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/*
*
* builtin-bench.c
*
* General benchmarking subsystem provided by perf
*
* Copyright (C) 2009, Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
*
*/
/*
*
* Available subsystem list:
* sched ... scheduler and IPC mechanism
*
*/
#include "perf.h"
#include "util/util.h"
#include "util/parse-options.h"
#include "builtin.h"
#include "bench/bench.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
struct bench_suite {
const char *name;
const char *summary;
int (*fn)(int, const char **, const char *);
};
static struct bench_suite sched_suites[] = {
{ "messaging",
"Benchmark for scheduler and IPC mechanisms",
bench_sched_messaging },
{ "pipe",
"Flood of communication over pipe() between two processes",
bench_sched_pipe },
{ NULL,
NULL,
NULL }
};
struct bench_subsys {
const char *name;
const char *summary;
struct bench_suite *suites;
};
static struct bench_subsys subsystems[] = {
{ "sched",
"scheduler and IPC mechanism",
sched_suites },
{ NULL,
NULL,
NULL }
};
static void dump_suites(int subsys_index)
{
int i;
printf("List of available suites for %s...\n\n",
subsystems[subsys_index].name);
for (i = 0; subsystems[subsys_index].suites[i].name; i++)
printf("\t%s: %s\n",
subsystems[subsys_index].suites[i].name,
subsystems[subsys_index].suites[i].summary);
printf("\n");
return;
}
int cmd_bench(int argc, const char **argv, const char *prefix __used)
{
int i, j, status = 0;
if (argc < 2) {
/* No subsystem specified. */
printf("Usage: perf bench <subsystem> <suite> [<options>]\n\n");
printf("List of available subsystems...\n\n");
for (i = 0; subsystems[i].name; i++)
printf("\t%s: %s\n",
subsystems[i].name, subsystems[i].summary);
printf("\n");
goto end;
}
for (i = 0; subsystems[i].name; i++) {
if (strcmp(subsystems[i].name, argv[1]))
continue;
if (argc < 3) {
/* No suite specified. */
dump_suites(i);
goto end;
}
for (j = 0; subsystems[i].suites[j].name; j++) {
if (strcmp(subsystems[i].suites[j].name, argv[2]))
continue;
status = subsystems[i].suites[j].fn(argc - 2,
argv + 2, prefix);
goto end;
}
if (!strcmp(argv[2], "-h") || !strcmp(argv[2], "--help")) {
dump_suites(i);
goto end;
}
printf("Unknown suite:%s for %s\n", argv[2], argv[1]);
status = 1;
goto end;
}
printf("Unknown subsystem:%s\n", argv[1]);
status = 1;
end:
return status;
}
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