Nice.
On Tue, 13 Mar 2007, Tomka Gergely wrote:
On Tue, 13 Mar 2007, Tomka Gergely wrote:
On Tue, 13 Mar 2007, Justin Piszcz wrote:
Have you tried increasing your readahead values for the md device?
Yes. No real change. According to my humble mental image, readahead not a
too useful thing, when we read 1-4 thread with sdd. The io subsystem
already reading with the possible maximum speed, so don't have time to
read ahead. Correct me, if i wrong.
I was wrong, readahead can speed things up, to 450 MBps.
--
Tomka Gergely, gergely@xxxxxxxx
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