HEADS UP: Major CAM performance regression

Luigi Rizzo rizzo at iet.unipi.it
Mon Feb 16 23:51:40 PST 2009


On Sat, Feb 14, 2009 at 07:33:25AM -0700, Scott Long wrote:
...
> >I'll try your suggestion if you have one.
> 
> I don't have a magic universal testing suite in my back pocket, sorry.
> You need to look at your expected workload and develop tests to simulate
> it.  When I do testing during driver development, I try a lot of
> different parallel, sequential, large i/o, and small i/o combinations.

i just committed a port sysutils/fio that perhaps can help testing
IO performance with various patterns.

cheers
luigi


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