linux-kernel - Re: [QUERY]: Is using CPU hotplug right for isolating CPUs?

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Message-ID: <CAKohpond3wY25H_tsJQ9xs_D2dP2_wGGU5J8fBteyfB=7wmAdA@mail.gmail.com>
Date:	Mon, 20 Jan 2014 17:00:20 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Frederic Weisbecker <fweisbec@...il.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Lists linaro-kernel <linaro-kernel@...ts.linaro.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Linaro Networking <linaro-networking@...aro.org>
Subject: Re: [QUERY]: Is using CPU hotplug right for isolating CPUs?

On 16 January 2014 15:16, Thomas Gleixner <tglx@...utronix.de> wrote:
> Just do the math.
>
>      max reload value / timer freq = max time span

Thanks.

> So:
>
>      0x7fffffff / 24MHz = 89.478485 sec
>
> Nothing to do here except to get rid of the requirement to arm the
> timer at all.

@Frederic: Any inputs on how to get rid of this timer here?
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