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Hitoshi Mitake629cc352009-11-05 09:31:34 +09001/*
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
Hitoshi Mitake827f3b42009-11-18 00:20:09 +090015 * mem ... memory access performance
Hitoshi Mitake629cc352009-11-05 09:31:34 +090016 *
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};
Hitoshi Mitake20442792009-12-13 17:01:59 +090034 \
35/* sentinel: easy for help */
Namhyung Kim08942f62012-06-20 15:08:06 +090036#define suite_all { "all", "Test all benchmark suites", NULL }
Hitoshi Mitake629cc352009-11-05 09:31:34 +090037
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 },
Hitoshi Mitake20442792009-12-13 17:01:59 +090045 suite_all,
Hitoshi Mitake629cc352009-11-05 09:31:34 +090046 { NULL,
47 NULL,
48 NULL }
49};
50
Hitoshi Mitake827f3b42009-11-18 00:20:09 +090051static struct bench_suite mem_suites[] = {
52 { "memcpy",
53 "Simple memory copy in various ways",
54 bench_mem_memcpy },
Jan Beulichbe3de802012-01-24 10:03:22 -020055 { "memset",
56 "Simple memory set in various ways",
57 bench_mem_memset },
Hitoshi Mitake20442792009-12-13 17:01:59 +090058 suite_all,
Hitoshi Mitake827f3b42009-11-18 00:20:09 +090059 { NULL,
60 NULL,
61 NULL }
62};
63
Hitoshi Mitake629cc352009-11-05 09:31:34 +090064struct 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 },
Hitoshi Mitake827f3b42009-11-18 00:20:09 +090074 { "mem",
75 "memory access performance",
76 mem_suites },
Hitoshi Mitake20442792009-12-13 17:01:59 +090077 { "all", /* sentinel: easy for help */
Namhyung Kim08942f62012-06-20 15:08:06 +090078 "all benchmark subsystem",
Hitoshi Mitake20442792009-12-13 17:01:59 +090079 NULL },
Hitoshi Mitake629cc352009-11-05 09:31:34 +090080 { NULL,
81 NULL,
Hitoshi Mitake827f3b42009-11-18 00:20:09 +090082 NULL }
Hitoshi Mitake629cc352009-11-05 09:31:34 +090083};
84
85static void dump_suites(int subsys_index)
86{
87 int i;
88
Hitoshi Mitake20442792009-12-13 17:01:59 +090089 printf("# List of available suites for %s...\n\n",
Hitoshi Mitake629cc352009-11-05 09:31:34 +090090 subsystems[subsys_index].name);
91
92 for (i = 0; subsystems[subsys_index].suites[i].name; i++)
Hitoshi Mitake20442792009-12-13 17:01:59 +090093 printf("%14s: %s\n",
Hitoshi Mitake629cc352009-11-05 09:31:34 +090094 subsystems[subsys_index].suites[i].name,
95 subsystems[subsys_index].suites[i].summary);
96
97 printf("\n");
98 return;
99}
100
Arnaldo Carvalho de Meloedb7c602010-05-17 16:22:41 -0300101static const char *bench_format_str;
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900102int 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
Hitoshi Mitake20442792009-12-13 17:01:59 +0900124 printf("# List of available subsystems...\n\n");
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900125
126 for (i = 0; subsystems[i].name; i++)
Hitoshi Mitake20442792009-12-13 17:01:59 +0900127 printf("%14s: %s\n",
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900128 subsystems[i].name, subsystems[i].summary);
129 printf("\n");
130}
131
Arnaldo Carvalho de Meloedb7c602010-05-17 16:22:41 -0300132static int bench_str2int(const char *str)
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900133{
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
Hitoshi Mitake20442792009-12-13 17:01:59 +0900145static 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);
Namhyung Kim9b494ea2013-01-08 18:39:26 +0900162 fflush(stdout);
Hitoshi Mitake20442792009-12-13 17:01:59 +0900163
164 argv[1] = suites[i].name;
165 suites[i].fn(1, argv, NULL);
166 printf("\n");
167 }
168}
169
170static void all_subsystem(void)
171{
172 int i;
173 for (i = 0; subsystems[i].suites; i++)
174 all_suite(&subsystems[i]);
175}
176
Irina Tirdea1d037ca2012-09-11 01:15:03 +0300177int cmd_bench(int argc, const char **argv, const char *prefix __maybe_unused)
Hitoshi Mitake629cc352009-11-05 09:31:34 +0900178{
179 int i, j, status = 0;
180
181 if (argc < 2) {
182 /* No subsystem specified. */
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900183 print_usage();
184 goto end;
185 }
Hitoshi Mitake629cc352009-11-05 09:31:34 +0900186
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900187 argc = parse_options(argc, argv, bench_options, bench_usage,
188 PARSE_OPT_STOP_AT_NON_OPTION);
Hitoshi Mitake629cc352009-11-05 09:31:34 +0900189
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900190 bench_format = bench_str2int(bench_format_str);
191 if (bench_format == BENCH_FORMAT_UNKNOWN) {
192 printf("Unknown format descriptor:%s\n", bench_format_str);
193 goto end;
194 }
195
196 if (argc < 1) {
197 print_usage();
Hitoshi Mitake629cc352009-11-05 09:31:34 +0900198 goto end;
199 }
200
Hitoshi Mitake20442792009-12-13 17:01:59 +0900201 if (!strcmp(argv[0], "all")) {
202 all_subsystem();
203 goto end;
204 }
205
Hitoshi Mitake629cc352009-11-05 09:31:34 +0900206 for (i = 0; subsystems[i].name; i++) {
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900207 if (strcmp(subsystems[i].name, argv[0]))
Hitoshi Mitake629cc352009-11-05 09:31:34 +0900208 continue;
209
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900210 if (argc < 2) {
Hitoshi Mitake629cc352009-11-05 09:31:34 +0900211 /* No suite specified. */
212 dump_suites(i);
213 goto end;
214 }
215
Hitoshi Mitake20442792009-12-13 17:01:59 +0900216 if (!strcmp(argv[1], "all")) {
217 all_suite(&subsystems[i]);
218 goto end;
219 }
220
Hitoshi Mitake629cc352009-11-05 09:31:34 +0900221 for (j = 0; subsystems[i].suites[j].name; j++) {
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900222 if (strcmp(subsystems[i].suites[j].name, argv[1]))
Hitoshi Mitake629cc352009-11-05 09:31:34 +0900223 continue;
224
Hitoshi Mitake79e295d2009-11-11 00:04:00 +0900225 if (bench_format == BENCH_FORMAT_DEFAULT)
226 printf("# Running %s/%s benchmark...\n",
227 subsystems[i].name,
228 subsystems[i].suites[j].name);
Namhyung Kim9b494ea2013-01-08 18:39:26 +0900229 fflush(stdout);
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900230 status = subsystems[i].suites[j].fn(argc - 1,
231 argv + 1, prefix);
Hitoshi Mitake629cc352009-11-05 09:31:34 +0900232 goto end;
233 }
234
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900235 if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")) {
Hitoshi Mitake629cc352009-11-05 09:31:34 +0900236 dump_suites(i);
237 goto end;
238 }
239
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900240 printf("Unknown suite:%s for %s\n", argv[1], argv[0]);
Hitoshi Mitake629cc352009-11-05 09:31:34 +0900241 status = 1;
242 goto end;
243 }
244
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900245 printf("Unknown subsystem:%s\n", argv[0]);
Hitoshi Mitake629cc352009-11-05 09:31:34 +0900246 status = 1;
247
248end:
249 return status;
250}