dtrace script for io latency/throughput

Michael W. Lucas mwlucas at michaelwlucas.com
Wed Aug 19 01:50:30 UTC 2015


On Tue, Aug 18, 2015 at 06:07:44PM -0400, Ryan Stone wrote:
>    Try this:
>    [1]https://people.freebsd.org/~rstone/rw.d
>    I've run it on a recent-ish head and it appears to give reasonable
>    data.


Brilliant, thank you!

For the archives: if you want to see both reads and writes, you need
to do something to generate both types of I/O.

==ml

-- 
Michael W. Lucas  -  mwlucas at michaelwlucas.com, Twitter @mwlauthor 
http://www.MichaelWLucas.com/, http://blather.MichaelWLucas.com/


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