From: Stefan Hajnoczi <stefanha@gmail.com>
To: martin@tuxadero.com
Cc: Dongsu Park <dongsu.park@profitbricks.com>,
kvm@vger.kernel.org, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] virtio-blk performance regression and qemu-kvm
Date: Tue, 28 Feb 2012 17:05:44 +0000 [thread overview]
Message-ID: <CAJSP0QXRsMFFa2KPvZ5rY_GUPbssh8Hyp2gitnTmcFxQvSz+5g@mail.gmail.com> (raw)
In-Reply-To: <4F4D035A.60107@tuxadero.com>
On Tue, Feb 28, 2012 at 4:39 PM, Martin Mailand <martin@tuxadero.com> wrote:
> I could reproduce it and I bisected it down to this commit.
>
> 12d4536f7d911b6d87a766ad7300482ea663cea2 is the first bad commit
> commit 12d4536f7d911b6d87a766ad7300482ea663cea2
> Author: Anthony Liguori <aliguori@us.ibm.com>
> Date: Mon Aug 22 08:24:58 2011 -0500
This seems strange to me.
What commit 12d4536f7 did was to switch to a threading model in
*qemu.git* that is similar to what *qemu-kvm.git* has been doing all
along.
That means the qemu-kvm binaries already use the iothread model. The
only explanation I have is that your bisect went down a qemu.git path
and you therefore tripped over this - but in practice it should not
account for a difference between qemu-kvm 0.14.1 and 1.0.
Can you please confirm that you are bisecting qemu-kvm.git and not qemu.git?
Stefan
next prev parent reply other threads:[~2012-02-28 17:06 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-10 14:36 [Qemu-devel] virtio-blk performance regression and qemu-kvm Dongsu Park
2012-02-12 23:55 ` Rusty Russell
2012-02-21 16:45 ` Dongsu Park
2012-02-21 22:16 ` Rusty Russell
2012-02-13 11:57 ` Stefan Hajnoczi
2012-02-21 15:57 ` Dongsu Park
2012-02-21 17:27 ` Stefan Hajnoczi
2012-02-22 16:48 ` Dongsu Park
2012-02-22 19:53 ` Stefan Hajnoczi
2012-02-28 16:39 ` Martin Mailand
2012-02-28 17:05 ` Stefan Hajnoczi [this message]
2012-02-28 17:15 ` Martin Mailand
2012-02-29 8:38 ` Stefan Hajnoczi
2012-02-29 13:12 ` Martin Mailand
2012-02-29 13:44 ` Stefan Hajnoczi
2012-02-29 13:52 ` Stefan Hajnoczi
2012-03-05 16:13 ` Martin Mailand
2012-03-05 16:35 ` Stefan Hajnoczi
2012-03-05 16:44 ` Martin Mailand
2012-03-06 12:59 ` Stefan Hajnoczi
2012-03-06 22:07 ` Reeted
2012-03-07 8:04 ` Stefan Hajnoczi
2012-03-07 14:21 ` Reeted
2012-03-07 14:33 ` Stefan Hajnoczi
2012-03-07 10:39 ` Martin Mailand
2012-03-07 11:21 ` Paolo Bonzini
2012-03-06 14:32 ` Dongsu Park
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