Re: 64bits or 32 bits on ESX?

From: Vincenzo Romano <vincenzo(dot)romano(at)notorand(dot)it>
To: Bjørn T Johansen <btj(at)havleik(dot)no>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: 64bits or 32 bits on ESX?
Date: 2010-01-21 12:25:50
Message-ID: 3eff28921001210425l2f0f621dn450966b64a833daf@mail.gmail.com
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2010/1/21 Bjørn T Johansen <btj(at)havleik(dot)no>:

> I also thought that the fact the 64bit system can move more data in parallell would also make the system faster....

That's true ad the chip level (registers and cache).
Anything else depends on the surrounding hardware (design and implementation).
A 32bit system with a good SAS subsystem can outperform a 64bit one
with poor PATA disks.

--
Vincenzo Romano
NotOrAnd Information Technologies
NON QVIETIS MARIBVS NAVTA PERITVS

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