From: "C. J." <dusk47@hotmail.com>
To: cygwin@cygwin.com
Subject: Re: 1.3.10 memcmp() bug
Date: Wed, 24 Apr 2002 13:31:00 -0000 [thread overview]
Message-ID: <F177N4CxpAOAkK5LqN300007454@hotmail.com> (raw)
> > I wasnt sure wheter I should post about this on gcc bug report list or
> > here. Anyways, it seems that using -O2 flag with gcc causes huge
>slowdown
> > in memcmp(). However i dont see performance drop under linux, so I
>suppose
> > it is cygwin issue.
cygwin's gcc version may be using an outdated x86 'optimization' for memcmp.
VC++ has a similar problem, see this:
http://groups.google.com/groups?hl=en&threadm=ucZKhyE3BHA.1464%40tkmsftngp02&rnum=3&prev=/groups%3Fq%3Drep%2Bgroup:microsoft.public.dotnet.languages.vc%26hl%3Den%26selm%3DucZKhyE3BHA.1464%2540tkmsftngp02%26rnum%3D3
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next reply other threads:[~2002-04-24 19:30 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-04-24 13:31 C. J. [this message]
2002-04-24 23:44 ` HELP! Dave Trollope
-- strict thread matches above, loose matches on Subject: below --
2002-04-25 3:18 1.3.10 memcmp() bug Gareth Pearce
2002-04-25 7:40 ` Tim Prince
2002-04-23 22:21 Sami Korhonen
2002-04-24 0:06 ` Tim Prince
2002-04-24 0:21 ` Sami Korhonen
2002-04-24 21:37 ` Tim Prince
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