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Mail Archives: cygwin/2005/05/28/16:51:06

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Date: Sat, 28 May 2005 22:51:01 +0200 (CEST)
From: Vaclav Haisman <V DOT Haisman AT sh DOT cvut DOT cz>
To: "Gerrit P. Haase" <gerrit AT familiehaase DOT de>
Cc: Andy Ross <andy AT plausible DOT org>, cygwin AT cygwin DOT com
Subject: Re: Serious performance problems (malloc related?)
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Message-ID: <20050528225007.U63183@logout.sh.cvut.cz>
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On Sat, 28 May 2005, Gerrit P. Haase wrote:

> Andy Ross wrote:
> > But as I noted in my original post: It's not waiting on the disk
> > reads.  Comment out the split() call and watch the delays disappear.
> > Raw I/O speed in cygwin is comparable to mingw or MSVC.  The overhead
> > is due, somehow, to activity within/under split().  Other than
> > allocation, that function doesn't do any meaningful library
> > interaction that I can see (although Vaclav's suggestion about
> > exception handling is a very good one...).
>
> Can you port the testcase you provided to C to see if it makes a
> difference, please?

Or maybe at least try -fno-exceptions...


VH


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