different io elevators in linux

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
haven't had time to do my own testing yet.

mvh

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