better performance with 32 bit ! why?

Lightner, Jeff JLightner at
Wed Jun 29 17:58:48 UTC 2011

I'm not sure I agree with that - multiple single threaded processes can
be distributed across cores/CPUs.   That is to say ONE single thread
process doesn't gain from multiple cores but more than one can because
they don't have to compete against each other on the same core.

-----Original Message-----
From: at
[ at] On Behalf
Of Ryan Novosielski
Sent: Wednesday, June 29, 2011 9:59 AM
To: iharrathi.ext at
Cc: bind-users at
Subject: Re: better performance with 32 bit ! why?

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Not necessarily. They are not apples to apples. Multi-core machines only
excel at multi-threaded computational loads. I don't know how BIND does
or does not qualify. I suspect, however, there may be some other
differences between the two chips anyhow (cache size differences, etc.).

On 06/29/2011 09:33 AM, iharrathi.ext at wrote:
> on server1(64 bit) i have 2 Intel E5310 *quad*-core 1.6Ghz and on
> server2(32 bit) i have 2 Intel Xeon *dual*-core 2.33Ghz.
> means 8*1.6 Ghz on server1 and 4*2.33 on server2.
> 8*1.6 is better and faster than 4*2.33, no?
> // 
> /Regards /
> /Issam Harrathi./
>>/ The 64 bit server(server1) is faster than the 32 bit server
> /
> Really? I thought you said the 64 bit server had a CPU with 1.6GHz
> and the 32 bit server had 2.33GHz cores?
> Regards
> Eivind Olsen
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