On Mon, Nov 30, 2009 at 3:33 PM, Greg Smith <g...@2ndquadrant.com> wrote:
> > Returning to the real world of database performance, every dollar spent on > your processors and expensive memory is one you can't spend on disks > instead, so in reality AMD's cost effectiveness can make for a better > overall database system at the same price point. If you really need a lot > of disks to make your app performance well, better to focus on that rather > than trivia like how fast stuff moves around the memory bus. > > If I might add something from my experience, the CPU itself doesn't make much difference, but memory, is a big part of IO - and so it makes a difference , huge one between 800 and 1333 mhz bus there. as for the rest, I second - all money spent on CPU are not spent on better discs. And that's a waste in DB world. I suppose, the best interpretation of that would be - never go for faster CPU, but the bus, and memory is as much important as discs, controller, etc. -- GJ
