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Date: Wed, 4 Oct 2006 08:41:25 +0530
From: "Joseph Koshy" <joseph.koshy@gmail.com>
To: "Martin Cracauer" <cracauer@cons.org>
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References: <3131aa530609290721o267d55bakff4e801ef4000675@mail.gmail.com>
	<op.tgnbxpqguaqwyp@bofh.cs.uni-sb.de>
	<20061004021401.GA69704@cons.org>
Cc: Jan Zacharias <jan@graphics.cs.uni-sb.de>,
	Performance/tuning <freebsd-performance@freebsd.org>
Subject: Re: Samba Performance problem
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mc> Also make sure that you don't use a giant-locked driver
mc> somewhere in the chain to the filessystem and that WITNESS
mc> and friends are off.  Is this a SMP machine?

As a general suggestion, you can use hwpmc(4) and pmcstat(8)
to understand where the bottlenecks are.  For example, you
can capture a system-wide profile and convert it to a set
of gmon.out files, one per executable object (kernel,
shared libraries, executables) in the system.

-- 
FreeBSD Volunteer,     http://people.freebsd.org/~jkoshy