* Cygwin64 vs. Cygwin (speed)
@ 2015-11-03 15:00 Jim Reisert AD1C
2015-11-03 17:37 ` Corinna Vinschen
0 siblings, 1 reply; 2+ messages in thread
From: Jim Reisert AD1C @ 2015-11-03 15:00 UTC (permalink / raw)
To: cygwin
In another thread, I wrote (and Corinna replied):
>> 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...
I'm using malloc/calloc, is there a different memory allocator I
should be using for Cygwin64?
Thanks - Jim
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Jim Reisert AD1C, <jjreisert@alum.mit.edu>, http://www.ad1c.us
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* Re: Cygwin64 vs. Cygwin (speed)
2015-11-03 15:00 Cygwin64 vs. Cygwin (speed) Jim Reisert AD1C
@ 2015-11-03 17:37 ` Corinna Vinschen
0 siblings, 0 replies; 2+ messages in thread
From: Corinna Vinschen @ 2015-11-03 17:37 UTC (permalink / raw)
To: cygwin
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On Nov 3 07:59, Jim Reisert AD1C wrote:
> In another thread, I wrote (and Corinna replied):
>
> >> 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...
>
> 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
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Maintainer cygwin AT cygwin DOT com
Red Hat
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2015-11-03 15:00 Cygwin64 vs. Cygwin (speed) Jim Reisert AD1C
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