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 static struct bench_suite sched_suites[] = {
37 "Benchmark for scheduler and IPC mechanisms",
38 bench_sched_messaging },
40 "Flood of communication over pipe() between two processes",
47 static struct bench_suite mem_suites[] = {
49 "Simple memory copy in various ways",
59 struct bench_suite *suites;
62 static struct bench_subsys subsystems[] = {
64 "scheduler and IPC mechanism",
67 "memory access performance",
74 static void dump_suites(int subsys_index)
78 printf("List of available suites for %s...\n\n",
79 subsystems[subsys_index].name);
81 for (i = 0; subsystems[subsys_index].suites[i].name; i++)
83 subsystems[subsys_index].suites[i].name,
84 subsystems[subsys_index].suites[i].summary);
90 static char *bench_format_str;
91 int bench_format = BENCH_FORMAT_DEFAULT;
93 static const struct option bench_options[] = {
94 OPT_STRING('f', "format", &bench_format_str, "default",
95 "Specify format style"),
99 static const char * const bench_usage[] = {
100 "perf bench [<common options>] <subsystem> <suite> [<options>]",
104 static void print_usage(void)
109 for (i = 0; bench_usage[i]; i++)
110 printf("\t%s\n", bench_usage[i]);
113 printf("List of available subsystems...\n\n");
115 for (i = 0; subsystems[i].name; i++)
117 subsystems[i].name, subsystems[i].summary);
121 static int bench_str2int(char *str)
124 return BENCH_FORMAT_DEFAULT;
126 if (!strcmp(str, BENCH_FORMAT_DEFAULT_STR))
127 return BENCH_FORMAT_DEFAULT;
128 else if (!strcmp(str, BENCH_FORMAT_SIMPLE_STR))
129 return BENCH_FORMAT_SIMPLE;
131 return BENCH_FORMAT_UNKNOWN;
134 int cmd_bench(int argc, const char **argv, const char *prefix __used)
136 int i, j, status = 0;
139 /* No subsystem specified. */
144 argc = parse_options(argc, argv, bench_options, bench_usage,
145 PARSE_OPT_STOP_AT_NON_OPTION);
147 bench_format = bench_str2int(bench_format_str);
148 if (bench_format == BENCH_FORMAT_UNKNOWN) {
149 printf("Unknown format descriptor:%s\n", bench_format_str);
158 for (i = 0; subsystems[i].name; i++) {
159 if (strcmp(subsystems[i].name, argv[0]))
163 /* No suite specified. */
168 for (j = 0; subsystems[i].suites[j].name; j++) {
169 if (strcmp(subsystems[i].suites[j].name, argv[1]))
172 if (bench_format == BENCH_FORMAT_DEFAULT)
173 printf("# Running %s/%s benchmark...\n",
175 subsystems[i].suites[j].name);
176 status = subsystems[i].suites[j].fn(argc - 1,
181 if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")) {
186 printf("Unknown suite:%s for %s\n", argv[1], argv[0]);
191 printf("Unknown subsystem:%s\n", argv[0]);