From: "Michael S. Tsirkin" <mst@redhat.com>
To: Anthony Liguori <anthony@codemonkey.ws>
Cc: qemu-devel@nongnu.org, Juan Quintela <quintela@redhat.com>
Subject: [Qemu-devel] Re: [PATCH 02/10] Add buffered_file_internal constant
Date: Tue, 30 Nov 2010 16:11:50 +0200 [thread overview]
Message-ID: <20101130141150.GB20536@redhat.com> (raw)
In-Reply-To: <4CF50410.3080305@codemonkey.ws>
On Tue, Nov 30, 2010 at 08:02:56AM -0600, Anthony Liguori wrote:
> If we're burning excess CPU walking a 100MB bitmap, then let's fix
> that problem. Stopping every 1MB worth of the bitmap to do other
> work just papers over the real problem (that we're walking 100MB
> bitmap).
Just using a bit per page will already make the problem 8x smaller,
won't it? Is that enough to avoid the need for a new kernel interface?
--
MST
next prev parent reply other threads:[~2010-12-01 4:45 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-23 23:02 [Qemu-devel] [PATCH 00/10] Fix migration with lots of memory Juan Quintela
2010-11-23 23:02 ` [Qemu-devel] [PATCH 01/10] Add spent time to migration Juan Quintela
2010-11-23 23:02 ` [Qemu-devel] [PATCH 02/10] Add buffered_file_internal constant Juan Quintela
2010-11-24 10:40 ` [Qemu-devel] " Michael S. Tsirkin
2010-11-24 10:52 ` Juan Quintela
2010-11-24 11:04 ` Michael S. Tsirkin
2010-11-24 11:13 ` Juan Quintela
2010-11-24 11:19 ` Michael S. Tsirkin
[not found] ` <4CF46012.2060804@codemonkey.ws>
2010-11-30 11:56 ` Juan Quintela
2010-11-30 14:02 ` Anthony Liguori
2010-11-30 14:11 ` Michael S. Tsirkin [this message]
2010-11-30 14:22 ` Anthony Liguori
2010-11-30 15:40 ` Juan Quintela
2010-11-30 16:10 ` Michael S. Tsirkin
2010-11-30 16:32 ` Juan Quintela
2010-11-30 16:44 ` Anthony Liguori
2010-11-30 18:04 ` Juan Quintela
2010-11-30 18:54 ` Anthony Liguori
2010-11-30 19:15 ` Juan Quintela
2010-11-30 20:23 ` Anthony Liguori
2010-11-30 20:56 ` Juan Quintela
2010-11-23 23:03 ` [Qemu-devel] [PATCH 03/10] Add printf debug to savevm Juan Quintela
[not found] ` <4CF45AB2.7050506@codemonkey.ws>
2010-11-30 10:36 ` Stefan Hajnoczi
2010-11-30 22:40 ` [Qemu-devel] " Juan Quintela
2010-12-01 7:50 ` Stefan Hajnoczi
2010-11-23 23:03 ` [Qemu-devel] [PATCH 04/10] No need to iterate if we already are over the limit Juan Quintela
2010-11-23 23:03 ` [Qemu-devel] [PATCH 05/10] KVM don't care about TLB handling Juan Quintela
2010-11-23 23:03 ` [Qemu-devel] [PATCH 06/10] Only calculate expected_time for stage 2 Juan Quintela
2010-11-23 23:03 ` [Qemu-devel] [PATCH 07/10] ram_save_remaining() returns an uint64_t Juan Quintela
[not found] ` <4CF45C0C.705@codemonkey.ws>
2010-11-30 7:21 ` [Qemu-devel] " Paolo Bonzini
2010-11-30 13:44 ` Anthony Liguori
2010-11-30 14:38 ` Juan Quintela
2010-11-23 23:03 ` [Qemu-devel] [PATCH 08/10] Count nanoseconds with uint64_t not doubles Juan Quintela
2010-11-30 7:17 ` [Qemu-devel] " Paolo Bonzini
[not found] ` <4CF45C5B.9080507@codemonkey.ws>
2010-11-30 14:40 ` Juan Quintela
2010-11-23 23:03 ` [Qemu-devel] [PATCH 09/10] Exit loop if we have been there too long Juan Quintela
2010-11-24 10:40 ` [Qemu-devel] " Michael S. Tsirkin
2010-11-24 11:01 ` Juan Quintela
2010-11-24 11:14 ` Michael S. Tsirkin
2010-11-24 15:16 ` Paolo Bonzini
2010-11-24 15:59 ` Michael S. Tsirkin
[not found] ` <4CF45E3F.4040609@codemonkey.ws>
2010-11-30 8:10 ` Paolo Bonzini
2010-11-30 13:26 ` Juan Quintela
[not found] ` <4CF45D67.5010906@codemonkey.ws>
2010-11-30 7:15 ` Paolo Bonzini
2010-11-30 13:47 ` Anthony Liguori
2010-11-30 13:58 ` Avi Kivity
2010-11-30 14:17 ` Anthony Liguori
2010-11-30 14:27 ` Avi Kivity
2010-11-30 14:50 ` Anthony Liguori
2010-12-01 12:40 ` Avi Kivity
2010-11-30 17:43 ` Juan Quintela
2010-12-01 1:20 ` Takuya Yoshikawa
2010-12-01 1:52 ` Juan Quintela
2010-12-01 2:22 ` Takuya Yoshikawa
2010-12-01 12:35 ` Avi Kivity
2010-12-01 13:45 ` Juan Quintela
2010-12-02 1:31 ` Takuya Yoshikawa
2010-12-02 8:37 ` Avi Kivity
2010-11-30 14:12 ` Paolo Bonzini
2010-11-30 15:00 ` Anthony Liguori
2010-11-30 17:59 ` Juan Quintela
2010-11-23 23:03 ` [Qemu-devel] [PATCH 10/10] Maintaing number of dirty pages Juan Quintela
[not found] ` <4CF45DE0.8020701@codemonkey.ws>
2010-11-30 14:46 ` [Qemu-devel] " Juan Quintela
2010-12-01 14:46 ` Avi Kivity
2010-12-01 15:51 ` Juan Quintela
2010-12-01 15:55 ` Anthony Liguori
2010-12-01 16:25 ` Juan Quintela
2010-12-01 16:33 ` Anthony Liguori
2010-12-01 16:43 ` Avi Kivity
2010-12-01 16:49 ` Anthony Liguori
2010-12-01 16:52 ` Avi Kivity
2010-12-01 16:56 ` Anthony Liguori
2010-12-01 17:01 ` Avi Kivity
2010-12-01 17:05 ` Anthony Liguori
2010-12-01 18:51 ` Juan Quintela
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