From dtc@scrooge.ee.swin.oz.au  Sun Feb  9 04:10:45 1997
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Date: Sun, 9 Feb 1997 23:12:35 +1100 (EST)
From: Douglas Thomas Crosher  <dtc@scrooge.ee.swin.oz.au>
To: FreeBSD-gnats-submit@freebsd.org
Subject: Possible getrusage time slip?

>Number:         2697
>Category:       kern
>Synopsis:       Possible getrusage time slip?
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:
>Keywords:
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Feb  9 04:20:01 PST 1997
>Closed-Date:    Sun Feb 9 10:37:24 PST 1997
>Last-Modified:  Sun Feb  9 19:50:01 PST 1997
>Originator:     Douglas
>Release:        FreeBSD 3.0-CURRENT i386
>Organization:
Swinburne University of Technology
>Environment:

	P133 64M FreeBSD current 8/2/97

>Description:

	Note sure if the behaviour of getrusage is correct, the times
reported often slip backwards?  Caused a profiler trouble.

>How-To-Repeat:

#include <stdio.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/resource.h>

main()
{
  for (;;) {
    struct rusage  rusage1, rusage2;
    int  time1,time2;
    
    getrusage(RUSAGE_SELF,&rusage1);
    time1 = rusage1.ru_utime.tv_sec * 1000000 + rusage1.ru_utime.tv_usec;
    getrusage(RUSAGE_SELF,&rusage2);
    time2 = rusage2.ru_utime.tv_sec * 1000000 + rusage2.ru_utime.tv_usec;
    
    if (time2<time1)
      fprintf(stderr," %x < %x\n", time2, time1);
  }
}

>Fix:
>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->closed 
State-Changed-By: mpp 
State-Changed-When: Sun Feb 9 10:37:24 PST 1997 
State-Changed-Why:  
Duplicate of PR# 975. 

From: Bruce Evans <bde@zeta.org.au>
To: dtc@scrooge.ee.swin.oz.au, FreeBSD-gnats-submit@freebsd.org
Cc:  Subject: Re: kern/2697: Possible getrusage time slip?
Date: Mon, 10 Feb 1997 14:35:41 +1100

 >	Note sure if the behaviour of getrusage is correct, the times
 >reported often slip backwards?  Caused a profiler trouble.
 
 The times sometimes goes backwards.  See PR975.
 
 Bruce
>Unformatted:
