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From: Avi Kivity <avi@redhat.com>
To: Richard Davies <richard@arachsys.com>
Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org
Subject: Re: [Qemu-devel] Windows slow boot: contractor wanted
Date: Thu, 16 Aug 2012 14:39:57 +0300	[thread overview]
Message-ID: <502CDC0D.9080004@redhat.com> (raw)
In-Reply-To: <20120816104727.GA17166@alpha.arachsys.com>

On 08/16/2012 01:47 PM, Richard Davies wrote:
> Hi,
> 
> We run a cloud hosting provider using qemu-kvm 1.1, and are keen to find a
> contractor to track down and fix problems we have with large memory Windows
> guests booting very slowly - they can take several hours.
> 
> We previously reported these problems in July (copied below) and they are
> still present with Linux kernel 3.5.1 and qemu-kvm 1.1.1.
> 
> This is a serious issue for us which is causing significant pain to our
> larger Windows VM customers when their servers are offline for many hours
> during boot.
> 
> If anyone knowledgeable in the area would be interested in being paid to
> work on this, or if you know someone who might be, I would be delighted to
> hear from you.
> 

I happen to be gainfully employed but maybe I can help.  Can you collect
a trace during the slow boot period and post in somewhere?  See
http://www.linux-kvm.org/page/Tracing for instructions.

4G/8way is not a particularly large guest.  What is the host
configuration (memory, core count)?

-- 
error compiling committee.c: too many arguments to function

  reply	other threads:[~2012-08-16 11:40 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-16 10:47 [Qemu-devel] Windows slow boot: contractor wanted Richard Davies
2012-08-16 11:39 ` Avi Kivity [this message]
2012-08-17 12:36   ` Richard Davies
2012-08-17 13:02     ` Robert Vineyard
2012-08-18 14:44       ` Richard Davies
2012-08-19  5:02     ` Brian Jackson
2012-08-20  8:16       ` Richard Davies
2012-08-19  8:40     ` Avi Kivity
2012-08-19  8:51       ` Richard Davies
2012-08-19 14:04     ` Avi Kivity
2012-08-20 13:56       ` Richard Davies
2012-08-21  9:00         ` Avi Kivity
2012-08-21 15:21           ` Richard Davies
2012-08-21 15:39             ` Troy Benjegerdes
2012-08-22  9:08             ` Avi Kivity
2012-08-22 12:40               ` Richard Davies
2012-08-22 12:44                 ` Avi Kivity
2012-08-22 14:41                   ` Richard Davies
2012-08-22 14:53                     ` Avi Kivity
2012-08-22 15:26                       ` Richard Davies
2012-08-22 17:22                       ` Troy Benjegerdes
2012-08-25 17:51                         ` Richard Davies
2012-08-22 15:21                     ` Rik van Riel
2012-08-22 15:34                       ` Richard Davies
2012-08-25 17:45                       ` Richard Davies
2012-08-25 18:11                         ` Rik van Riel
2012-08-26 10:58                           ` Richard Davies
2012-09-06  9:20                             ` Richard Davies
2012-09-12 10:56                               ` [Qemu-devel] Windows VM slow boot Richard Davies
2012-09-12 12:25                                 ` Mel Gorman
2012-09-12 16:46                                   ` Richard Davies
2012-09-13  9:50                                     ` Mel Gorman
2012-09-13 19:47                                     ` [Qemu-devel] [PATCH 1/2] Revert "mm: have order > 0 compaction start near a pageblock with free pages" Rik van Riel
2012-09-13 19:48                                     ` [Qemu-devel] [PATCH 2/2] make the compaction "skip ahead" logic robust Rik van Riel
2012-09-13 19:54                                       ` [Qemu-devel] [PATCH -v2 " Rik van Riel
2012-09-15 15:55                                         ` Richard Davies
2012-09-16 19:12                                           ` Richard Davies
2012-09-17 12:26                                           ` Mel Gorman
2012-09-18  8:14                                             ` Richard Davies
2012-09-18 11:21                                               ` Mel Gorman
2012-09-18 17:58                                                 ` Richard Davies
2012-09-17 13:50                                           ` Rik van Riel
2012-09-17 14:07                                             ` Mel Gorman
2012-08-16 14:10 ` [Qemu-devel] Windows slow boot: contractor wanted Benoît Canet
2012-08-16 15:53 ` Troy Benjegerdes
2012-09-18 15:12 ` [Qemu-devel] Windows slow boot Michael Tokarev

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