From: Jesse Barnes <jbarnes@engr.sgi.com>
To: george@mvista.com
Cc: john stultz <johnstul@us.ibm.com>,
Christoph Lameter <clameter@sgi.com>,
Albert Cahalan <albert@users.sourceforge.net>,
lkml <linux-kernel@vger.kernel.org>,
tim@physik3.uni-rostock.de, Ulrich.Windl@rz.uni-regensburg.de,
Len Brown <len.brown@intel.com>,
linux@dominikbrodowski.de, David Mosberger <davidm@hpl.hp.com>,
Andi Kleen <ak@suse.de>,
paulus@samba.org, schwidefsky@de.ibm.com, jimix@us.ibm.com,
keith maanthey <kmannth@us.ibm.com>, greg kh <greg@kroah.com>,
Patricia Gaughen <gone@us.ibm.com>,
Chris McDermott <lcm@us.ibm.com>
Subject: Re: [RFC][PATCH] new timeofday core subsystem (v.A0)
Date: Wed, 8 Sep 2004 23:37:30 -0700 [thread overview]
Message-ID: <200409082337.30961.jbarnes@engr.sgi.com> (raw)
In-Reply-To: <413FDC9F.1030409@mvista.com>
On Wednesday, September 8, 2004 9:31 pm, George Anzinger wrote:
> a.) resolution. If you don't put a limit on this you will invite timer
> storms. Currently, by useing 1/HZ resolution, all timer "line up" on ticks
> and reduce the interrupt overhead that would occure if we actually tried to
> give "exactly" what was asked for. This is a matter of math and can be
> handled (assuming we resist the urge to go shopping :))
This can be bad though if lots of CPUs hit it at the same time or nearly so if
they're all trying to write the same cacheline or two.
Jesse
next prev parent reply other threads:[~2004-09-09 6:38 UTC|newest]
Thread overview: 86+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-02 21:07 [RFC] New Time of day proposal (updated 9/2/04) john stultz
2004-09-02 21:09 ` [RFC][PATCH] new timeofday core subsystem (v.A0) john stultz
2004-09-02 21:11 ` [RFC][PATCH] new timeofday i386 hooks (v.A0) john stultz
2004-09-02 21:12 ` [RFC][PATCH] new timeofday i386 timesources (v.A0) john stultz
2004-09-03 1:44 ` [RFC][PATCH] new timeofday i386 hooks (v.A0) George Anzinger
2004-09-03 2:06 ` john stultz
2004-09-03 8:07 ` Ulrich Windl
2004-09-03 18:09 ` George Anzinger
2004-09-02 22:19 ` [RFC][PATCH] new timeofday core subsystem (v.A0) Christoph Lameter
2004-09-02 22:28 ` john stultz
2004-09-02 22:42 ` Christoph Lameter
2004-09-02 23:14 ` john stultz
2004-09-02 23:39 ` Christoph Lameter
2004-09-03 0:07 ` john stultz
2004-09-03 0:47 ` Christoph Lameter
2004-09-03 1:30 ` john stultz
2004-09-03 7:43 ` George Anzinger
2004-09-03 19:32 ` john stultz
2004-09-03 16:18 ` Christoph Lameter
2004-09-03 21:00 ` john stultz
2004-09-03 22:04 ` Christoph Lameter
2004-09-03 23:00 ` john stultz
2004-09-04 0:11 ` Christoph Lameter
2004-09-03 1:39 ` George Anzinger
2004-09-03 1:58 ` john stultz
2004-09-03 6:42 ` Albert Cahalan
2004-09-03 7:24 ` George Anzinger
2004-09-03 19:27 ` john stultz
2004-09-03 22:10 ` George Anzinger
2004-09-03 23:32 ` john stultz
2004-09-04 0:02 ` George Anzinger
2004-09-08 18:07 ` john stultz
2004-09-09 0:08 ` George Anzinger
2004-09-09 0:51 ` john stultz
2004-09-09 3:14 ` Christoph Lameter
2004-09-09 3:32 ` john stultz
2004-09-09 4:31 ` George Anzinger
2004-09-09 6:37 ` Jesse Barnes [this message]
2004-09-09 8:09 ` George Anzinger
2004-09-09 19:07 ` john stultz
2004-09-09 20:49 ` George Anzinger
2004-09-13 21:29 ` Christoph Lameter
2004-09-13 22:25 ` john stultz
2004-09-13 22:45 ` Christoph Lameter
2004-09-14 6:53 ` Ulrich Windl
2004-09-14 17:49 ` Christoph Lameter
2004-09-15 0:57 ` George Anzinger
2004-09-15 3:32 ` Christoph Lameter
2004-09-15 8:04 ` George Anzinger
2004-09-15 8:54 ` Dominik Brodowski
2004-09-15 17:54 ` George Anzinger
2004-09-15 9:12 ` Andi Kleen
2004-09-15 15:46 ` Christoph Lameter
2004-09-15 18:00 ` George Anzinger
2004-09-15 18:28 ` Christoph Lameter
2004-09-15 6:46 ` Christoph Lameter
2004-09-15 16:32 ` john stultz
2004-09-15 16:46 ` Christoph Lameter
2004-09-15 17:13 ` john stultz
2004-09-15 17:30 ` Christoph Lameter
2004-09-15 18:48 ` john stultz
2004-09-15 19:58 ` George Anzinger
2004-09-15 20:20 ` Christoph Lameter
2004-09-16 7:02 ` Ulrich Windl
2004-09-03 19:18 ` john stultz
2004-09-02 22:09 ` [RFC] New Time of day proposal (updated 9/2/04) Christoph Lameter
2004-09-02 22:22 ` john stultz
2004-09-02 22:47 ` Christoph Lameter
2004-09-03 9:54 ` Dominik Brodowski
2004-09-03 19:41 ` john stultz
2004-09-03 20:26 ` Dominik Brodowski
2004-09-03 21:05 ` john stultz
2004-09-06 6:26 ` Ulrich Windl
2004-09-06 11:56 ` Alan Cox
2004-09-07 16:14 ` Christoph Lameter
2004-09-03 15:17 ` Andi Kleen
2004-09-03 20:11 ` john stultz
2004-09-04 13:00 ` Andi Kleen
2004-09-07 16:10 ` Christoph Lameter
2004-09-07 18:24 ` George Anzinger
2004-09-07 20:55 ` Christoph Lameter
2004-09-07 21:42 ` George Anzinger
2004-09-08 6:26 ` Ulrich Windl
2004-09-08 18:25 ` john stultz
[not found] <413850B9.15119.BA95FD@rkdvmks1.ngate.uni-regensburg.de>
[not found] ` <1094224071.431.7758.camel@cube>
2004-09-06 6:08 ` [RFC][PATCH] new timeofday core subsystem (v.A0) Ulrich Windl
2004-09-12 17:11 ` Albert Cahalan
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