Re: [GENERAL] disk performance benchmarks
Ron St-Pierre <rstpierre@syscor.com>
From: Ron St-Pierre <rstpierre@syscor.com>
To: "Jeffrey W. Baker" <jwbaker@acm.org>, pgsql-performance@postgresql.org
Date: 2004-09-15T17:55:21Z
Lists: pgsql-performance, pgsql-general
Jeffrey W. Baker wrote: >All these replies are really interesting, but the point is not that my >RAIDs are too slow, or that my CPUs are too slow. My point is that, for >long stretches of time, by database doesn't come anywhere near using the >capacity of the hardware. And I think that's odd and would like to >config it to "false". > > What motherboard are you using, and what distro? Earlier you mentioned that you're on linux 2.6.7 and a 64-bit Opteron 244 machine with 8GB main memory, two 4-disk RAID5 arrays (one for database, one for xlogs). Also, did you have a chance to test performance before you implemented RAID? Ron