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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 */
36#define suite_all { "all", "test all suite (pseudo suite)", 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 },
Hitoshi Mitake20442792009-12-13 17:01:59 +090055 suite_all,
Hitoshi Mitake827f3b42009-11-18 00:20:09 +090056 { NULL,
57 NULL,
58 NULL }
59};
60
Hitoshi Mitake629cc352009-11-05 09:31:34 +090061struct bench_subsys {
62 const char *name;
63 const char *summary;
64 struct bench_suite *suites;
65};
66
67static struct bench_subsys subsystems[] = {
68 { "sched",
69 "scheduler and IPC mechanism",
70 sched_suites },
Hitoshi Mitake827f3b42009-11-18 00:20:09 +090071 { "mem",
72 "memory access performance",
73 mem_suites },
Hitoshi Mitake20442792009-12-13 17:01:59 +090074 { "all", /* sentinel: easy for help */
75 "test all subsystem (pseudo subsystem)",
76 NULL },
Hitoshi Mitake629cc352009-11-05 09:31:34 +090077 { NULL,
78 NULL,
Hitoshi Mitake827f3b42009-11-18 00:20:09 +090079 NULL }
Hitoshi Mitake629cc352009-11-05 09:31:34 +090080};
81
82static void dump_suites(int subsys_index)
83{
84 int i;
85
Hitoshi Mitake20442792009-12-13 17:01:59 +090086 printf("# List of available suites for %s...\n\n",
Hitoshi Mitake629cc352009-11-05 09:31:34 +090087 subsystems[subsys_index].name);
88
89 for (i = 0; subsystems[subsys_index].suites[i].name; i++)
Hitoshi Mitake20442792009-12-13 17:01:59 +090090 printf("%14s: %s\n",
Hitoshi Mitake629cc352009-11-05 09:31:34 +090091 subsystems[subsys_index].suites[i].name,
92 subsystems[subsys_index].suites[i].summary);
93
94 printf("\n");
95 return;
96}
97
Arnaldo Carvalho de Meloedb7c602010-05-17 16:22:41 -030098static const char *bench_format_str;
Hitoshi Mitake386d7e92009-11-10 08:20:00 +090099int bench_format = BENCH_FORMAT_DEFAULT;
100
101static const struct option bench_options[] = {
102 OPT_STRING('f', "format", &bench_format_str, "default",
103 "Specify format style"),
104 OPT_END()
105};
106
107static const char * const bench_usage[] = {
108 "perf bench [<common options>] <subsystem> <suite> [<options>]",
109 NULL
110};
111
112static void print_usage(void)
113{
114 int i;
115
116 printf("Usage: \n");
117 for (i = 0; bench_usage[i]; i++)
118 printf("\t%s\n", bench_usage[i]);
119 printf("\n");
120
Hitoshi Mitake20442792009-12-13 17:01:59 +0900121 printf("# List of available subsystems...\n\n");
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900122
123 for (i = 0; subsystems[i].name; i++)
Hitoshi Mitake20442792009-12-13 17:01:59 +0900124 printf("%14s: %s\n",
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900125 subsystems[i].name, subsystems[i].summary);
126 printf("\n");
127}
128
Arnaldo Carvalho de Meloedb7c602010-05-17 16:22:41 -0300129static int bench_str2int(const char *str)
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900130{
131 if (!str)
132 return BENCH_FORMAT_DEFAULT;
133
134 if (!strcmp(str, BENCH_FORMAT_DEFAULT_STR))
135 return BENCH_FORMAT_DEFAULT;
136 else if (!strcmp(str, BENCH_FORMAT_SIMPLE_STR))
137 return BENCH_FORMAT_SIMPLE;
138
139 return BENCH_FORMAT_UNKNOWN;
140}
141
Hitoshi Mitake20442792009-12-13 17:01:59 +0900142static void all_suite(struct bench_subsys *subsys) /* FROM HERE */
143{
144 int i;
145 const char *argv[2];
146 struct bench_suite *suites = subsys->suites;
147
148 argv[1] = NULL;
149 /*
150 * TODO:
151 * preparing preset parameters for
152 * embedded, ordinary PC, HPC, etc...
