linux-kernel - Re: [RFC][PATCH] cpuidle: avoid singing capacitors

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Message-ID: <20080229214407.GC1289@csclub.uwaterloo.ca>
Date:	Fri, 29 Feb 2008 16:44:07 -0500
From:	lsorense@...lub.uwaterloo.ca (Lennart Sorensen)
To:	Pierre Ossman <drzeus-list@...eus.cx>
Cc:	Venkatesh Pallipadi <venkatesh.pallipadi@...el.com>,
	Adam Belay <abelay@...ell.com>,
	linux-pm@...ts.linux-foundation.org,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [RFC][PATCH] cpuidle: avoid singing capacitors

On Fri, Feb 29, 2008 at 07:38:12PM +0100, Pierre Ossman wrote:
> +/*
> + * The minimum number of ticks needed to not oscillate faster than
> + * 500 Hz.
> + */
> +#define MIN_DEEP_INTERVAL (HZ / 500)

What happens here if HZ < 500?  Or does the fact that you have less than
500HZ jiffies automatically imply that you can't go to sleep more than
the jiffy rate times per second?

--
Len Sorensen
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