From: Peter Lieven <lieven-lists@dlhnet.de>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Peter Lieven <pl@dlhnet.de>, Stefan Hajnoczi <stefanha@gmail.com>,
qemu-devel@nongnu.org, Alexandre DERUMIER <aderumier@odiso.com>,
Davide Guerri <d.guerri@unidata.it>,
Jan Kiszka <jan.kiszka@web.de>,
Dietmar Maurer <dietmar@proxmox.com>
Subject: Re: [Qemu-devel] slow virtio network with vhost=on and multiple cores
Date: Mon, 25 Mar 2013 14:34:57 +0100 [thread overview]
Message-ID: <51505281.2090108@dlhnet.de> (raw)
In-Reply-To: <20130318095308.GD5267@redhat.com>
On 18.03.2013 10:53, Michael S. Tsirkin wrote:
> Do you see all interrupts going to the same CPU? If yes is
> irqbalance in guest running?
I had the same issue today. Problem is irqs are going to all vCPUs. If the smp_affinity is set to one CPU only
performance is OK. irqbalance is running, but it doesn't matter.
Peter
next prev parent reply other threads:[~2013-03-25 13:35 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-05 11:51 [Qemu-devel] slow virtio network with vhost=on and multiple cores Dietmar Maurer
2012-11-05 12:36 ` Stefan Hajnoczi
2012-11-05 15:01 ` Dietmar Maurer
2012-11-06 6:12 ` Dietmar Maurer
2012-11-06 7:46 ` Peter Lieven
2012-11-06 7:51 ` Dietmar Maurer
2012-11-06 9:01 ` Dietmar Maurer
2012-11-06 9:26 ` Jan Kiszka
2012-11-06 9:46 ` Dietmar Maurer
2012-11-06 10:12 ` Jan Kiszka
2012-11-06 11:24 ` Dietmar Maurer
2012-11-08 9:39 ` Jan Kiszka
2012-11-08 10:55 ` Peter Lieven
2012-11-08 12:03 ` Dietmar Maurer
2012-11-08 15:02 ` Peter Lieven
2012-11-09 5:55 ` Dietmar Maurer
2012-11-09 17:27 ` Peter Lieven
2012-11-09 17:51 ` Peter Lieven
2012-11-09 18:03 ` Peter Lieven
2012-11-13 11:44 ` Peter Lieven
2012-11-13 11:49 ` Peter Lieven
2012-11-13 16:22 ` Michael S. Tsirkin
2012-11-13 16:21 ` Peter Lieven
2012-11-13 16:26 ` Michael S. Tsirkin
2012-11-13 16:27 ` Peter Lieven
2012-11-13 16:59 ` Dietmar Maurer
2012-11-13 17:03 ` Michael S. Tsirkin
2012-11-13 16:33 ` Michael S. Tsirkin
2012-11-13 16:35 ` Peter Lieven
2012-11-13 16:46 ` Michael S. Tsirkin
2012-11-13 17:03 ` Dietmar Maurer
2012-11-13 17:07 ` Michael S. Tsirkin
2012-11-13 17:38 ` Dietmar Maurer
2012-11-15 18:26 ` Peter Lieven
2012-11-16 10:44 ` Dietmar Maurer
2012-11-16 11:00 ` Alexandre DERUMIER
2012-12-03 11:23 ` Peter Lieven
2012-12-09 18:38 ` Alexandre DERUMIER
2013-03-14 9:22 ` Davide Guerri
2013-03-14 10:43 ` Alexandre DERUMIER
2013-03-14 17:50 ` Michael S. Tsirkin
2013-03-14 18:15 ` Davide Guerri
2013-03-14 18:21 ` Peter Lieven
2013-03-14 23:04 ` Davide Guerri
2013-03-15 7:23 ` Peter Lieven
2013-03-17 9:08 ` Michael S. Tsirkin
2013-03-18 9:50 ` Alexandre DERUMIER
2013-03-18 9:53 ` Michael S. Tsirkin
2013-03-25 13:34 ` Peter Lieven [this message]
2012-11-19 13:49 ` Peter Lieven
2012-11-06 6:48 ` Dietmar Maurer
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