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Message-ID: <CCD084B0E779D411A70300508B662226018387A1@exchukahis02.experian.co.uk>
From: "Morrison, John" <John DOT Morrison AT uk DOT experian DOT com>
To: "'cygwin AT cygwin DOT com'" <cygwin AT cygwin DOT com>
Subject: RE: Timing problem
Date: Fri, 6 Jul 2001 09:58:22 +0100 
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Superb!

Thank you very much.

J.

> -----Original Message-----
> From: Robert Collins [mailto:robert DOT collins AT itdomain DOT com DOT au]
> Sent: Friday, 06 July 2001 09:45
> To: Morrison, John; cygwin AT cygwin DOT com
> Subject: RE: Timing problem
> 
> 
> 
> > -----Original Message-----
> > From: Morrison, John [mailto:John DOT Morrison AT uk DOT experian DOT com]
> > Sent: Friday, July 06, 2001 6:37 PM
> > To: 'cygwin AT cygwin DOT com'
> > Subject: RE: Timing problem
> > 
> > 
> > Nope:
> > 
> > w
> > 
> > real    0m0.422s
> > user    0m0.062s
> > sys     0m0.077s
> > 
> > What made you think of the brackets?  I think that the ls is 
> > being piped
> > into grep.
> > 
> 
> My previous test cases
> 
> $ time echo | less
> 
> 
> real    0m3.796s
> user    0m0.080s
> sys     0m0.080s
> 
> note the two lines under the prompt. You can't see it here, but less
> paused with (END) _before_ the real user and sys values came up.
> 
> $ (time echo) | less
> 
> real    0m0.000s
> user    0m0.000s
> sys     0m0.000s
> 
> Note the single line after the prompt, and the 0 time length :].  That
> gave me the conclusion that your first problem was that time 
> was timing
> the egrep as well as the command. Trying with ls as you 
> indicated gives
> me the time output to console still... but it times the ls as 
> opposed to
> the less.
> 
> Try three: with a little persistence:
> 
> $ (time ls > /dev/null) 2>&1 | egrep '^real'
> real    0m0.241s
> 
> Rob
> 


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