Subject: Re: Why the partitioning should stay the same
To: Greg A. Woods <email@example.com>
From: Ted Lemon <firstname.lastname@example.org>
Date: 01/31/1995 11:15:47
> I do know you can easily measure the difference under the right
> circumstances. The principle is not much different than that of using
> raw disks for an RDBMS like Oracle, and anyone with a sufficiently large
> Oracle application can tell you that raw disk access is essential.
Database performance is a very different beast from swap performance.
One of the primary reasons for going to raw disks is so that you can
guarantee synchronization. Otherwise you have to use Unix-style
synchronization, which is comparitively expensive, and generally not a
good fit for a DBMS. Swap, on the other hand, requires no special
synchronization, so RDBMS performance requirements really don't apply.
Ted Lemon email@example.com
+1 415 477 5045
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