Обсуждение: Windows 64 bit

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Windows 64 bit

От
"Campbell, Lance"
Дата:

I noticed that there is not a 64 bit windows version of postgres binaries.  When will the 64 bit version be available?

 

Thanks,

 

Lance Campbell

Project Manager/Software Architect

Web Services at Public Affairs

University of Illinois

217.333.0382

http://webservices.uiuc.edu

 

Re: Windows 64 bit

От
"Campbell, Lance"
Дата:

I just read the following article:

 

http://people.planetpostgresql.org/mha/index.php?/archives/162-PostgreSQL-vs-64-bit-windows.html

 

Would there be benefits in running PostgreSQL in a 32 bit mode on a 64 bit version of XP?   My thought is that the OS could access more of the memory for the caching of the files.  I come to this understanding because on my production Linux box, I don’t allocate more than a 2 Gig to PostgreSQL.  I leave the rest of the memory available for the caching of disk files.  So even though PostgreSQL would be running in a 32 bit mode it seems like it would still run better on a 64 bit XP box compared to a 32 bit version.  This of course assumes that one does have a sizeable database.

 

Is this a correct assumption?

 

Thanks,

 

Lance Campbell

Project Manager/Software Architect

Web Services at Public Affairs

University of Illinois

217.333.0382

http://webservices.uiuc.edu

 

From: pgsql-admin-owner@postgresql.org [mailto:pgsql-admin-owner@postgresql.org] On Behalf Of Campbell, Lance
Sent: Wednesday, March 19, 2008 11:58 AM
To: posgres support
Subject: [ADMIN] Windows 64 bit

 

I noticed that there is not a 64 bit windows version of postgres binaries.  When will the 64 bit version be available?

 

Thanks,

 

Lance Campbell

Project Manager/Software Architect

Web Services at Public Affairs

University of Illinois

217.333.0382

http://webservices.uiuc.edu

 

Re: Windows 64 bit

От
Michael Monnerie
Дата:
On Mittwoch, 19. März 2008 Campbell, Lance wrote:
> Would there be benefits in running PostgreSQL in a 32 bit mode on a
> 64 bit version of XP?   My thought is that the OS could access more
> of the memory for the caching of the files.  I come to this
> understanding because on my production Linux box, I don't allocate
> more than a 2 Gig to PostgreSQL.  I leave the rest of the memory
> available for the caching of disk files.  So even though PostgreSQL
> would be running in a 32 bit mode it seems like it would still run
> better on a 64 bit XP box compared to a 32 bit version.  This of
> course assumes that one does have a sizeable database.

If memory is not the problem (db < 2GB), then it depends on your
hardware if your specific application is faster with 32 or 64 bit.
Handling big data structures that are 64bit aligned on a 64 bit
optimized hardware can be slower on a 32bit postgresql, while a
database with "small int" only values might actually be faster on a
32bit db, because of more efficient caching.

Example: We run dbmail (http://www.dbmail.org), a postgresql based
e-mail server, with a several GB DB, storing e-mails, which is quite
big data in DB terms. 64bit is more efficient here.

mfg zmi
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