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1// SPDX-License-Identifier: GPL-2.0
2/*
3 * builtin-bench.c
4 *
5 * General benchmarking collections provided by perf
6 *
7 * Copyright (C) 2009, Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
8 */
9
10/*
11 * Available benchmark collection list:
12 *
13 * sched ... scheduler and IPC performance
14 * syscall ... System call performance
15 * mem ... memory access performance
16 * numa ... NUMA scheduling and MM performance
17 * futex ... Futex performance
18 * epoll ... Event poll performance
19 */
20#include <subcmd/parse-options.h>
21#include "builtin.h"
22#include "bench/bench.h"
23
24#include <stdio.h>
25#include <stdlib.h>
26#include <string.h>
27#include <sys/prctl.h>
28#include <linux/zalloc.h>
29
30typedef int (*bench_fn_t)(int argc, const char **argv);
31
32struct bench {
33 const char *name;
34 const char *summary;
35 bench_fn_t fn;
36};
37
38#ifdef HAVE_LIBNUMA_SUPPORT
39static struct bench numa_benchmarks[] = {
40 { "mem", "Benchmark for NUMA workloads", bench_numa },
41 { "all", "Run all NUMA benchmarks", NULL },
42 { NULL, NULL, NULL }
43};
44#endif
45
46static struct bench sched_benchmarks[] = {
47 { "messaging", "Benchmark for scheduling and IPC", bench_sched_messaging },
48 { "pipe", "Benchmark for pipe() between two processes", bench_sched_pipe },
49 { "all", "Run all scheduler benchmarks", NULL },
50 { NULL, NULL, NULL }
51};
52
53static struct bench syscall_benchmarks[] = {
54 { "basic", "Benchmark for basic getppid(2) calls", bench_syscall_basic },
55 { "all", "Run all syscall benchmarks", NULL },
56 { NULL, NULL, NULL },
57};
58
59static struct bench mem_benchmarks[] = {
60 { "memcpy", "Benchmark for memcpy() functions", bench_mem_memcpy },
61 { "memset", "Benchmark for memset() functions", bench_mem_memset },
62 { "find_bit", "Benchmark for find_bit() functions", bench_mem_find_bit },
63 { "all", "Run all memory access benchmarks", NULL },
64 { NULL, NULL, NULL }
65};
66
67static struct bench futex_benchmarks[] = {
68 { "hash", "Benchmark for futex hash table", bench_futex_hash },
69 { "wake", "Benchmark for futex wake calls", bench_futex_wake },
70 { "wake-parallel", "Benchmark for parallel futex wake calls", bench_futex_wake_parallel },
71 { "requeue", "Benchmark for futex requeue calls", bench_futex_requeue },
72 /* pi-futexes */
73 { "lock-pi", "Benchmark for futex lock_pi calls", bench_futex_lock_pi },
74 { "all", "Run all futex benchmarks", NULL },
75 { NULL, NULL, NULL }
76};
77
78#ifdef HAVE_EVENTFD_SUPPORT
79static struct bench epoll_benchmarks[] = {
80 { "wait", "Benchmark epoll concurrent epoll_waits", bench_epoll_wait },
81 { "ctl", "Benchmark epoll concurrent epoll_ctls", bench_epoll_ctl },
82 { "all", "Run all futex benchmarks", NULL },
83 { NULL, NULL, NULL }
84};
85#endif // HAVE_EVENTFD_SUPPORT
86
87static struct bench internals_benchmarks[] = {
88 { "synthesize", "Benchmark perf event synthesis", bench_synthesize },
89 { "kallsyms-parse", "Benchmark kallsyms parsing", bench_kallsyms_parse },
90 { "inject-build-id", "Benchmark build-id injection", bench_inject_build_id },
91 { "evlist-open-close", "Benchmark evlist open and close", bench_evlist_open_close },
92 { NULL, NULL, NULL }
93};
94
95static struct bench breakpoint_benchmarks[] = {
96 { "thread", "Benchmark thread start/finish with breakpoints", bench_breakpoint_thread},
97 { "enable", "Benchmark breakpoint enable/disable", bench_breakpoint_enable},
98 { "all", "Run all breakpoint benchmarks", NULL},
99 { NULL, NULL, NULL },
100};
101
102struct collection {
103 const char *name;
