | |
387 | { | |
388 | struct argp_child bench_parsers[2] = {}; | |
389 | const struct argp argp = { | |
390 | .options = opts, | |
391 | .parser = parse_arg, | |
392 | .doc = argp_program_doc, | |
393 | .children = bench_parsers, | |
394 | }; | |
395 | ||
396 | /* Parse arguments the second time with the correct set of parsers */ | |
397 | if (bench->argp) { | |
398 | bench_parsers[0].argp = bench->argp; | |
399 | bench_parsers[0].header = bench->name; | |
400 | pos_args = 0; | |
401 | if (argp_parse(&argp, argc, argv, 0, NULL, NULL)) | |
402 | exit(1); | |
8e7c2a02 AN |
403 | } |
404 | } | |
405 | ||
406 | static void collect_measurements(long delta_ns); | |
407 | ||
408 | static __u64 last_time_ns; | |
409 | static void sigalarm_handler(int signo) | |
410 | { | |
411 | long new_time_ns = get_time_ns(); | |
412 | long delta_ns = new_time_ns - last_time_ns; | |
413 | ||
414 | collect_measurements(delta_ns); | |
415 | ||
416 | last_time_ns = new_time_ns; | |
417 | } | |
418 | ||
419 | /* set up periodic 1-second timer */ | |
420 | static void setup_timer() | |
421 | { | |
422 | static struct sigaction sigalarm_action = { | |
423 | .sa_handler = sigalarm_handler, | |
424 | }; | |
425 | struct itimerval timer_settings = {}; | |
426 | int err; | |
427 | ||
428 | last_time_ns = get_time_ns(); | |
429 | err = sigaction(SIGALRM, &sigalarm_action, NULL); | |
430 | if (err < 0) { | |
5b0004d9 | 431 | fprintf(stderr, "failed to install SIGALRM handler: %d\n", -errno); |
8e7c2a02 AN |
432 | exit(1); |
433 | } | |
434 | timer_settings.it_interval.tv_sec = 1; | |
435 | timer_settings.it_value.tv_sec = 1; | |
436 | err = setitimer(ITIMER_REAL, &timer_settings, NULL); | |
437 | if (err < 0) { | |
438 | fprintf(stderr, "failed to arm interval timer: %d\n", -errno); | |
439 | exit(1); | |
440 | } | |
441 | } | |
442 | ||
443 | static void set_thread_affinity(pthread_t thread, int cpu) | |
444 | { | |
445 | cpu_set_t cpuset; | |
ea400d13 | 446 | int err; |
8e7c2a02 AN |
447 | |
448 | CPU_ZERO(&cpuset); | |
449 | CPU_SET(cpu, &cpuset); | |
ea400d13 HT |
450 | err = pthread_setaffinity_np(thread, sizeof(cpuset), &cpuset); |
451 | if (err) { | |
8e7c2a02 | 452 | fprintf(stderr, "setting affinity to CPU #%d failed: %d\n", |
ea400d13 | 453 | cpu, -err); |
8e7c2a02 AN |
454 | exit(1); |
455 | } | |
456 | } | |
457 | ||
458 | static int next_cpu(struct cpu_set *cpu_set) | |
459 | { | |
460 | if (cpu_set->cpus) { | |
461 | int i; | |
462 | ||
463 | /* find next available CPU */ | |
464 | for (i = cpu_set->next_cpu; i < cpu_set->cpus_len; i++) { | |
465 | if (cpu_set->cpus[i]) { | |
466 | cpu_set->next_cpu = i + 1; | |
467 | return i; | |
468 | } | |
469 | } | |
470 | fprintf(stderr, "Not enough CPUs specified, need CPU #%d or higher.\n", i); | |
471 | exit(1); | |
472 | } | |
473 | ||
da77ae2b | 474 | return cpu_set->next_cpu++ % env.nr_cpus; |
8e7c2a02 AN |
475 | } |
476 | ||
477 | static struct bench_state { | |
478 | int res_cnt; | |
479 | struct bench_res *results; | |
480 | pthread_t *consumers; | |
481 | pthread_t *producers; | |
482 | } state; | |
483 | ||
484 | const struct bench *bench = NULL; | |
485 | ||
