How to see threads in biowait using Dtrace

@[pid

From the Blog at: https://blogs.oracle.com/onur/entry/how_to_see_threads_in

You can use following Dtrace script to see threads in biowait and how much time spent in biowait.

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#!/usr/sbin/dtrace -s

io:::wait-start

{

     self->ts=timestamp;

}

io:::wait-done

/self->ts/

{

     @[pid,execname,stack()] = count();

     @time[pid,execname]= avg((timestamp - self->ts));

     self->ts = 0;

}

tick-5sec

{

     printa(@); clear(@); printa(@time);clear(@time);

}

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