From: Andi Kleen <ak@suse.de>
To: "David S. Miller" <davem@redhat.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Fire Engine??
Date: Thu, 27 Nov 2003 00:29:47 +0100 [thread overview]
Message-ID: <20031127002947.2d731219.ak@suse.de> (raw)
In-Reply-To: <20031126151352.160b4734.davem@redhat.com>
On Wed, 26 Nov 2003 15:13:52 -0800
"David S. Miller" <davem@redhat.com> wrote:
> On Wed, 26 Nov 2003 23:56:41 +0100
> Andi Kleen <ak@suse.de> wrote:
>
> > On Wed, 26 Nov 2003 14:36:20 -0800
> > "David S. Miller" <davem@redhat.com> wrote:
> >
> > > I don't think this is acceptable. It's important that all
> > > of the timestamps are as accurate as they were before.
> >
> > I disagree on that. The window is small and slowing down 99.99999% of all
> > users who never care about this for this extremely obscure
> > misdesigned API does not make much sense to me.
>
> We can't change behavior like this. Every time we've tried to
> do it, we've been burnt. Remember nonlocal-bind?
The behaviour is not really changed, just the precision of the timestamp
is temporarily (a few tens of ms on a busy network) worse.
And the jitter in this timestamp is already higher than this when
you consider queueing delays and interrupt mitigation in the driver.
-Andi
next prev parent reply other threads:[~2003-11-26 23:29 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <BAY1-DAV15JU71pROHD000040e2@hotmail.com.suse.lists.linux.kernel>
[not found] ` <20031125183035.1c17185a.davem@redhat.com.suse.lists.linux.kernel>
2003-11-26 9:53 ` Fire Engine?? Andi Kleen
2003-11-26 11:35 ` John Bradford
2003-11-26 18:50 ` Mike Fedyk
2003-11-26 19:19 ` Diego Calleja García
2003-11-26 19:59 ` Mike Fedyk
2003-11-27 3:54 ` Bill Huey
2003-11-26 15:00 ` Trond Myklebust
2003-11-26 23:01 ` Andi Kleen
2003-11-26 23:23 ` Trond Myklebust
2003-11-26 23:38 ` Andi Kleen
2003-11-26 19:30 ` David S. Miller
2003-11-26 19:58 ` Paul Menage
2003-11-26 20:03 ` David S. Miller
2003-11-26 22:29 ` Andi Kleen
2003-11-26 22:36 ` David S. Miller
2003-11-26 22:56 ` Andi Kleen
2003-11-26 23:13 ` David S. Miller
2003-11-26 23:29 ` Andi Kleen [this message]
2003-11-26 23:41 ` Ben Greear
2003-11-27 0:01 ` Fast timestamps David S. Miller
2003-11-27 0:30 ` Mitchell Blank Jr
2003-11-27 1:57 ` Ben Greear
2003-11-26 20:01 ` Fire Engine?? Jamie Lokier
2003-11-26 20:04 ` David S. Miller
2003-11-26 21:54 ` Pekka Pietikainen
2003-11-26 20:22 ` Theodore Ts'o
2003-11-26 21:02 ` David S. Miller
2003-11-26 21:24 ` Jamie Lokier
2003-11-26 21:38 ` David S. Miller
2003-11-26 23:43 ` Jamie Lokier
2003-11-26 21:34 ` Arjan van de Ven
2003-11-26 22:58 ` Andi Kleen
2003-11-27 12:16 ` Ingo Oeser
2003-11-26 22:39 ` Andi Kleen
2003-11-26 22:46 ` David S. Miller
2003-11-26 0:15 Mr. BOFH
2003-11-26 2:30 ` David S. Miller
2003-11-26 5:41 ` Valdis.Kletnieks
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