Subj : Re: profiling pthread mutex contention
To   : comp.programming.threads
From : Casper H.S. Dik
Date : Fri Mar 04 2005 03:27 pm

"jezuk" <jonathnezekiel@aol.com> writes:

>Are there any tools or any suggestions that profile posix mutex
>contention, i.e. stats on how long is spent waiting for other mutex locks
>to free themselves up? How many times mutexes have to wait etc?

>I am writing my program in C using POSIX under Solaris 2.9.

>The intel profiler does this I know but is not much use. I am not sure
>whether LockStat can do it. Is there any way I can write something to
>generate these stats or a tool that will generate them for me?

lockstat only looks at kernel locks; Solaris 10 has "plockstat" which
does the same for user land locks.

Casper
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Statements on Sun products included here are not gospel and may
be fiction rather than truth.

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