From: Andi Kleen <andi@firstfloor.org>
To: "David S. Ahern" <daahern@cisco.com>
Cc: kvm-devel <kvm@vger.kernel.org>,
Marcelo Tosatti <mtosatti@redhat.com>,
Glauber de Oliveira Costa <gcosta@redhat.com>,
Avi Kivity <avi@redhat.com>
Subject: Re: gettimeofday "slow" in RHEL4 guests
Date: Tue, 25 Nov 2008 11:14:53 +0100 [thread overview]
Message-ID: <87d4gkcdsy.fsf@basil.nowhere.org> (raw)
In-Reply-To: <492B8204.5@cisco.com> (David S. Ahern's message of "Mon, 24 Nov 2008 21:41:40 -0700")
"David S. Ahern" <daahern@cisco.com> writes:
>
> Any chance the pit or pmtmr options can be optimized a bit?
They both will require vmexits and never be really fast. Same
for HPET. If you want fast gtod you really need to make TSC work.
-Andi
--
ak@linux.intel.com
next prev parent reply other threads:[~2008-11-25 10:14 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-24 17:47 gettimeofday "slow" in RHEL4 guests David S. Ahern
2008-11-25 4:41 ` David S. Ahern
2008-11-25 10:14 ` Andi Kleen [this message]
2008-11-25 11:17 ` Alexander Graf
2008-11-25 11:48 ` Andi Kleen
2008-11-25 12:13 ` Alexander Graf
2008-11-25 12:52 ` Andi Kleen
2008-12-28 18:38 ` Marcelo Tosatti
2008-12-29 12:37 ` Yang, Sheng
2008-12-29 13:11 ` Avi Kivity
2008-12-29 16:12 ` Dor Laor
2008-12-29 16:27 ` Avi Kivity
2008-12-29 16:29 ` Avi Kivity
2008-11-25 17:20 ` Hollis Blanchard
2008-11-25 19:09 ` David S. Ahern
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