From: Christoph Rohland <cr@sap.com>
To: Jeff Garzik <jgarzik@mandrakesoft.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
Tigran Aivazian <tigran@veritas.com>,
Mikael Pettersson <mikpe@csd.uu.se>, Jordan <ledzep37@home.com>,
Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: Error in x86 CPU capabilities starting with test5/6
Date: 17 Nov 2000 14:21:03 +0100 [thread overview]
Message-ID: <qwwlmuivio0.fsf@sap.com> (raw)
In-Reply-To: <E13wkLK-0000bP-00@the-village.bc.nu> <qwwpujuvk1s.fsf@sap.com> <3A152DC1.21B35324@mandrakesoft.com>
In-Reply-To: Jeff Garzik's message of "Fri, 17 Nov 2000 08:08:17 -0500"
Hi Jeff,
On Fri, 17 Nov 2000, Jeff Garzik wrote:
> IIRC, this came up a long time ago WRT Apache, which made a lot of
> gettimeofday() calls. Someone (Linus?) proposed the solution of a
> 'magic page' which holds information like gettimeofday() stuff, but
> could be handled much more rapidly than a standard syscall.
Yes, I followed that thread closely and would love to see this as the
implementation for gettimeofday. This would make rdtsc for
applications superfluous.
Greetings
Christoph
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next prev parent reply other threads:[~2000-11-17 13:51 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-11-17 9:50 Error in x86 CPU capabilities starting with test5/6 Jordan
2000-11-17 11:39 ` Mikael Pettersson
2000-11-17 11:58 ` Tigran Aivazian
2000-11-17 12:10 ` Alan Cox
2000-11-17 12:51 ` Christoph Rohland
2000-11-17 13:08 ` Jeff Garzik
2000-11-17 13:21 ` Christoph Rohland [this message]
2000-11-17 13:31 ` Andi Kleen
2000-11-17 13:40 ` Jeff Garzik
2000-11-17 13:54 ` Andi Kleen
2000-11-17 14:02 ` Tigran Aivazian
2000-11-17 14:30 ` Christoph Rohland
2000-11-17 14:50 ` Alan Cox
2000-11-17 14:00 ` Arjan van de Ven
2000-11-17 15:18 ` Andrea Arcangeli
2000-11-17 16:06 ` Christoph Rohland
2000-11-17 18:28 ` Andrea Arcangeli
2000-11-18 9:57 ` Christoph Rohland
2000-11-19 10:31 ` Albert D. Cahalan
2000-11-17 13:38 ` Mikael Pettersson
2000-11-17 12:04 ` Andi Kleen
2000-11-17 12:14 ` Jan Niehusmann
2000-11-17 12:22 ` Andi Kleen
2000-11-17 13:26 ` Mohammad A. Haque
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