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
Subject: Re: [PATCH] clean up FIXME in do_timer_interrupt
Date: Fri, 11 Mar 2005 17:23:49 -0500 [thread overview]
Message-ID: <1110579830.19661.10.camel@mindpipe> (raw)
In-Reply-To: <4230087E.3080307@mvista.com>
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
next prev parent reply other threads:[~2005-03-11 22:29 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-03 17:10 [PATCH] clean up FIXME in do_timer_interrupt Lee Revell
2005-03-04 0:45 ` Andrew Morton
2005-03-04 1:19 ` Lee Revell
2005-03-04 10:28 ` George Anzinger
2005-03-04 20:43 ` Lee Revell
2005-03-04 20:58 ` George Anzinger
2005-03-08 20:27 ` Lee Revell
2005-03-08 23:23 ` George Anzinger
2005-03-10 8:42 ` George Anzinger
2005-03-11 22:23 ` Lee Revell [this message]
2005-03-11 22:34 ` Andrew Morton
2005-03-12 2:01 ` George Anzinger
2005-03-19 9:33 ` [PATCH] clean up FIXME in do_timer_interrupt-lock fix George Anzinger
2005-03-19 21:21 ` Andrew Morton
2005-03-19 22:23 ` George Anzinger
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