From: Avi Kivity <avi@qumranet.com>
To: "David S. Ahern" <daahern@cisco.com>
Cc: kvm@vger.kernel.org
Subject: Re: [kvm-devel] performance with guests running 2.4 kernels (specifically RHEL3)
Date: Mon, 19 May 2008 20:04:50 +0300 [thread overview]
Message-ID: <4831B332.9030308@qumranet.com> (raw)
In-Reply-To: <4831AA0B.30700@cisco.com>
David S. Ahern wrote:
> Does the fact that the hugemem kernel works just fine have any bearing
> on your options? Or rather, is there something unique about the way
> kscand works in the hugemem kernel that its performance is ok?
>
>
Yes. If your guest has < 4GB of memory, then all of it is lowmem in the
hugemem kernel, and the two-step process for modifying a pte is
short-circuited into just one step, and everything works fine.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2008-05-19 17:04 UTC|newest]
Thread overview: 73+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-16 0:15 performance with guests running 2.4 kernels (specifically RHEL3) David S. Ahern
2008-04-16 8:46 ` Avi Kivity
2008-04-17 21:12 ` David S. Ahern
2008-04-18 7:57 ` Avi Kivity
2008-04-21 4:31 ` David S. Ahern
2008-04-21 9:19 ` Avi Kivity
2008-04-21 17:07 ` David S. Ahern
2008-04-22 20:23 ` David S. Ahern
2008-04-23 8:04 ` Avi Kivity
2008-04-23 15:23 ` David S. Ahern
2008-04-23 15:53 ` Avi Kivity
2008-04-23 16:39 ` David S. Ahern
2008-04-24 17:25 ` David S. Ahern
2008-04-26 6:43 ` Avi Kivity
2008-04-26 6:20 ` Avi Kivity
2008-04-25 17:33 ` David S. Ahern
2008-04-26 6:45 ` Avi Kivity
2008-04-28 18:15 ` Marcelo Tosatti
2008-04-28 23:45 ` David S. Ahern
2008-04-30 4:18 ` David S. Ahern
2008-04-30 9:55 ` Avi Kivity
2008-04-30 13:39 ` David S. Ahern
2008-04-30 13:49 ` Avi Kivity
2008-05-11 12:32 ` Avi Kivity
2008-05-11 13:36 ` Avi Kivity
2008-05-13 3:49 ` David S. Ahern
2008-05-13 7:25 ` Avi Kivity
2008-05-14 20:35 ` David S. Ahern
2008-05-15 10:53 ` Avi Kivity
2008-05-17 4:31 ` David S. Ahern
[not found] ` <482FCEE1.5040306@qumranet.com>
[not found] ` <4830F90A.1020809@cisco.com>
2008-05-19 4:14 ` [kvm-devel] " David S. Ahern
2008-05-19 14:27 ` Avi Kivity
2008-05-19 16:25 ` David S. Ahern
2008-05-19 17:04 ` Avi Kivity [this message]
2008-05-20 14:19 ` Avi Kivity
2008-05-20 14:34 ` Avi Kivity
2008-05-22 22:08 ` David S. Ahern
2008-05-28 10:51 ` Avi Kivity
2008-05-28 14:13 ` David S. Ahern
2008-05-28 14:35 ` Avi Kivity
2008-05-28 19:49 ` David S. Ahern
2008-05-29 6:37 ` Avi Kivity
2008-05-28 14:48 ` Andrea Arcangeli
2008-05-28 14:57 ` Avi Kivity
2008-05-28 15:39 ` David S. Ahern
2008-05-29 11:49 ` Avi Kivity
2008-05-29 12:10 ` Avi Kivity
2008-05-29 13:49 ` David S. Ahern
2008-05-29 14:08 ` Avi Kivity
2008-05-28 15:58 ` Andrea Arcangeli
2008-05-28 15:37 ` Avi Kivity
2008-05-28 15:43 ` David S. Ahern
2008-05-28 17:04 ` Andrea Arcangeli
2008-05-28 17:24 ` David S. Ahern
2008-05-29 10:01 ` Avi Kivity
2008-05-29 14:27 ` Andrea Arcangeli
2008-05-29 15:11 ` David S. Ahern
2008-05-29 15:16 ` Avi Kivity
2008-05-30 13:12 ` Andrea Arcangeli
2008-05-31 7:39 ` Avi Kivity
2008-05-29 16:42 ` David S. Ahern
2008-05-31 8:16 ` Avi Kivity
2008-06-02 16:42 ` David S. Ahern
2008-06-05 8:37 ` Avi Kivity
2008-06-05 16:20 ` David S. Ahern
2008-06-06 16:40 ` Avi Kivity
2008-06-19 4:20 ` David S. Ahern
2008-06-22 6:34 ` Avi Kivity
2008-06-23 14:09 ` David S. Ahern
2008-06-25 9:51 ` Avi Kivity
2008-04-30 13:56 ` Daniel P. Berrange
2008-04-30 14:23 ` David S. Ahern
2008-04-23 8:03 ` Avi Kivity
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