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1/*
2 *
3 * builtin-bench.c
4 *
5 * General benchmarking subsystem provided by perf
6 *
7 * Copyright (C) 2009, Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
8 *
9 */
10
11/*
12 *
13 * Available subsystem list:
14 * sched ... scheduler and IPC mechanism
15 * mem ... memory access performance
16 *
17 */
18
19#include "perf.h"
20#include "util/util.h"
21#include "util/parse-options.h"
22#include "builtin.h"
23#include "bench/bench.h"
24
25#include <stdio.h>
26#include <stdlib.h>
27#include <string.h>
28
29struct bench_suite {
30 const char *name;
31 const char *summary;
32 int (*fn)(int, const char **, const char *);
33};
34 \
35/* sentinel: easy for help */
36#define suite_all { "all", "test all suite (pseudo suite)", NULL }
37
38static struct bench_suite sched_suites[] = {
39 { "messaging",
40 "Benchmark for scheduler and IPC mechanisms",
41 bench_sched_messaging },
42 { "pipe",
43 "Flood of communication over pipe() between two processes",
44 bench_sched_pipe },
45 suite_all,
46 { NULL,
47 NULL,
48 NULL }
49};
50
51static struct bench_suite mem_suites[] = {
52 { "memcpy",
53 "Simple memory copy in various ways",
54 bench_mem_memcpy },
55 { "memset",
56 "Simple memory set in various ways",
57 bench_mem_memset },
58 suite_all,
59 { NULL,
60 NULL,
61 NULL }
62};
63
64struct bench_subsys {
65 const char *name;
66 const char *summary;
67 struct bench_suite *suites;
68};
69
70static struct bench_subsys subsystems[] = {
71 { "sched",
72 "scheduler and IPC mechanism",
73 sched_suites },
74 { "mem",
75 "memory access performance",
76 mem_suites },
77 { "all", /* sentinel: easy for help */
78 "test all subsystem (pseudo subsystem)",
79 NULL },
80 { NULL,
81 NULL,
82 NULL }
83};
84
85static void dump_suites(int subsys_index)
86{
87 int i;
88
89 printf("# List of available suites for %s...\n\n",
90 subsystems[subsys_index].name);
91
92 for (i = 0; subsystems[subsys_index].suites[i].name; i++)
93 printf("%14s: %s\n",
94 subsystems[subsys_index].suites[i].name,
95 subsystems[subsys_index].suites[i].summary);
96
97 printf("\n");
98 return;
99}
100
101static const char *bench_format_str;
102int bench_format = BENCH_FORMAT_DEFAULT;
103
104static const struct option bench_options[] = {
105 OPT_STRING('f', "format", &bench_format_str, "default",
106 "Specify format style"),
107 OPT_END()
108};
109
110static const char * const bench_usage[] = {
111 "perf bench [<common options>] <subsystem> <suite> [<options>]",
112 NULL
113};
114
115static void print_usage(void)
116{
117 int i;
118
119 printf("Usage: \n");
120 for (i = 0; bench_usage[i]; i++)
121 printf("\t%s\n", bench_usage[i]);
122 printf("\n");
123
124 printf("# List of available subsystems...\n\n");
125
126 for (i = 0; subsystems[i].name; i++)
127 printf("%14s: %s\n",
128 subsystems[i].name, subsystems[i].summary);
129 printf("\n");
130}
131
132static int bench_str2int(const char *str)
133{
134 if (!str)
135 return BENCH_FORMAT_DEFAULT;
136
137 if (!strcmp(str, BENCH_FORMAT_DEFAULT_STR))
138 return BENCH_FORMAT_DEFAULT;
139 else if (!strcmp(str, BENCH_FORMAT_SIMPLE_STR))
140 return BENCH_FORMAT_SIMPLE;
141
142 return BENCH_FORMAT_UNKNOWN;
143}
144
145static void all_suite(struct bench_subsys *subsys) /* FROM HERE */
146{
147 int i;
148 const char *argv[2];
149 struct bench_suite *suites = subsys->suites;
150
151 argv[1] = NULL;
152 /*
153 * TODO:
154 * preparing preset parameters for
155 * embedded, ordinary PC, HPC, etc...
156 * will be helpful
157 */
158 for (i = 0; suites[i].fn; i++) {
159 printf("# Running %s/%s benchmark...\n",
160 subsys->name,
161 suites[i].name);
162
163 argv[1] = suites[i].name;
164 suites[i].fn(1, argv, NULL);
165 printf("\n");
166 }
167}
168
169static void all_subsystem(void)
170{
171 int i;
172 for (i = 0; subsystems[i].suites; i++)
173 all_suite(&subsystems[i]);
174}
175
176int cmd_bench(int argc, const char **argv, const char *prefix __used)
177{
178 int i, j, status = 0;
179
180 if (argc < 2) {
181 /* No subsystem specified. */
182 print_usage();
183 goto end;
184 }
185
186 argc = parse_options(argc, argv, bench_options, bench_usage,
187 PARSE_OPT_STOP_AT_NON_OPTION);
188
189 bench_format = bench_str2int(bench_format_str);
190 if (bench_format == BENCH_FORMAT_UNKNOWN) {
191 printf("Unknown format descriptor:%s\n", bench_format_str);
192 goto end;
193 }
194
195 if (argc < 1) {
196 print_usage();
197 goto end;
198 }
199
200 if (!strcmp(argv[0], "all")) {
201 all_subsystem();
202 goto end;
203 }
204
205 for (i = 0; subsystems[i].name; i++) {
206 if (strcmp(subsystems[i].name, argv[0]))
207 continue;
208
209 if (argc < 2) {
210 /* No suite specified. */
211 dump_suites(i);
212 goto end;
213 }
214
215 if (!strcmp(argv[1], "all")) {
216 all_suite(&subsystems[i]);
217 goto end;
218 }
219
220 for (j = 0; subsystems[i].suites[j].name; j++) {
221 if (strcmp(subsystems[i].suites[j].name, argv[1]))
222 continue;
223
224 if (bench_format == BENCH_FORMAT_DEFAULT)
225 printf("# Running %s/%s benchmark...\n",
226 subsystems[i].name,
227 subsystems[i].suites[j].name);
228 status = subsystems[i].suites[j].fn(argc - 1,
229 argv + 1, prefix);
230 goto end;
231 }
232
233 if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")) {
234 dump_suites(i);
235 goto end;
236 }
237
238 printf("Unknown suite:%s for %s\n", argv[1], argv[0]);
239 status = 1;
240 goto end;
241 }
242
243 printf("Unknown subsystem:%s\n", argv[0]);
244 status = 1;
245
246end:
247 return status;
248}
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}