Re: [PERFORM] different io elevators in linux

2004-10-27 Thread Mark Wong
On Mon, Oct 25, 2004 at 10:09:17AM -0700, Josh Berkus wrote: > Bjorn, > > > I haven't read much FAQs but has anyone done some benchmarks with > > different io schedulers in linux with postgresql? > > According to OSDL, using the "deadline" scheduler sometimes results in a > roughly 5% boost to p

Re: [PERFORM] different io elevators in linux

2004-10-25 Thread Josh Berkus
Bjorn, > I haven't read much FAQs but has anyone done some benchmarks with > different io schedulers in linux with postgresql? According to OSDL, using the "deadline" scheduler sometimes results in a roughly 5% boost to performance, and sometimes none, depending on the application. We use it

[PERFORM] different io elevators in linux

2004-10-25 Thread Bjorn Bength
I haven't read much FAQs but has anyone done some benchmarks with different io schedulers in linux with postgresql? Look at these: http://kerneltrap.org/node/view/843 http://simonraven.nuit.ca/blog/archives/2004/05/20/quikconf/ Maybe its well known knowledge but i just found this information and