486 | extern const struct bench bench_count_global; | |
487 | extern const struct bench bench_count_local; | |
4eaf0b5c AN |
488 | extern const struct bench bench_rename_base; |
489 | extern const struct bench bench_rename_kprobe; | |
490 | extern const struct bench bench_rename_kretprobe; | |
491 | extern const struct bench bench_rename_rawtp; | |
492 | extern const struct bench bench_rename_fentry; | |
493 | extern const struct bench bench_rename_fexit; | |
c5d420c3 AN |
494 | extern const struct bench bench_trig_base; |
495 | extern const struct bench bench_trig_tp; | |
496 | extern const struct bench bench_trig_rawtp; | |
497 | extern const struct bench bench_trig_kprobe; | |
365c2b32 | 498 | extern const struct bench bench_trig_kretprobe; |
379b97bb JO |
499 | extern const struct bench bench_trig_kprobe_multi; |
500 | extern const struct bench bench_trig_kretprobe_multi; | |
c5d420c3 | 501 | extern const struct bench bench_trig_fentry; |
365c2b32 | 502 | extern const struct bench bench_trig_fexit; |
e68a1445 | 503 | extern const struct bench bench_trig_fentry_sleep; |
c5d420c3 | 504 | extern const struct bench bench_trig_fmodret; |
d41bc48b | 505 | extern const struct bench bench_trig_uprobe_base; |
8f79870e AN |
506 | extern const struct bench bench_trig_uprobe_nop; |
507 | extern const struct bench bench_trig_uretprobe_nop; | |
508 | extern const struct bench bench_trig_uprobe_push; | |
509 | extern const struct bench bench_trig_uretprobe_push; | |
510 | extern const struct bench bench_trig_uprobe_ret; | |
511 | extern const struct bench bench_trig_uretprobe_ret; | |
c97099b0 AN |
512 | extern const struct bench bench_rb_libbpf; |
513 | extern const struct bench bench_rb_custom; | |
514 | extern const struct bench bench_pb_libbpf; | |
515 | extern const struct bench bench_pb_custom; | |
57fd1c63 JK |
516 | extern const struct bench bench_bloom_lookup; |
517 | extern const struct bench bench_bloom_update; | |
518 | extern const struct bench bench_bloom_false_positive; | |
f44bc543 JK |
519 | extern const struct bench bench_hashmap_without_bloom; |
520 | extern const struct bench bench_hashmap_with_bloom; | |
ec151037 | 521 | extern const struct bench bench_bpf_loop; |
9c42652f HT |
522 | extern const struct bench bench_strncmp_no_helper; |
523 | extern const struct bench bench_strncmp_helper; | |
89eda984 | 524 | extern const struct bench bench_bpf_hashmap_full_update; |
73087489 DM |
525 | extern const struct bench bench_local_storage_cache_seq_get; |
526 | extern const struct bench bench_local_storage_cache_interleaved_get; | |
527 | extern const struct bench bench_local_storage_cache_hashmap_control; | |
2b4b2621 | 528 | extern const struct bench bench_local_storage_tasks_trace; |
f371f2dc | 529 | extern const struct bench bench_bpf_hashmap_lookup; |
4659fba1 | 530 | extern const struct bench bench_local_storage_create; |
fd283ab1 | 531 | extern const struct bench bench_htab_mem; |
8e7c2a02 AN |
532 | |
533 | static const struct bench *benchs[] = { | |
534 | &bench_count_global, | |
535 | &bench_count_local, | |
4eaf0b5c AN |
536 | &bench_rename_base, |
537 | &bench_rename_kprobe, | |
