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Re: Hardware suggestions for Linux/PGSQL server

From: Jeff Bohmer <bohmer(at)visionlink(dot)org>
To: pgsql-performance(at)postgresql(dot)org
Subject: Re: Hardware suggestions for Linux/PGSQL server
Date: 2003-12-13 23:00:32
Message-ID: p04330100bbffb1769b41@[192.168.1.201] (view raw, whole thread or download thread mbox)
Thread:
Lists: pgsql-performance
>Shridhar Daithankar wrote:
>>
>>FWIW, there are only two pieces of software that need 64bit aware 
>>for a typical server job. Kernel and glibc. Rest of the apps can do 
>>fine as 32 bits unless you are oracle and insist on outsmarting OS.
>>
>>In fact running 32 bit apps on 64 bit OS has plenty of advantages 
>>like effectively using the cache. Unless you need 64bit, going for 
>>64bit software is not advised.
>
>This is a good point. While doing research on this matter a few 
>months back, I saw comments by people testing 64-bit MySQL that some 
>operations would run faster and some slower due to the use of 64-bit 
>datatypes versus 32-bit. The best solution in the end is probably to 
>run 32-bit Postgres under a 64-bit kernel -- unless your DB tends to 
>have a lot of 64-bit datatypes.


Thanks Shridhar and William,

This advice has been very helpful.  I would imagine a lot of folks 
are, or will soon be looking at 32- vs. 64-bit just for memory 
reasons and not 64-bit apps.

- Jeff
-- 

Jeff Bohmer
VisionLink, Inc.
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www.visionlink.org
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