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From Zsolt Koppany <zkoppanyl...@intland.com>
Subject RE: Very bad performance when I redirect the output of a command
Date Mon, 25 Aug 2003 19:43:44 GMT
Dominique,

that was, with 1.6 I don't have the problem any more.

Thank you!

Zsolt


On Mon, 2003-08-25 at 17:00, Dominique Devienne wrote:
> Zsolt, could you try with Ant CVS HEAD?
> 
> Conor indicated that he removed there a 5 or 6ms pause in between each 128
> bytes read in StreamPumper, which could explain such poor performance. 
> 
> Morten's problem might be something else...
> 
> Anyways, please give CVS HEAD a try, and report what you find. Thanks, --DD
> 
> > -----Original Message-----
> > From: Morten Mortensen [mailto:morten.mortensen@tietoenator.com]
> > Sent: Monday, August 25, 2003 4:33 AM
> > To: 'Ant Users List'
> > Subject: RE: Very bad performance when I redirect the output of a command
> > 
> > 
> > Hi all,
> > 
> > ..You mean "output", not "outfile"? Am I missing something?
> > 
> > I experience *other* kind-of-related problems with the "exec" task and the
> > "output"-attribute - it very much appears as if the output does not get
> > flushed properly. This is with 1.5.3, 1.6 (and JDK 1.4.1 and 1.4.2 on
> > Windows). In some specific setups of mine, I always get the first ~6 kb
> > output only.
> > 
> > The "exec" task has some kind of a flaw in it, I believe.
> > 
> > Regards,
> >   Morten Sabroe Mortensen
> > 
> > 
> > -----Original Message-----
> > From: Jan.Materne@rzf.fin-nrw.de [mailto:Jan.Materne@rzf.fin-nrw.de]
> > Sent: 25. august 2003 10:24
> > To: user@ant.apache.org
> > Subject: RE: Very bad performance when I redirect the output of a
> > command
> > 
> > 
> > Can you try the same but without redirect?
> >    <exec command="cvs log -l ${package}" />
> > 
> > So we know where the break is
> > - using the Redirector
> > - doing the exec
> > - outside of Ant
> > 
> > 
> > Jan
> > 
> > 
> > > -----Original Message-----
> > > From: Zsolt Koppany [mailto:zkoppanylist@intland.com]
> > > Sent: Monday, August 25, 2003 8:10 AM
> > > To: user@ant.apache.org
> > > Subject: Very bad performance when I redirect the output of a command
> > >
> > >
> > > Hi,
> > >
> > > from an "ant" script when I execute a command with redirected
> > > output it
> > > takes 9 sec. to execute a command what I can execute in 0.1 sec (10
> > > times faster) from the console. I have even time to see how
> > > the size of
> > > the output file increases with repeated "ls -l filename" in an other
> > > window.  What is the reason? How can I fix that?
> > >
> > > I use ant-1.5.4 with jdk1.4.1_04 Sun on Redhat-9.
> > >
> > > Example:
> > > <exec command="cvs log -l ${package}" outfile="${outputfile}" />
> > >
> > > First I tried the <cvs command="log" ... and that does have the same
> > > problem.
> > >
> > > Zsolt
> 
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