104 const char *summary;
105 struct bench *benchmarks;
106};
107
108static struct collection collections[] = {
109 { "sched", "Scheduler and IPC benchmarks", sched_benchmarks },
110 { "syscall", "System call benchmarks", syscall_benchmarks },
111 { "mem", "Memory access benchmarks", mem_benchmarks },
112#ifdef HAVE_LIBNUMA_SUPPORT
113 { "numa", "NUMA scheduling and MM benchmarks", numa_benchmarks },
114#endif
115 {"futex", "Futex stressing benchmarks", futex_benchmarks },
116#ifdef HAVE_EVENTFD_SUPPORT
117 {"epoll", "Epoll stressing benchmarks", epoll_benchmarks },
118#endif
119 { "internals", "Perf-internals benchmarks", internals_benchmarks },
120 { "breakpoint", "Breakpoint benchmarks", breakpoint_benchmarks },
121 { "all", "All benchmarks", NULL },
122 { NULL, NULL, NULL }
123};
124
125/* Iterate over all benchmark collections: */
126#define for_each_collection(coll) \
127 for (coll = collections; coll->name; coll++)
128
129/* Iterate over all benchmarks within a collection: */
130#define for_each_bench(coll, bench) \
131 for (bench = coll->benchmarks; bench && bench->name; bench++)
132
133static void dump_benchmarks(struct collection *coll)
134{
135 struct bench *bench;
136
137 printf("\n # List of available benchmarks for collection '%s':\n\n", coll->name);
138
139 for_each_bench(coll, bench)
140 printf("%14s: %s\n", bench->name, bench->summary);
141
142 printf("\n");
143}
144
145static const char *bench_format_str;
146
147/* Output/formatting style, exported to benchmark modules: */
148int bench_format = BENCH_FORMAT_DEFAULT;
149unsigned int bench_repeat = 10; /* default number of times to repeat the run */
150
151static const struct option bench_options[] = {
152 OPT_STRING('f', "format", &bench_format_str, "default|simple", "Specify the output formatting style"),
153 OPT_UINTEGER('r', "repeat", &bench_repeat, "Specify amount of times to repeat the run"),
154 OPT_END()
155};
156
157static const char * const bench_usage[] = {
158 "perf bench [<common options>] <collection> <benchmark> [<options>]",
159 NULL
160};
161
162static void print_usage(void)
163{
164 struct collection *coll;
165 int i;
166
167 printf("Usage: \n");
168 for (i = 0; bench_usage[i]; i++)
169 printf("\t%s\n", bench_usage[i]);
170 printf("\n");
171
172 printf(" # List of all available benchmark collections:\n\n");
173
174 for_each_collection(coll)
175 printf("%14s: %s\n", coll->name, coll->summary);
176 printf("\n");
177}
178
179static int bench_str2int(const char *str)
180{
181 if (!str)
182 return BENCH_FORMAT_DEFAULT;
183
184 if (!strcmp(str, BENCH_FORMAT_DEFAULT_STR))
185 return BENCH_FORMAT_DEFAULT;
186 else if (!strcmp(str, BENCH_FORMAT_SIMPLE_STR))
187 return BENCH_FORMAT_SIMPLE;
188
189 return BENCH_FORMAT_UNKNOWN;
190}
191
192/*
193 * Run a specific benchmark but first rename the running task's ->comm[]
194 * to something meaningful:
195 */
196static int run_bench(const char *coll_name, const char *bench_name, bench_fn_t fn,
197 int argc, const char **argv)
198{
199 int size;
200 char *name;
201 int ret;
202
203 size = strlen(coll_name) + 1 + strlen(bench_name) + 1;
204
205 name = zalloc(size);
206 BUG_ON(!name);
207
208 scnprintf(name, size, "%s-%s", coll_name, bench_name);
209
210 prctl(PR_SET_NAME, name);
211 argv[0] = name;
212
213 ret = fn(argc, argv);
214
215 free(name);
216
217 return ret;
218}
219
220static void run_collection(struct collection *coll)
221{
222 struct bench *bench;
223 const char *argv[2];
224
225 argv[1] = NULL;
226 /*
227 * TODO:
228 *
229 * Preparing preset parameters for
230 * embedded, ordinary PC, HPC, etc...
231 * would be helpful.
