netdev - Re: [PATCH v1] vhost: avoid large order allocations

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Date:	Tue, 13 May 2014 10:57:41 +0200
From:	Michael Mueller <mimu@...ux.vnet.ibm.com>
To:	"Michael S. Tsirkin" <mst@...hat.com>
Cc:	kvm@...r.kernel.org, virtualization@...ts.linux-foundation.org,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	borntraeger@...ibm.com, cornelia.huck@...ibm.com,
	ddongch@...ibm.com, mimu@...ux.vnet.ibm.com
Subject: Re: [PATCH v1] vhost: avoid large order allocations

On Tue, 13 May 2014 11:40:49 +0300
"Michael S. Tsirkin" <mst@...hat.com> wrote:

> Please dont' do this, extra indirection hurts performance.
> Instead, please change vhost_net_open and scsi to allocate the whole
> structure with vmalloc if kmalloc fails, along the lines of
> 74d332c13b2148ae934ea94dac1745ae92efe8e5

Thanks for pointing us to: net: extend net_device allocation to vmalloc()

We'll try to adapt.

Michael  

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