From: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
To: "Dong, Eddie" <eddie.dong-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Re: A testing for KVM
Date: Thu, 21 Jun 2007 12:28:11 +0300 [thread overview]
Message-ID: <467A44AB.1020202@qumranet.com> (raw)
In-Reply-To: <10EA09EFD8728347A513008B6B0DA77A01A56502-wq7ZOvIWXbNpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
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Dong, Eddie wrote:
> Yes. but I am wondering about the performance. Hypercall to get
> host time should be expansive than hardware support TSC read which is
> about 200 cycles. I may make mistake since I didn't go through the patch
> in very detail.
>
> gettimeofday is very important :-)
>
Maybe we should have a guest-visible tsc offset that can be used to
extrapolate the last clock read using the tsc.
--
error compiling committee.c: too many arguments to function
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next prev parent reply other threads:[~2007-06-21 9:28 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-13 8:37 A testing for KVM Zhao, Yunfeng
[not found] ` <10EA09EFD8728347A513008B6B0DA77AA3EEA0-wq7ZOvIWXbNpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2007-06-13 8:48 ` Avi Kivity
[not found] ` <466FAF56.4070802-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-06-13 10:16 ` Dong, Eddie
[not found] ` <10EA09EFD8728347A513008B6B0DA77A0198452F-wq7ZOvIWXbNpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2007-06-13 10:58 ` Avi Kivity
2007-06-13 11:02 ` Gregory Haskins
[not found] ` <1181732578.26394.9.camel-5CR4LY5GPkvLDviKLk5550HKjMygAv58XqFh9Ls21Oc@public.gmane.org>
2007-06-13 11:41 ` Dor Laor
2007-06-21 3:23 ` Dong, Eddie
[not found] ` <10EA09EFD8728347A513008B6B0DA77A01A562AD-wq7ZOvIWXbNpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2007-06-21 9:01 ` Avi Kivity
[not found] ` <467A3E66.4090406-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-06-21 9:09 ` Dong, Eddie
[not found] ` <10EA09EFD8728347A513008B6B0DA77A01A56502-wq7ZOvIWXbNpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2007-06-21 9:28 ` Avi Kivity [this message]
-- strict thread matches above, loose matches on Subject: below --
2007-06-21 5:12 Dong, Eddie
2007-06-21 11:06 Gregory Haskins
[not found] ` <467A23890200005A000262B7-Igcdv/6uVdMHoYOw/+koYqIwWpluYiW7@public.gmane.org>
2007-06-21 12:41 ` Dong, Eddie
2007-06-21 12:50 Gregory Haskins
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