On Dec 12, 2007, at 1:26 PM, Markus Schiltknecht wrote:
> Josh Berkus wrote:
>> Sure. Imagine you have a 5TB database on a machine with 8 cores
>> and only one concurrent user. You'd like to have 1 core doing I/
>> O, and say 4-5 cores dividing the scan and join processing into
>> 4-5 chunks.
>
> Ah, right, thank for enlightenment. Heck, I'm definitely too
> focused on replication and distributed databases :-)
>
> However, there's certainly a great deal of an intersection between
> parallel processing on different machines and parallel processing
> on multiple CPUs - especially considering NUMA architecture. *comes-
> to-think-again*...
Except that doing something in-machine is often far simpler than
trying to go cross-machine, especially when that something is a
background reader.
Let's walk before we run. :)
--
Decibel!, aka Jim C. Nasby, Database Architect decibel@decibel.org
Give your computer some brain candy! www.distributed.net Team #1828
