67 lines
1.7 KiB
C
67 lines
1.7 KiB
C
|
/*******************************************************************************
|
||
|
|
* The BYTE UNIX Benchmarks - Release 3
|
||
|
|
* Module: pipe.c SID: 3.3 5/15/91 19:30:20
|
||
|
|
*
|
||
|
|
*******************************************************************************
|
||
|
|
* Bug reports, patches, comments, suggestions should be sent to:
|
||
|
|
*
|
||
|
|
* Ben Smith, Rick Grehan or Tom Yager
|
||
|
|
* ben@bytepb.byte.com rick_g@bytepb.byte.com tyager@bytepb.byte.com
|
||
|
|
*
|
||
|
|
*******************************************************************************
|
||
|
|
* Modification Log:
|
||
|
|
* $Header: pipe.c,v 3.5 87/06/22 14:32:36 kjmcdonell Beta $
|
||
|
|
* August 29, 1990 - modified timing routines (ty)
|
||
|
|
* October 22, 1997 - code cleanup to remove ANSI C compiler warnings
|
||
|
|
* Andy Kahn <kahn@zk3.dec.com>
|
||
|
|
*
|
||
|
|
******************************************************************************/
|
||
|
|
char SCCSid[] = "@(#) @(#)pipe.c:3.3 -- 5/15/91 19:30:20";
|
||
|
|
/*
|
||
|
|
* pipe -- test single process pipe throughput (no context switching)
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <errno.h>
|
||
|
|
#include "timeit.c"
|
||
|
|
|
||
|
|
unsigned long iter;
|
||
|
|
|
||
|
|
void report(int sig)
|
||
|
|
{
|
||
|
|
fprintf(stderr,"COUNT|%ld|1|lps\n", iter);
|
||
|
|
exit(0);
|
||
|
|
}
|
||
|
|
|
||
|
|
int main(int argc, char *argv[])
|
||
|
|
{
|
||
|
|
char buf[512];
|
||
|
|
int pvec[2], duration;
|
||
|
|
|
||
|
|
if (argc != 2) {
|
||
|
|
fprintf(stderr,"Usage: %s duration\n", argv[0]);
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
duration = atoi(argv[1]);
|
||
|
|
|
||
|
|
pipe(pvec);
|
||
|
|
|
||
|
|
wake_me(duration, report);
|
||
|
|
iter = 0;
|
||
|
|
|
||
|
|
while (1) {
|
||
|
|
if (write(pvec[1], buf, sizeof(buf)) != sizeof(buf)) {
|
||
|
|
if ((errno != EINTR) && (errno != 0))
|
||
|
|
fprintf(stderr,"write failed, error %d\n", errno);
|
||
|
|
}
|
||
|
|
if (read(pvec[0], buf, sizeof(buf)) != sizeof(buf)) {
|
||
|
|
if ((errno != EINTR) && (errno != 0))
|
||
|
|
fprintf(stderr,"read failed, error %d\n", errno);
|
||
|
|
}
|
||
|
|
iter++;
|
||
|
|
}
|
||
|
|
}
|