538 | &bench_rename_kretprobe, | |
539 | &bench_rename_rawtp, | |
540 | &bench_rename_fentry, | |
541 | &bench_rename_fexit, | |
c5d420c3 AN |
542 | &bench_trig_base, |
543 | &bench_trig_tp, | |
544 | &bench_trig_rawtp, | |
545 | &bench_trig_kprobe, | |
365c2b32 | 546 | &bench_trig_kretprobe, |
379b97bb JO |
547 | &bench_trig_kprobe_multi, |
548 | &bench_trig_kretprobe_multi, | |
c5d420c3 | 549 | &bench_trig_fentry, |
365c2b32 | 550 | &bench_trig_fexit, |
e68a1445 | 551 | &bench_trig_fentry_sleep, |
c5d420c3 | 552 | &bench_trig_fmodret, |
d41bc48b | 553 | &bench_trig_uprobe_base, |
8f79870e AN |
554 | &bench_trig_uprobe_nop, |
555 | &bench_trig_uretprobe_nop, | |
556 | &bench_trig_uprobe_push, | |
557 | &bench_trig_uretprobe_push, | |
558 | &bench_trig_uprobe_ret, | |
559 | &bench_trig_uretprobe_ret, | |
c97099b0 AN |
560 | &bench_rb_libbpf, |
561 | &bench_rb_custom, | |
562 | &bench_pb_libbpf, | |
563 | &bench_pb_custom, | |
57fd1c63 JK |
564 | &bench_bloom_lookup, |
565 | &bench_bloom_update, | |
566 | &bench_bloom_false_positive, | |
f44bc543 JK |
567 | &bench_hashmap_without_bloom, |
568 | &bench_hashmap_with_bloom, | |
ec151037 | 569 | &bench_bpf_loop, |
9c42652f HT |
570 | &bench_strncmp_no_helper, |
571 | &bench_strncmp_helper, | |
89eda984 | 572 | &bench_bpf_hashmap_full_update, |
73087489 DM |
573 | &bench_local_storage_cache_seq_get, |
574 | &bench_local_storage_cache_interleaved_get, | |
575 | &bench_local_storage_cache_hashmap_control, | |
2b4b2621 | 576 | &bench_local_storage_tasks_trace, |
f371f2dc | 577 | &bench_bpf_hashmap_lookup, |
4659fba1 | 578 | &bench_local_storage_create, |
fd283ab1 | 579 | &bench_htab_mem, |
8e7c2a02 AN |
580 | }; |
581 | ||
22ff7aea | 582 | static void find_benchmark(void) |
8e7c2a02 | 583 | { |
22ff7aea | 584 | int i; |
8e7c2a02 AN |
585 | |
586 | if (!env.bench_name) { | |
587 | fprintf(stderr, "benchmark name is not specified\n"); | |
588 | exit(1); | |
589 | } | |
8e7c2a02 AN |
590 | for (i = 0; i < ARRAY_SIZE(benchs); i++) { |
591 | if (strcmp(benchs[i]->name, env.bench_name) == 0) { | |
592 | bench = benchs[i]; | |
593 | break; | |
594 | } | |
595 | } | |
596 | if (!bench) { | |
597 | fprintf(stderr, "benchmark '%s' not found\n", env.bench_name); | |
598 | exit(1); | |
599 | } | |
22ff7aea AP |
600 | } |
601 | ||
602 | static void setup_benchmark(void) | |
603 | { | |
604 | int i, err; | |
8e7c2a02 | 605 | |
a237dda0 AP |
606 | if (!env.quiet) |
607 | printf("Setting up benchmark '%s'...\n", bench->name); | |
8e7c2a02 AN |
608 | |
609 | state.producers = calloc(env.producer_cnt, sizeof(*state.producers)); | |
610 | state.consumers = calloc(env.consumer_cnt, sizeof(*state.consumers)); | |
611 | state.results = calloc(env.duration_sec + env.warmup_sec + 2, | |
612 | sizeof(*state.results)); | |
613 | if (!state.producers || !state.consumers || !state.results) | |
614 | exit(1); | |
615 | ||
616 | if (bench->validate) | |
617 | bench->validate(); | |
618 | if (bench->setup) | |
619 | bench->setup(); | |
620 | ||
621 | for (i = 0; i < env.consumer_cnt; i++) { | |
943b043a AN |
622 | if (!bench->consumer_thread) { |
