From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeremy Fitzhardinge <jeremy@goop.org>
Subject: Re: rdtscP and xen (and maybe the app-tsc answer I've
	been looking for)
Date: Tue, 22 Sep 2009 15:18:05 -0700
Message-ID: <4AB94D1D.30706@goop.org>
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To: Dan Magenheimer <dan.magenheimer@oracle.com>
Cc: kurt.hackel@oracle.com, "Xen-Devel (E-mail)" <xen-devel@lists.xensource.com>, Keir Fraser <keir.fraser@eu.citrix.com>, Jan Beulich <JBeulich@novell.com>
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On 09/22/09 13:22, Dan Magenheimer wrote:
> The reason is to improve performance while preserving
> correctness for applications that need to do tens-to-hundreds
> of thousands "timestamp reads" without changing the underlying
> OS.  Whether this is a GOOD reason is subject to interpretation,
> but it is a reason.
>   

I don't think there's anything new to add to this line of discussion.

    J