The problem is that sync tome is becoming longer and longer lately
without obvious reasons (number of files to sync didn't have any
huge raise nor network became any more saturated than before) - so I
need to know which part of processes take most time in execution.
I've looked through io providers but am not sure how to make a
dtrace script to get some useful data. If someone could give me
pointers what to do - I would really appreciate it.
Hi Okie,
The first provider I suggest you bring to bear in the profile
provider. You
can find the documentation here:
http://wikis.sun.com/display/DTrace/profile+Provider
A very simple script might help you get started:
profile:::profile-1001
{
@[ustack()] = count();
}
Alternatively, the sched provider can help you understand why a
process is
giving up the CPU:
http://wikis.sun.com/display/DTrace/sched+Provider
Some of the examples in that chapter will be instructional.
Adam
--
Adam Leventhal, Fishworks http://blogs.sun.com/ahl
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