From: Marc Zyngier <marc.zyngier@arm.com>
To: Pekka Enberg <penberg@kernel.org>
Cc: Sasha Levin <sasha.levin@oracle.com>,
Will Deacon <Will.Deacon@arm.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>
Subject: Re: [PATCH 0/5] Usual batch of random ARM fixes for kvmtool
Date: Fri, 12 Apr 2013 09:30:18 +0100 [thread overview]
Message-ID: <5167C61A.7030400@arm.com> (raw)
In-Reply-To: <5167AF3C.8060409@kernel.org>
Hi Pekka,
On 12/04/13 07:52, Pekka Enberg wrote:
> On 04/11/2013 12:36 PM, Will Deacon wrote:
>>> Without multi-queue, we can boot Debian Wheezy to a prompt in 38MB. With
>>> the new changes, that increases to 170MB! Any chance we can try and tackle
>>> this regression please? I keep getting bitten by the OOM killer :(
>
> On 04/11/2013 07:45 PM, Sasha Levin wrote:
>> That's definitely unwanted.
>>
>> I'll look into it and try sending something out today/tomorrow.
>
> That's very unfortunate. Can you please confirm that reverting commit
> e026314820acc3cc967308355f3746aca238fda4 ("kvm tools: virtio-net
> multiqueue support") fixes it? If fixing the issue turns out to be
> difficult, we should just take multi-queue out until the issues is resolved.
It does, at least for an MMIO based setup.
It would be a pity to completely loose the functionality though. Surely
we can find a way to initialize the extra queues on demand. And if not,
maybe introduce some kind of tunable parameter...
Cheers,
M.
--
Jazz is not dead. It just smells funny...
next prev parent reply other threads:[~2013-04-12 8:30 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-11 16:36 [PATCH 0/5] Usual batch of random ARM fixes for kvmtool Will Deacon
2013-04-11 16:36 ` [PATCH 1/5] kvm tools: arm: don't crash when no compatible CPU is found Will Deacon
2013-04-11 16:36 ` [PATCH 2/5] kvm tools: arm: add CPU compatible string to target structure Will Deacon
2013-04-11 16:36 ` [PATCH 3/5] kvm tools: arm: consolidate CPU node generation Will Deacon
2013-04-11 16:36 ` [PATCH 4/5] kvm tools: arm64: add support for AEM and Foundation models Will Deacon
2013-04-11 16:36 ` [PATCH 5/5] kvm tools: bump number of virtio MMIO vqueues Will Deacon
2013-04-11 16:45 ` [PATCH 0/5] Usual batch of random ARM fixes for kvmtool Sasha Levin
2013-04-12 6:52 ` Pekka Enberg
2013-04-12 8:30 ` Marc Zyngier [this message]
2013-04-12 8:50 ` Will Deacon
2013-04-11 20:02 ` virtio-net mq vq initialization (was: [PATCH 0/5] Usual batch of random ARM fixes for kvmtool) Sasha Levin
2013-04-12 11:36 ` Rusty Russell
2013-04-12 12:41 ` Will Deacon
2013-04-14 10:03 ` Michael S. Tsirkin
2013-04-13 21:23 ` virtio-net mq vq initialization Sasha Levin
2013-04-14 10:01 ` Michael S. Tsirkin
2013-04-14 15:16 ` Sasha Levin
2013-04-14 15:53 ` Michael S. Tsirkin
2013-04-14 15:59 ` Sasha Levin
2013-04-14 18:35 ` Michael S. Tsirkin
2013-04-15 2:55 ` Rusty Russell
2013-04-15 5:58 ` Jason Wang
2013-04-22 18:32 ` Sasha Levin
2013-04-12 7:12 ` [PATCH 0/5] Usual batch of random ARM fixes for kvmtool Pekka Enberg
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