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From: "Nikita V. Youshchenko" <yoush@cs.msu.su>
To: Mohan V <mohanvforum@gmail.com>
Subject: Re: Drift when measuring time using add_timer
Date: Tue, 28 Dec 2010 15:14:34 +0300
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>            do_gettimeofday(&timeval);

Try getnstimeofday() instead