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X-HELO: calimero.vinschen.de
Date: Tue, 3 Nov 2015 18:37:33 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Cygwin64 vs. Cygwin (speed)
Message-ID: <20151103173733.GB31094@calimero.vinschen.de>
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On Nov  3 07:59, Jim Reisert AD1C wrote:
> In another thread, I wrote (and Corinna replied):
>=20
> >> I have tried 64-bit Cygwin in the past.  I do a lot of file I/O and
> >> sorting/searching on largish test-based data sets, and 64-bit was
> >> noticeably slower than 32-bit Cygwin,
> >
> > Hmm, I usually have the opposite impression...
>=20
> I'm using malloc/calloc, is there a different memory allocator I
> should be using for Cygwin64?

There is none.  While Cygwin's malloc is slow in multi-threading
scenarios due to dumb locking (which I really hope to fix at one point),
it shouldn't be any slower on 64 bit compared to 32 bit.


Corinna

--=20
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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