Re: 2.6.12-rc6-mm1 & 2K lun testing

From: William Lee Irwin III
Date: Thu Jun 16 2005 - 17:51:58 EST

On Thu, Jun 16, 2005 at 12:50:59PM -0700, Badari Pulavarty wrote:
> Yes. I am using CFQ scheduler. I changed nr_requests to 4 for all
> my devices. I also changed "min_free_kbytes" to 64M.
> Response time is still bad. Here is the vmstat, meminfo, slabinfo
> and profle output. I am not sure why profile output shows
> default_idle(), when vmstat shows 100% CPU sys.

It's because you're sorting on the third field of readprofile(1),
which is pure gibberish. Undoing this mistake will immediately
enlighten you.

Also, turn off slab poisoning when doing performance analyses.

-- wli
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