0N/A/*
0N/A * CDDL HEADER START
0N/A *
0N/A * The contents of this file are subject to the terms
0N/A * of the Common Development and Distribution License
0N/A * (the "License"). You may not use this file except
0N/A * in compliance with the License.
0N/A *
0N/A * You can obtain a copy of the license at
0N/A * src/OPENSOLARIS.LICENSE
0N/A * or http://www.opensolaris.org/os/licensing.
0N/A * See the License for the specific language governing
0N/A * permissions and limitations under the License.
0N/A *
0N/A * When distributing Covered Code, include this CDDL
0N/A * HEADER in each file and include the License file at
0N/A * usr/src/OPENSOLARIS.LICENSE. If applicable,
0N/A * add the following below this CDDL HEADER, with the
0N/A * fields enclosed by brackets "[]" replaced with your
0N/A * own identifying information: Portions Copyright [yyyy]
0N/A * [name of copyright owner]
0N/A *
0N/A * CDDL HEADER END
0N/A */
0N/A
0N/A/*
0N/A * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
0N/A * Use is subject to license terms.
0N/A */
0N/A
0N/A/*
0N/A * benchmark fork
0N/A */
0N/A
0N/A#include <sys/types.h>
0N/A#include <sys/wait.h>
0N/A#include <unistd.h>
0N/A#include <stdlib.h>
0N/A#include <stdio.h>
0N/A
0N/A#include "libmicro.h"
0N/A
0N/Astatic barrier_t *b;
0N/A
0N/Atypedef struct {
0N/A int ts_once;
0N/A int *ts_pids;
0N/A} tsd_t;
0N/A
0N/Aint
0N/Abenchmark_init()
0N/A{
0N/A lm_tsdsize = sizeof (tsd_t);
0N/A (void) sprintf(lm_usage, "notes: measures fork()\n");
0N/A
0N/A return (0);
0N/A}
0N/A
0N/Aint
0N/Abenchmark_initrun()
0N/A{
0N/A b = barrier_create(lm_optP * lm_optT * (lm_optB + 1), 0);
0N/A
0N/A return (0);
0N/A}
0N/A
0N/Aint
0N/Abenchmark_finirun()
0N/A{
0N/A (void) barrier_destroy(b);
0N/A
0N/A return (0);
0N/A}
0N/A
0N/Aint
0N/Abenchmark_initbatch(void *tsd)
0N/A{
0N/A tsd_t *ts = (tsd_t *)tsd;
0N/A int errors = 0;
0N/A
0N/A if (ts->ts_once++ == 0) {
0N/A ts->ts_pids = (int *)malloc(lm_optB * sizeof (pid_t));
0N/A if (ts->ts_pids == NULL) {
0N/A errors++;
0N/A }
0N/A }
0N/A
0N/A return (errors);
0N/A}
0N/A
0N/Aint
0N/Abenchmark(void *tsd, result_t *res)
0N/A{
0N/A tsd_t *ts = (tsd_t *)tsd;
0N/A int i;
0N/A
0N/A for (i = 0; i < lm_optB; i++) {
0N/A ts->ts_pids[i] = fork();
0N/A switch (ts->ts_pids[i]) {
0N/A case 0:
0N/A (void) barrier_queue(b, NULL);
0N/A exit(0);
0N/A break;
0N/A case -1:
0N/A res->re_errors++;
0N/A break;
0N/A default:
0N/A continue;
0N/A }
0N/A }
0N/A res->re_count = lm_optB;
0N/A
0N/A (void) barrier_queue(b, NULL);
0N/A
0N/A return (0);
0N/A}
0N/A
0N/Aint
0N/Abenchmark_finibatch(void *tsd)
0N/A{
0N/A tsd_t *ts = (tsd_t *)tsd;
0N/A int i;
0N/A
0N/A for (i = 0; i < lm_optB; i++) {
0N/A if (ts->ts_pids[i] > 0) {
0N/A (void) waitpid(ts->ts_pids[i], NULL, 0);
0N/A }
0N/A }
0N/A
0N/A return (0);
0N/A}