From: Tim Chen <tim.c.chen@linux.intel.com>
To: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: linux-kernel@vger.kernel.org,
Virtualization Mailing List <virtualization@lists.osdl.org>
Subject: Re: system call time increase when turning on CONFIG_PARAVIRT
Date: Fri, 02 Mar 2007 15:11:51 -0800 [thread overview]
Message-ID: <1172877111.8383.4.camel@localhost.localdomain> (raw)
In-Reply-To: <45E89CFB.4090905@goop.org>
On Fri, 2007-03-02 at 13:54 -0800, Jeremy Fitzhardinge wrote:
> [ I assume you're talking about running on native hardware. ]
>
That's correct.
> I haven't done any detailed measurements on what effect this will have,
> but it does bring the actual executed instruction stream much closer to
> the !CONFIG_PARAVIRT case, and so I would hope it would recover most or
> all of the performance loss you've noticed.
>
I also hope that the performance can be recovered as this option could
enabled in distributions' kernels in future.
Tim
next prev parent reply other threads:[~2007-03-02 23:11 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-02 20:11 system call time increase when turning on CONFIG_PARAVIRT Tim Chen
2007-03-02 21:54 ` Jeremy Fitzhardinge
2007-03-02 21:54 ` Jeremy Fitzhardinge
2007-03-02 23:11 ` Tim Chen [this message]
2007-03-03 0:16 ` Jeremy Fitzhardinge
2007-03-03 0:16 ` Jeremy Fitzhardinge
2007-03-03 7:00 ` Zachary Amsden
2007-03-08 0:02 ` Tim Chen
2007-03-08 0:02 ` Tim Chen
2007-03-08 0:55 ` Jeremy Fitzhardinge
2007-03-08 0:55 ` Jeremy Fitzhardinge
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