linux-kernel - System tick rate

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Message-ID: <alpine.LSU.2.00.0903121435190.3835@fbirervta.pbzchgretzou.qr>
Date:	Thu, 12 Mar 2009 14:38:19 +0100 (CET)
From:	Jan Engelhardt <jengelh@...ozas.de>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: System tick rate

Hi,


is there an "official" way of obtaining the current tick rate when 
CONFIG_NO_HZ? This is for a simple statistics display tool. Counting the 
interrupts from /proc/interrupts (calculating the difference between two 
timepoints) seems to work, though I have seen at least one x86 machine 
where both IRQ0 and the LOC counters increase, making it not entirely 
obvious which number to take as a base. Suggestions?
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