5 * General benchmarking subsystem provided by perf
7 * Copyright (C) 2009, Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
13 * Available subsystem list:
14 * sched ... scheduler and IPC mechanism
15 * mem ... memory access performance
20 #include "util/util.h"
21 #include "util/parse-options.h"
23 #include "bench/bench.h"
32 int (*fn)(int, const char **, const char *);
35 /* sentinel: easy for help */
36 #define suite_all { "all", "Test all benchmark suites", NULL }
38 static struct bench_suite sched_suites[] = {
40 "Benchmark for scheduler and IPC mechanisms",
41 bench_sched_messaging },
43 "Flood of communication over pipe() between two processes",
51 static struct bench_suite mem_suites[] = {
53 "Simple memory copy in various ways",
56 "Simple memory set in various ways",
67 struct bench_suite *suites;
70 static struct bench_subsys subsystems[] = {
72 "scheduler and IPC mechanism",
75 "memory access performance",
77 { "all", /* sentinel: easy for help */
78 "all benchmark subsystem",
85 static void dump_suites(int subsys_index)
89 printf("# List of available suites for %s...\n\n",
90 subsystems[subsys_index].name);
92 for (i = 0; subsystems[subsys_index].suites[i].name; i++)
94 subsystems[subsys_index].suites[i].name,
95 subsystems[subsys_index].suites[i].summary);
101 static const char *bench_format_str;
102 int bench_format = BENCH_FORMAT_DEFAULT;
104 static const struct option bench_options[] = {
105 OPT_STRING('f', "format", &bench_format_str, "default",
106 "Specify format style"),
110 static const char * const bench_usage[] = {
111 "perf bench [<common options>] <subsystem> <suite> [<options>]",
115 static void print_usage(void)
120 for (i = 0; bench_usage[i]; i++)
121 printf("\t%s\n", bench_usage[i]);
124 printf("# List of available subsystems...\n\n");
126 for (i = 0; subsystems[i].name; i++)
128 subsystems[i].name, subsystems[i].summary);
132 static int bench_str2int(const char *str)
135 return BENCH_FORMAT_DEFAULT;
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;
142 return BENCH_FORMAT_UNKNOWN;
145 static void all_suite(struct bench_subsys *subsys) /* FROM HERE */
149 struct bench_suite *suites = subsys->suites;
154 * preparing preset parameters for
155 * embedded, ordinary PC, HPC, etc...
158 for (i = 0; suites[i].fn; i++) {
159 printf("# Running %s/%s benchmark...\n",
163 argv[1] = suites[i].name;
164 suites[i].fn(1, argv, NULL);
169 static void all_subsystem(void)
172 for (i = 0; subsystems[i].suites; i++)
173 all_suite(&subsystems[i]);
176 int cmd_bench(int argc, const char **argv, const char *prefix __maybe_unused)
178 int i, j, status = 0;
181 /* No subsystem specified. */
186 argc = parse_options(argc, argv, bench_options, bench_usage,
187 PARSE_OPT_STOP_AT_NON_OPTION);
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);
200 if (!strcmp(argv[0], "all")) {
205 for (i = 0; subsystems[i].name; i++) {
206 if (strcmp(subsystems[i].name, argv[0]))
210 /* No suite specified. */
215 if (!strcmp(argv[1], "all")) {
216 all_suite(&subsystems[i]);
220 for (j = 0; subsystems[i].suites[j].name; j++) {
221 if (strcmp(subsystems[i].suites[j].name, argv[1]))
224 if (bench_format == BENCH_FORMAT_DEFAULT)
225 printf("# Running %s/%s benchmark...\n",
227 subsystems[i].suites[j].name);
228 status = subsystems[i].suites[j].fn(argc - 1,
233 if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")) {
238 printf("Unknown suite:%s for %s\n", argv[1], argv[0]);
243 printf("Unknown subsystem:%s\n", argv[0]);