On Sat, Aug 20, 2005 at 12:52:08AM -0600, Dan Harris wrote:
>On Aug 19, 2005, at 12:55 AM, Jeffrey W. Baker wrote:
>> Have you considered booting your
>>machine with elevator=deadline?
>
>Although I'm not the OP for this problem, I thought I'd try it out.
>WOW.. this should be in a Pg tuning guide somewhere.
[snip]
>16-drive RAID 10
Yeah, the default scheduler tries to optimize disk access patterns for a
single-spindle setup, and actually makes things worse if you have a
device with multiple spindles.
Mike Stone