linux-kernel - Re: [PATCH RFC] virtio_blk: Use blk-iopoll for host->guest notify

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Date:	Tue, 18 May 2010 15:07:13 +0200
From:	Jens Axboe <qemu@...nel.dk>
To:	Stefan Hajnoczi <stefanha@...ux.vnet.ibm.com>
Cc:	Brian Jackson <iggy@...iggy.com>,
	virtualization@...ts.linux-foundation.org,
	Rusty Russell <rusty@...tcorp.com.au>,
	linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
	qemu-devel@...gnu.org
Subject: Re: [PATCH RFC] virtio_blk: Use blk-iopoll for host->guest notify

On Tue, May 18 2010, Stefan Hajnoczi wrote:
> On Fri, May 14, 2010 at 05:30:56PM -0500, Brian Jackson wrote:
> > Any preliminary numbers? latency, throughput, cpu use? What about comparing 
> > different "weights"?
> 
> I am running benchmarks and will report results when they are in.

I'm very interested as well, I have been hoping for some more adoption
of this. I have mptsas and mpt2sas patches pending as well.

I have not done enough and fully exhaustive weight analysis, so note me
down for wanting such an analysis on virtio_blk as well.

-- 
Jens Axboe

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