Linux & Dell/EMC SAN

jason andrade jason at dstc.edu.au
Sat Aug 17 00:22:00 CDT 2002


On Fri, 16 Aug 2002, Craig I. Hagan wrote:

> you should be ablve to do better than that. out of curiosity, what value have
> you set vm.max-readahead (/proc/sys/vm/max-readahead) to? I've found that my
> peak performance is w/ 1023, with 511 being nearly identical and 255 being
> somewhat slower.

it's at a default of 127.  that's very interesting.. what sort of system do
you have connected to your storage ? mine's a dual p3/733 running redhat linux
2.4.18-5 with dual qla2200s and 1G of system ram.  it has 128 nfsds running
at present..

regards,

-jason




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