623 | fprintf(stderr, "benchmark doesn't support consumers!\n"); | |
624 | exit(1); | |
625 | } | |
8e7c2a02 AN |
626 | err = pthread_create(&state.consumers[i], NULL, |
627 | bench->consumer_thread, (void *)(long)i); | |
628 | if (err) { | |
629 | fprintf(stderr, "failed to create consumer thread #%d: %d\n", | |
ea400d13 | 630 | i, -err); |
8e7c2a02 AN |
631 | exit(1); |
632 | } | |
633 | if (env.affinity) | |
634 | set_thread_affinity(state.consumers[i], | |
635 | next_cpu(&env.cons_cpus)); | |
636 | } | |
637 | ||
638 | /* unless explicit producer CPU list is specified, continue after | |
639 | * last consumer CPU | |
640 | */ | |
641 | if (!env.prod_cpus.cpus) | |
642 | env.prod_cpus.next_cpu = env.cons_cpus.next_cpu; | |
643 | ||
644 | for (i = 0; i < env.producer_cnt; i++) { | |
943b043a AN |
645 | if (!bench->producer_thread) { |
646 | fprintf(stderr, "benchmark doesn't support producers!\n"); | |
647 | exit(1); | |
648 | } | |
8e7c2a02 AN |
649 | err = pthread_create(&state.producers[i], NULL, |
650 | bench->producer_thread, (void *)(long)i); | |
651 | if (err) { | |
652 | fprintf(stderr, "failed to create producer thread #%d: %d\n", | |
ea400d13 | 653 | i, -err); |
8e7c2a02 AN |
654 | exit(1); |
655 | } | |
656 | if (env.affinity) | |
657 | set_thread_affinity(state.producers[i], | |
658 | next_cpu(&env.prod_cpus)); | |
659 | } | |
660 | ||
a237dda0 AP |
661 | if (!env.quiet) |
662 | printf("Benchmark '%s' started.\n", bench->name); | |
8e7c2a02 AN |
663 | } |
664 | ||
665 | static pthread_mutex_t bench_done_mtx = PTHREAD_MUTEX_INITIALIZER; | |
666 | static pthread_cond_t bench_done = PTHREAD_COND_INITIALIZER; | |
667 | ||
668 | static void collect_measurements(long delta_ns) { | |
669 | int iter = state.res_cnt++; | |
670 | struct bench_res *res = &state.results[iter]; | |
671 | ||
672 | bench->measure(res); | |
673 | ||
674 | if (bench->report_progress) | |
675 | bench->report_progress(iter, res, delta_ns); | |
676 | ||
677 | if (iter == env.duration_sec + env.warmup_sec) { | |
678 | pthread_mutex_lock(&bench_done_mtx); | |
679 | pthread_cond_signal(&bench_done); | |
680 | pthread_mutex_unlock(&bench_done_mtx); | |
681 | } | |
682 | } | |
683 | ||
684 | int main(int argc, char **argv) | |
685 | { | |
da77ae2b | 686 | env.nr_cpus = get_nprocs(); |
22ff7aea | 687 | parse_cmdline_args_init(argc, argv); |
8e7c2a02 AN |
688 | |
689 | if (env.list) { | |
690 | int i; | |
691 | ||
692 | printf("Available benchmarks:\n"); | |
693 | for (i = 0; i < ARRAY_SIZE(benchs); i++) { | |
694 | printf("- %s\n", benchs[i]->name); | |
695 | } | |
696 | return 0; | |
697 | } | |
698 | ||
22ff7aea AP |
699 | find_benchmark(); |
700 | parse_cmdline_args_final(argc, argv); | |
701 | ||
8e7c2a02 AN |
702 | setup_benchmark(); |
703 | ||
704 | setup_timer(); | |
705 | ||
706 | pthread_mutex_lock(&bench_done_mtx); | |
707 | pthread_cond_wait(&bench_done, &bench_done_mtx); | |
708 | pthread_mutex_unlock(&bench_done_mtx); | |
709 | ||
710 | if (bench->report_final) | |
711 | /* skip first sample */ | |
712 | bench->report_final(state.results + env.warmup_sec, | |
713 | state.res_cnt - env.warmup_sec); | |
714 | ||
715 | return 0; | |
716 | } |