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