153 * will be helpful
154 */
155 for (i = 0; suites[i].fn; i++) {
156 printf("# Running %s/%s benchmark...\n",
157 subsys->name,
158 suites[i].name);
159
160 argv[1] = suites[i].name;
161 suites[i].fn(1, argv, NULL);
162 printf("\n");
163 }
164}
165
166static void all_subsystem(void)
167{
168 int i;
169 for (i = 0; subsystems[i].suites; i++)
170 all_suite(&subsystems[i]);
171}
172
Hitoshi Mitake629cc352009-11-05 09:31:34 +0900173int cmd_bench(int argc, const char **argv, const char *prefix __used)
174{
175 int i, j, status = 0;
176
177 if (argc < 2) {
178 /* No subsystem specified. */
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900179 print_usage();
180 goto end;
181 }
Hitoshi Mitake629cc352009-11-05 09:31:34 +0900182
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900183 argc = parse_options(argc, argv, bench_options, bench_usage,
184 PARSE_OPT_STOP_AT_NON_OPTION);
Hitoshi Mitake629cc352009-11-05 09:31:34 +0900185
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900186 bench_format = bench_str2int(bench_format_str);
187 if (bench_format == BENCH_FORMAT_UNKNOWN) {
188 printf("Unknown format descriptor:%s\n", bench_format_str);
189 goto end;
190 }
191
192 if (argc < 1) {
193 print_usage();
Hitoshi Mitake629cc352009-11-05 09:31:34 +0900194 goto end;
195 }
196
Hitoshi Mitake20442792009-12-13 17:01:59 +0900197 if (!strcmp(argv[0], "all")) {
198 all_subsystem();
199 goto end;
200 }
201
Hitoshi Mitake629cc352009-11-05 09:31:34 +0900202 for (i = 0; subsystems[i].name; i++) {
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900203 if (strcmp(subsystems[i].name, argv[0]))
Hitoshi Mitake629cc352009-11-05 09:31:34 +0900204 continue;
205
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900206 if (argc < 2) {
Hitoshi Mitake629cc352009-11-05 09:31:34 +0900207 /* No suite specified. */
208 dump_suites(i);
209 goto end;
210 }
211
Hitoshi Mitake20442792009-12-13 17:01:59 +0900212 if (!strcmp(argv[1], "all")) {
213 all_suite(&subsystems[i]);
214 goto end;
215 }
216
Hitoshi Mitake629cc352009-11-05 09:31:34 +0900217 for (j = 0; subsystems[i].suites[j].name; j++) {
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900218 if (strcmp(subsystems[i].suites[j].name, argv[1]))
Hitoshi Mitake629cc352009-11-05 09:31:34 +0900219 continue;
220
Hitoshi Mitake79e295d2009-11-11 00:04:00 +0900221 if (bench_format == BENCH_FORMAT_DEFAULT)
222 printf("# Running %s/%s benchmark...\n",
223 subsystems[i].name,
224 subsystems[i].suites[j].name);
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900225 status = subsystems[i].suites[j].fn(argc - 1,
226 argv + 1, prefix);
Hitoshi Mitake629cc352009-11-05 09:31:34 +0900227 goto end;
228 }
229
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900230 if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")) {
Hitoshi Mitake629cc352009-11-05 09:31:34 +0900231 dump_suites(i);
232 goto end;
233 }
234
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900235 printf("Unknown suite:%s for %s\n", argv[1], argv[0]);
Hitoshi Mitake629cc352009-11-05 09:31:34 +0900236 status = 1;
237 goto end;
238 }
239
Hitoshi Mitake386d7e92009-11-10 08:20:00 +0900240 printf("Unknown subsystem:%s\n", argv[0]);
Hitoshi Mitake629cc352009-11-05 09:31:34 +0900241 status = 1;
242
243end:
244 return status;
245}