108 lines
2.8 KiB
C
108 lines
2.8 KiB
C
/*******************************************************************************
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* The BYTE UNIX Benchmarks - Release 3
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* Module: syscall.c SID: 3.3 5/15/91 19:30:21
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*
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*******************************************************************************
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* Bug reports, patches, comments, suggestions should be sent to:
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*
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* Ben Smith, Rick Grehan or Tom Yager at BYTE Magazine
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* ben@bytepb.byte.com rick_g@bytepb.byte.com tyager@bytepb.byte.com
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*
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*******************************************************************************
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* Modification Log:
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* $Header: syscall.c,v 3.4 87/06/22 14:32:54 kjmcdonell Beta $
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* August 29, 1990 - Modified timing routines
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* October 22, 1997 - code cleanup to remove ANSI C compiler warnings
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* Andy Kahn <kahn@zk3.dec.com>
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*
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******************************************************************************/
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/*
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* syscall -- sit in a loop calling the system
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*
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*/
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char SCCSid[] = "@(#) @(#)syscall.c:3.3 -- 5/15/91 19:30:21";
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include "timeit.c"
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unsigned long iter;
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void report(int sig)
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{
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fprintf(stderr,"COUNT|%ld|1|lps\n", iter);
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exit(0);
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}
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int main(int argc, char *argv[])
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{
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char *test;
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int duration;
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if (argc < 2) {
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fprintf(stderr,"Usage: %s duration [ test ]\n", argv[0]);
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fprintf(stderr,"test is one of:\n");
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fprintf(stderr," \"mix\" (default), \"close\", \"getpid\", \"exec\"\n");
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exit(1);
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}
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if (argc > 2)
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test = argv[2];
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else
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test = "mix";
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duration = atoi(argv[1]);
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iter = 0;
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wake_me(duration, report);
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switch (test[0]) {
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case 'm':
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while (1) {
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close(dup(0));
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getpid();
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getuid();
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umask(022);
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iter++;
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}
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/* NOTREACHED */
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case 'c':
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while (1) {
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close(dup(0));
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iter++;
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}
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/* NOTREACHED */
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case 'g':
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while (1) {
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getpid();
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iter++;
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}
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/* NOTREACHED */
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case 'e':
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while (1) {
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pid_t pid = fork();
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if (pid < 0) {
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fprintf(stderr,"%s: fork failed\n", argv[0]);
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exit(1);
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} else if (pid == 0) {
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execl("/usr/bin/true", (char *) 0);
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fprintf(stderr,"%s: exec /usr/bin/true failed\n", argv[0]);
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exit(1);
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} else {
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if (waitpid(pid, NULL, 0) < 0) {
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fprintf(stderr,"%s: waitpid failed\n", argv[0]);
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exit(1);
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}
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}
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iter++;
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}
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/* NOTREACHED */
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}
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exit(9);
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}
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