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Date:      Sun, 28 Sep 2008 12:17:13 -0400
From:      Bill Moran <wmoran@potentialtech.com>
To:        Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
Cc:        Danny Do <ai_quoc@hotmail.com>, freebsd-questions@freebsd.org
Subject:   Re: Hard disk bottle neck.
Message-ID:  <20080928121713.5c905a40.wmoran@potentialtech.com>
In-Reply-To: <20080928165534.X96877@wojtek.tensor.gdynia.pl>
References:  <00d101c92154$691f53c0$3b5dfb40$@com> <48DF78C3.9080401@infracaninophile.co.uk> <BAY139-DAV95C49C49907D7EFE01A0190410@phx.gbl> <20080928165534.X96877@wojtek.tensor.gdynia.pl>

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Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> wrote:
>
> after you recompile the kernel with that patch, check your disk 
> performance in some directory consisting of many large files
> 
> cd that_dir
> for x in *;do (cat $x >/dev/null &);done
> 
> while running systat,:vmstat on another console

More specifically, do this before and after you make the change, to
demonstrate whether or not you actually fixed the problem.

-- 
Bill Moran
http://www.potentialtech.com



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