On Sat, Jul 16, 2005 at 01:12:27AM -0700, Jeffrey W. Baker wrote:
Another frequent suggestion is to put the xlog on a separate device. I
tried this, and, for a given number of disks, it appears to be
counter-productive. A RAID5 of 5 disks holding both logs and data is
about 15% faster than a RA
In our last installment, we saw that JFS provides higher pgbench
performance than either XFS or ext3. Using a direct-I/O patch stolen
from 8.1, JFS achieved 105 tps with 100 clients.
To refresh, the machine in question has 5 7200RPM SATA disks, an Areca
RAID controller with 128MB cache, and 1GB o
