From: Andrea Arcangeli <andrea@suse.de>
To: Vojtech Pavlik <vojtech@suse.cz>
Cc: James Cleverdon <jamesclv@us.ibm.com>,
"David S. Miller" <davem@redhat.com>,
alan@lxorguk.ukuu.org.uk, ak@suse.de,
linux-kernel@vger.kernel.org, johnstul@us.ibm.com,
anton.wilson@camotion.com
Subject: Re: do_gettimeofday vs. rdtsc in the scheduler
Date: Thu, 19 Sep 2002 20:04:09 +0200 [thread overview]
Message-ID: <20020919180409.GG1345@dualathlon.random> (raw)
In-Reply-To: <20020918084022.A67562@ucw.cz>
On Wed, Sep 18, 2002 at 08:40:22AM +0200, Vojtech Pavlik wrote:
> The point here is: You don't need a synchronized bus clock. You don't
> need synchronized CPU clocks. You need a synchronized system-wide clock
> that doesn't drive any bus or CPU, just a simple counter in every CPU
> that you can read from inside the CPU. You can pull that pretty far and
Exactly.
Andrea
next prev parent reply other threads:[~2002-09-19 17:58 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200209172020.g8HKKPF13227@eng2.beaverton.ibm.com.suse.lists.linux.kernel>
[not found] ` <1032294559.22815.180.camel@cog.suse.lists.linux.kernel>
[not found] ` <20020917.133933.69057655.davem@redhat.com.suse.lists.linux.kernel>
2002-09-17 21:00 ` do_gettimeofday vs. rdtsc in the scheduler Andi Kleen
2002-09-17 20:54 ` David S. Miller
2002-09-17 21:28 ` Alan Cox
2002-09-17 21:18 ` David S. Miller
2002-09-17 22:02 ` James Cleverdon
2002-09-17 22:44 ` Andi Kleen
2002-09-17 22:38 ` David S. Miller
2002-09-17 22:55 ` James Cleverdon
2002-09-17 23:12 ` David S. Miller
2002-09-17 23:32 ` john stultz
2002-09-17 23:32 ` David S. Miller
2002-09-17 23:52 ` Andi Kleen
2002-09-17 23:46 ` David S. Miller
2002-09-17 23:58 ` Andi Kleen
2002-09-17 23:51 ` David S. Miller
2002-09-18 0:05 ` Andi Kleen
2002-09-18 1:04 ` James Cleverdon
2002-09-19 18:02 ` Andrea Arcangeli
2002-09-20 11:04 ` Maciej W. Rozycki
2002-09-19 11:20 ` Mikael Pettersson
2002-09-19 13:27 ` Alan Cox
2002-09-19 13:39 ` Mikael Pettersson
2002-09-20 15:26 ` John Levon
2002-09-18 6:40 ` Vojtech Pavlik
2002-09-19 18:04 ` Andrea Arcangeli [this message]
[not found] <200209172020.g8HKKPF13227@eng2.beaverton.ibm.com>
2002-09-17 20:29 ` Fwd: " john stultz
2002-09-17 20:39 ` David S. Miller
2002-09-17 20:57 ` john stultz
2002-09-17 20:56 ` David S. Miller
2002-09-09 22:21 anton wilson
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