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From: Avi Kivity <avi@qumranet.com>
To: Andrea Arcangeli <andrea@qumranet.com>
Cc: "David S. Ahern" <daahern@cisco.com>, kvm@vger.kernel.org
Subject: Re: [kvm-devel] performance with guests running 2.4 kernels	(specifically RHEL3)
Date: Wed, 28 May 2008 17:57:21 +0300	[thread overview]
Message-ID: <483D72D1.7080803@qumranet.com> (raw)
In-Reply-To: <20080528144850.GX27375@duo.random>

Andrea Arcangeli wrote:
> On Wed, May 28, 2008 at 08:13:44AM -0600, David S. Ahern wrote:
>   
>> Weird. Could it be something about the hosts?
>>     
>
> Note that the VM itself will never make use of kmap. The VM is "data"
> agonistic. The VM has never any idea with the data contained by the
> pages. kmap/kmap_atomic/kunmap_atomic are only need to access _data_.
>
>   

What about CONFIG_HIGHPTE?



-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.


  reply	other threads:[~2008-05-28 14:57 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
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 [this message]
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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