Subject: Re: [PATCH] clean up FIXME in do_timer_interrupt
From: Lee Revell <rlrevell@joe-job.com>
To: george@mvista.com
Cc: Andrew Morton <akpm@osdl.org>, mingo@elte.hu, linux-kernel@vger.kernel.org
In-Reply-To: <4230087E.3080307@mvista.com>
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Date: Fri, 11 Mar 2005 17:23:49 -0500
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On Thu, 2005-03-10 at 00:42 -0800, George Anzinger wrote:
> This patch changes the update of the cmos clock to be timer driven
> rather than poll driven by the timer interrupt function.  If the clock
> is not being synced to an outside source the timer is removed and thus
> system overhead is nill in that case.  The update frequency is still ~11
> minutes and missing the update window still causes a retry in 60
> seconds.

No replies yet.  Are there any objections to this patch?

If not, it should be applied as it reduces the worst case latency of the
-RT kernel from about 90 to 40 usecs on my hardware.

The effect on mainline should be negligible.

Lee

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