232 */
233 for_each_bench(coll, bench) {
234 if (!bench->fn)
235 break;
236 printf("# Running %s/%s benchmark...\n", coll->name, bench->name);
237
238 argv[1] = bench->name;
239 run_bench(coll->name, bench->name, bench->fn, 1, argv);
240 printf("\n");
241 }
242}
243
244static void run_all_collections(void)
245{
246 struct collection *coll;
247
248 for_each_collection(coll)
249 run_collection(coll);
250}
251
252int cmd_bench(int argc, const char **argv)
253{
254 struct collection *coll;
255 int ret = 0;
256
257 /* Unbuffered output */
258 setvbuf(stdout, NULL, _IONBF, 0);
259
260 if (argc < 2) {
261 /* No collection specified. */
262 print_usage();
263 goto end;
264 }
265
266 argc = parse_options(argc, argv, bench_options, bench_usage,
267 PARSE_OPT_STOP_AT_NON_OPTION);
268
269 bench_format = bench_str2int(bench_format_str);
270 if (bench_format == BENCH_FORMAT_UNKNOWN) {
271 printf("Unknown format descriptor: '%s'\n", bench_format_str);
272 goto end;
273 }
274
275 if (bench_repeat == 0) {
276 printf("Invalid repeat option: Must specify a positive value\n");
277 goto end;
278 }
279
280 if (argc < 1) {
281 print_usage();
282 goto end;
283 }
284
285 if (!strcmp(argv[0], "all")) {
286 run_all_collections();
287 goto end;
288 }
289
290 for_each_collection(coll) {
291 struct bench *bench;
292
293 if (strcmp(coll->name, argv[0]))
294 continue;
295
296 if (argc < 2) {
297 /* No bench specified. */
298 dump_benchmarks(coll);
299 goto end;
300 }
301
302 if (!strcmp(argv[1], "all")) {
303 run_collection(coll);
304 goto end;
305 }
306
307 for_each_bench(coll, bench) {
308 if (strcmp(bench->name, argv[1]))
309 continue;
310
311 if (bench_format == BENCH_FORMAT_DEFAULT)
312 printf("# Running '%s/%s' benchmark:\n", coll->name, bench->name);
313 ret = run_bench(coll->name, bench->name, bench->fn, argc-1, argv+1);
314 goto end;
315 }
316
317 if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")) {
318 dump_benchmarks(coll);
319 goto end;
320 }
321
322 printf("Unknown benchmark: '%s' for collection '%s'\n", argv[1], argv[0]);
323 ret = 1;
324 goto end;
325 }
326
327 printf("Unknown collection: '%s'\n", argv[0]);
328 ret = 1;
329
330end:
331 return ret;
332}
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * builtin-bench.c
4 *
5 * General benchmarking collections provided by perf
6 *
7 * Copyright (C) 2009, Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
8 */
9
10/*
11 * Available benchmark collection list:
12 *
13 * sched ... scheduler and IPC performance
14 * syscall ... System call performance
15 * mem ... memory access performance
16 * numa ... NUMA scheduling and MM performance
17 * futex ... Futex performance
18 * epoll ... Event poll performance
19 */
20#include <subcmd/parse-options.h>
21#include "builtin.h"
22#include "bench/bench.h"
23
24#include <stdio.h>
25#include <stdlib.h>
26#include <string.h>
27#include <sys/prctl.h>
28#include <linux/zalloc.h>
29
30typedef int (*bench_fn_t)(int argc, const char **argv);
31
32struct bench {
33 const char *name;
34 const char *summary;
35 bench_fn_t fn;
36};
37
38#ifdef HAVE_LIBNUMA_SUPPORT
39static struct bench numa_benchmarks[] = {
40 { "mem", "Benchmark for NUMA workloads", bench_numa },
41 { "all", "Run all NUMA benchmarks", NULL },
42 { NULL, NULL, NULL }
43};
44#endif
45
46static struct bench sched_benchmarks[] = {
47 { "messaging", "Benchmark for scheduling and IPC", bench_sched_messaging },
48 { "pipe", "Benchmark for pipe() between two processes", bench_sched_pipe },
49 { "all", "Run all scheduler benchmarks", NULL },
50 { NULL, NULL, NULL }
51};
52
53static struct bench syscall_benchmarks[] = {
54 { "basic", "Benchmark for basic getppid(2) calls", bench_syscall_basic },
