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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>
Cc:        Jan Zacharias <jan@graphics.cs.uni-sb.de>, Performance/tuning <freebsd-performance@freebsd.org>
Subject:   Re: Samba Performance problem
Message-ID:  <84dead720610032011s716955f8q5351e1ca2a6c02f2@mail.gmail.com>
In-Reply-To: <20061004021401.GA69704@cons.org>
References:  <3131aa530609290721o267d55bakff4e801ef4000675@mail.gmail.com> <op.tgnbxpqguaqwyp@bofh.cs.uni-sb.de> <20061004021401.GA69704@cons.org>

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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



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