linux-kernel - Re: Can context switches be faster?

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Message-ID: <45302C01.4070503@goop.org>
Date:	Fri, 13 Oct 2006 17:14:57 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
CC:	Andreas Mohr <andi@...x01.fht-esslingen.de>,
	John Richard Moser <nigelenki@...cast.net>,
	Chris Friesen <cfriesen@...tel.com>,
	linux-kernel@...r.kernel.org
Subject: Re: Can context switches be faster?

Alan Cox wrote:
> We already do. The newer x86 processors also have TLB tagging so they
> can (if you find one without errata!) avoid the actual flush and instead
> track the tag.

Are there any?  I think AMD dropped it rather than spend the effort to 
make it work.

    J

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