On Friday 24 October 2008, "Grzegorz Jaśkiewicz" <gryzman@gmail.com> wrote:
> with two sata discs in software raid 1 on linux. And it seems to spend
> loads of time (40-60% sometimes) on waits. I guess this is due to lack of
> >aio support in postgresql,
No, it's due to the fact that hard disks are slow; much, much slower than
CPU or memory.
--
Alan