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Commit 629cc356 authored by Hitoshi Mitake's avatar Hitoshi Mitake Committed by Ingo Molnar
Browse files

perf bench: Add builtin-bench.c: General framework for benchmark suites 



This patch adds builtin-bench.c
builtin-bench.c is a general framework for benchmark suites.

Signed-off-by: default avatarHitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: fweisbec@gmail.com
Cc: Jiri Kosina <jkosina@suse.cz>
LKML-Reference: <1257381097-4743-5-git-send-email-mitake@dcl.info.waseda.ac.jp>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent c7d9300f

tools/perf/builtin-bench.c

0 → 100644
+128 −0
Original line number Diff line number Diff line 
/*

 *

 * 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;

}