Re: Quad Opteron stuck in the mud

* Dan Harris (fbsd(at)drivefaster(dot)net) wrote:
> On Jul 13, 2005, at 1:11 PM, John A Meinel wrote:
> >I might be wrong, but there may be something much more substantially
> >wrong than slow i/o.
>
> Yes, I'm afraid of that too. I just don't know what tools I should
> use to figure that out. I have some 20 other databases on this
> system, same schema but varying sizes, and the small ones perform
> very well. It feels like there is an O(n) increase in wait time that
> has recently become very noticeable on the largest of them.

Could you come up w/ a test case that others could reproduce where
explain isn't returning? I think that would be very useful towards
solving at least that issue...

Thanks,

Stephen