55 { "all", "Run all syscall benchmarks", NULL },
56 { NULL, NULL, NULL },
57};
58
59static struct bench mem_benchmarks[] = {
60 { "memcpy", "Benchmark for memcpy() functions", bench_mem_memcpy },
61 { "memset", "Benchmark for memset() functions", bench_mem_memset },
62 { "find_bit", "Benchmark for find_bit() functions", bench_mem_find_bit },
63 { "all", "Run all memory access benchmarks", NULL },
64 { NULL, NULL, NULL }
65};
66
67static struct bench futex_benchmarks[] = {
68 { "hash", "Benchmark for futex hash table", bench_futex_hash },
69 { "wake", "Benchmark for futex wake calls", bench_futex_wake },
70 { "wake-parallel", "Benchmark for parallel futex wake calls", bench_futex_wake_parallel },
71 { "requeue", "Benchmark for futex requeue calls", bench_futex_requeue },
72 /* pi-futexes */
73 { "lock-pi", "Benchmark for futex lock_pi calls", bench_futex_lock_pi },
74 { "all", "Run all futex benchmarks", NULL },
75 { NULL, NULL, NULL }
76};
77
78#ifdef HAVE_EVENTFD_SUPPORT
79static struct bench epoll_benchmarks[] = {
80 { "wait", "Benchmark epoll concurrent epoll_waits", bench_epoll_wait },
81 { "ctl", "Benchmark epoll concurrent epoll_ctls", bench_epoll_ctl },
82 { "all", "Run all futex benchmarks", NULL },
83 { NULL, NULL, NULL }
84};
85#endif // HAVE_EVENTFD_SUPPORT
86
87static struct bench internals_benchmarks[] = {
88 { "synthesize", "Benchmark perf event synthesis", bench_synthesize },
89 { "kallsyms-parse", "Benchmark kallsyms parsing", bench_kallsyms_parse },
90 { "inject-build-id", "Benchmark build-id injection", bench_inject_build_id },
91 { NULL, NULL, NULL }
92};
93
94struct collection {
95 const char *name;
96 const char *summary;
97 struct bench *benchmarks;
98};
99
100static struct collection collections[] = {
101 { "sched", "Scheduler and IPC benchmarks", sched_benchmarks },
102 { "syscall", "System call benchmarks", syscall_benchmarks },
103 { "mem", "Memory access benchmarks", mem_benchmarks },
104#ifdef HAVE_LIBNUMA_SUPPORT
105 { "numa", "NUMA scheduling and MM benchmarks", numa_benchmarks },
106#endif
107 {"futex", "Futex stressing benchmarks", futex_benchmarks },
108#ifdef HAVE_EVENTFD_SUPPORT
109 {"epoll", "Epoll stressing benchmarks", epoll_benchmarks },
110#endif
111 { "internals", "Perf-internals benchmarks", internals_benchmarks },
112 { "all", "All benchmarks", NULL },
113 { NULL, NULL, NULL }
114};
115
116/* Iterate over all benchmark collections: */
117#define for_each_collection(coll) \
118 for (coll = collections; coll->name; coll++)
119
120/* Iterate over all benchmarks within a collection: */
121#define for_each_bench(coll, bench) \
122 for (bench = coll->benchmarks; bench && bench->name; bench++)
123
124static void dump_benchmarks(struct collection *coll)
125{
126 struct bench *bench;
127
128 printf("\n # List of available benchmarks for collection '%s':\n\n", coll->name);
129
130 for_each_bench(coll, bench)
131 printf("%14s: %s\n", bench->name, bench->summary);
132
133 printf("\n");
134}
135
136static const char *bench_format_str;
137
138/* Output/formatting style, exported to benchmark modules: */
139int bench_format = BENCH_FORMAT_DEFAULT;
140unsigned int bench_repeat = 10; /* default number of times to repeat the run */
141
142static const struct option bench_options[] = {
143 OPT_STRING('f', "format", &bench_format_str, "default|simple", "Specify the output formatting style"),
144 OPT_UINTEGER('r', "repeat", &bench_repeat, "Specify amount of times to repeat the run"),
145 OPT_END()
146};
147
148static const char * const bench_usage[] = {
149 "perf bench [<common options>] <collection> <benchmark> [<options>]",
150 NULL
151};
152
153static void print_usage(void)
