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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 "util/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", "Test 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", "Test all scheduler benchmarks", NULL },
48 { NULL, NULL, NULL }
49};
50
51static struct bench mem_benchmarks[] = {
52 { "memcpy", "Benchmark for memcpy()", bench_mem_memcpy },
53 { "memset", "Benchmark for memset() tests", bench_mem_memset },
54 { "all", "Test all memory 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 { "requeue", "Benchmark for futex requeue calls", bench_futex_requeue },
62 { "all", "Test all futex benchmarks", NULL },
63 { NULL, NULL, NULL }
64};
65
66struct collection {
67 const char *name;
68 const char *summary;
69 struct bench *benchmarks;
70};
71
72static struct collection collections[] = {
73 { "sched", "Scheduler and IPC benchmarks", sched_benchmarks },
74 { "mem", "Memory access benchmarks", mem_benchmarks },
75#ifdef HAVE_LIBNUMA_SUPPORT
76 { "numa", "NUMA scheduling and MM benchmarks", numa_benchmarks },
77#endif
78 {"futex", "Futex stressing benchmarks", futex_benchmarks },
79 { "all", "All benchmarks", NULL },
80 { NULL, NULL, NULL }
81};
82
83/* Iterate over all benchmark collections: */
84#define for_each_collection(coll) \
85 for (coll = collections; coll->name; coll++)
86
87/* Iterate over all benchmarks within a collection: */
88#define for_each_bench(coll, bench) \
89 for (bench = coll->benchmarks; bench && bench->name; bench++)
90
91static void dump_benchmarks(struct collection *coll)
92{
93 struct bench *bench;
94
95 printf("\n # List of available benchmarks for collection '%s':\n\n", coll->name);
96
97 for_each_bench(coll, bench)
98 printf("%14s: %s\n", bench->name, bench->summary);
99
100 printf("\n");
101}
102
103static const char *bench_format_str;
104
105/* Output/formatting style, exported to benchmark modules: */
106int bench_format = BENCH_FORMAT_DEFAULT;
107
108static const struct option bench_options[] = {
109 OPT_STRING('f', "format", &bench_format_str, "default", "Specify format style"),
110 OPT_END()
111};
112
113static const char * const bench_usage[] = {
114 "perf bench [<common options>] <collection> <benchmark> [<options>]",
115 NULL
116};
117
118static void print_usage(void)
119{
120 struct collection *coll;
121 int i;
122
123 printf("Usage: \n");
124 for (i = 0; bench_usage[i]; i++)
125 printf("\t%s\n", bench_usage[i]);
126 printf("\n");
127
128 printf(" # List of all available benchmark collections:\n\n");
129
130 for_each_collection(coll)
131 printf("%14s: %s\n", coll->name, coll->summary);
132 printf("\n");
133}
134
135static int bench_str2int(const char *str)
136{
137 if (!str)
138 return BENCH_FORMAT_DEFAULT;
139
140 if (!strcmp(str, BENCH_FORMAT_DEFAULT_STR))
141 return BENCH_FORMAT_DEFAULT;
142 else if (!strcmp(str, BENCH_FORMAT_SIMPLE_STR))
143 return BENCH_FORMAT_SIMPLE;
144
145 return BENCH_FORMAT_UNKNOWN;
146}
147
148/*
149 * Run a specific benchmark but first rename the running task's ->comm[]
150 * to something meaningful:
151 */
152static int run_bench(const char *coll_name, const char *bench_name, bench_fn_t fn,
153 int argc, const char **argv, const char *prefix)
154{
155 int size;
156 char *name;
157 int ret;
158
159 size = strlen(coll_name) + 1 + strlen(bench_name) + 1;
160
161 name = zalloc(size);
162 BUG_ON(!name);
163
164 scnprintf(name, size, "%s-%s", coll_name, bench_name);
165
166 prctl(PR_SET_NAME, name);
167 argv[0] = name;
168
169 ret = fn(argc, argv, prefix);
170
171 free(name);
172
173 return ret;
174}
175
176static void run_collection(struct collection *coll)
177{
178 struct bench *bench;
179 const char *argv[2];
180
181 argv[1] = NULL;
182 /*
183 * TODO:
184 *
185 * Preparing preset parameters for
186 * embedded, ordinary PC, HPC, etc...
187 * would be helpful.
188 */
189 for_each_bench(coll, bench) {
190 if (!bench->fn)
191 break;
192 printf("# Running %s/%s benchmark...\n", coll->name, bench->name);
193 fflush(stdout);
194
195 argv[1] = bench->name;
196 run_bench(coll->name, bench->name, bench->fn, 1, argv, NULL);
197 printf("\n");
198 }
199}
200
201static void run_all_collections(void)
202{
203 struct collection *coll;
204
205 for_each_collection(coll)
206 run_collection(coll);
207}
208
209int cmd_bench(int argc, const char **argv, const char *prefix __maybe_unused)
210{
211 struct collection *coll;
212 int ret = 0;
213
214 if (argc < 2) {
215 /* No collection specified. */
216 print_usage();
217 goto end;
218 }
219
220 argc = parse_options(argc, argv, bench_options, bench_usage,
221 PARSE_OPT_STOP_AT_NON_OPTION);
222
223 bench_format = bench_str2int(bench_format_str);
224 if (bench_format == BENCH_FORMAT_UNKNOWN) {
225 printf("Unknown format descriptor: '%s'\n", bench_format_str);
226 goto end;
227 }
228
229 if (argc < 1) {
230 print_usage();
231 goto end;
232 }
233
234 if (!strcmp(argv[0], "all")) {
235 run_all_collections();
236 goto end;
237 }
238
239 for_each_collection(coll) {
240 struct bench *bench;
241
242 if (strcmp(coll->name, argv[0]))
243 continue;
244
245 if (argc < 2) {
246 /* No bench specified. */
247 dump_benchmarks(coll);
248 goto end;
249 }
250
251 if (!strcmp(argv[1], "all")) {
252 run_collection(coll);
253 goto end;
254 }
255
256 for_each_bench(coll, bench) {
257 if (strcmp(bench->name, argv[1]))
258 continue;
259
260 if (bench_format == BENCH_FORMAT_DEFAULT)
261 printf("# Running '%s/%s' benchmark:\n", coll->name, bench->name);
262 fflush(stdout);
263 ret = run_bench(coll->name, bench->name, bench->fn, argc-1, argv+1, prefix);
264 goto end;
265 }
266
267 if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")) {
268 dump_benchmarks(coll);
269 goto end;
270 }
271
272 printf("Unknown benchmark: '%s' for collection '%s'\n", argv[1], argv[0]);
273 ret = 1;
274 goto end;
275 }
276
277 printf("Unknown collection: '%s'\n", argv[0]);
278 ret = 1;
279
280end:
281 return ret;
282}
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}