Messages in this thread | ![/](/images/icornerl.gif) | | Date | Wed, 20 Dec 2006 17:02:38 +0545 | From | "Manish Regmi" <> | Subject | Re: Linux disk performance. |
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On 12/19/06, Nick Piggin <nickpiggin@yahoo.com.au> wrote: > When you submit a request to an empty block device queue, it can > get "plugged" for a number of timer ticks before any IO is actually > started. This is done for efficiency reasons and is independent of > the IO scheduler used. >
Thanks for the information..
> Use the noop IO scheduler, as well as the attached patch, and let's > see what your numbers look like. >
Unfortunately i got the same results even after applying your patch. I also tried putting q->unplug_delay = 1; But it did not work. The result was similar.
-- --------------------------------------------------------------- regards Manish Regmi
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