154{
155 struct collection *coll;
156 int i;
157
158 printf("Usage: \n");
159 for (i = 0; bench_usage[i]; i++)
160 printf("\t%s\n", bench_usage[i]);
161 printf("\n");
162
163 printf(" # List of all available benchmark collections:\n\n");
164
165 for_each_collection(coll)
166 printf("%14s: %s\n", coll->name, coll->summary);
167 printf("\n");
168}
169
170static int bench_str2int(const char *str)
171{
172 if (!str)
173 return BENCH_FORMAT_DEFAULT;
174
175 if (!strcmp(str, BENCH_FORMAT_DEFAULT_STR))
176 return BENCH_FORMAT_DEFAULT;
177 else if (!strcmp(str, BENCH_FORMAT_SIMPLE_STR))
178 return BENCH_FORMAT_SIMPLE;
179
180 return BENCH_FORMAT_UNKNOWN;
181}
182
183/*
184 * Run a specific benchmark but first rename the running task's ->comm[]
185 * to something meaningful:
186 */
187static int run_bench(const char *coll_name, const char *bench_name, bench_fn_t fn,
188 int argc, const char **argv)
189{
190 int size;
191 char *name;
192 int ret;
193
194 size = strlen(coll_name) + 1 + strlen(bench_name) + 1;
195
196 name = zalloc(size);
197 BUG_ON(!name);
198
199 scnprintf(name, size, "%s-%s", coll_name, bench_name);
200
201 prctl(PR_SET_NAME, name);
202 argv[0] = name;
203
204 ret = fn(argc, argv);
205
206 free(name);
207
208 return ret;
209}
210
211static void run_collection(struct collection *coll)
212{
213 struct bench *bench;
214 const char *argv[2];
215
216 argv[1] = NULL;
217 /*
218 * TODO:
219 *
220 * Preparing preset parameters for
221 * embedded, ordinary PC, HPC, etc...
222 * would be helpful.
223 */
224 for_each_bench(coll, bench) {
225 if (!bench->fn)
226 break;
227 printf("# Running %s/%s benchmark...\n", coll->name, bench->name);
228 fflush(stdout);
229
230 argv[1] = bench->name;
231 run_bench(coll->name, bench->name, bench->fn, 1, argv);
232 printf("\n");
233 }
234}
235
236static void run_all_collections(void)
237{
238 struct collection *coll;
239
240 for_each_collection(coll)
241 run_collection(coll);
242}
243
244int cmd_bench(int argc, const char **argv)
245{
246 struct collection *coll;
247 int ret = 0;
248
249 if (argc < 2) {
250 /* No collection specified. */
251 print_usage();
252 goto end;
253 }
254
255 argc = parse_options(argc, argv, bench_options, bench_usage,
256 PARSE_OPT_STOP_AT_NON_OPTION);
257
258 bench_format = bench_str2int(bench_format_str);
259 if (bench_format == BENCH_FORMAT_UNKNOWN) {
260 printf("Unknown format descriptor: '%s'\n", bench_format_str);
261 goto end;
262 }
263
264 if (bench_repeat == 0) {
265 printf("Invalid repeat option: Must specify a positive value\n");
266 goto end;
267 }
268
269 if (argc < 1) {
270 print_usage();
271 goto end;
272 }
273
274 if (!strcmp(argv[0], "all")) {
275 run_all_collections();
276 goto end;
277 }
278
279 for_each_collection(coll) {
280 struct bench *bench;
281
282 if (strcmp(coll->name, argv[0]))
283 continue;
284
285 if (argc < 2) {
286 /* No bench specified. */
287 dump_benchmarks(coll);
288 goto end;
289 }
290
291 if (!strcmp(argv[1], "all")) {
292 run_collection(coll);
293 goto end;
294 }
295
296 for_each_bench(coll, bench) {
297 if (strcmp(bench->name, argv[1]))
298 continue;
299
300 if (bench_format == BENCH_FORMAT_DEFAULT)
301 printf("# Running '%s/%s' benchmark:\n", coll->name, bench->name);
302 fflush(stdout);
303 ret = run_bench(coll->name, bench->name, bench->fn, argc-1, argv+1);
304 goto end;
305 }
306
307 if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")) {
308 dump_benchmarks(coll);
309 goto end;
310 }
311
312 printf("Unknown benchmark: '%s' for collection '%s'\n", argv[1], argv[0]);
313 ret = 1;
314 goto end;
315 }
316
317 printf("Unknown collection: '%s'\n", argv[0]);
318 ret = 1;
319
320end:
321 return ret;
322}