From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <371bee37a941420e21ffaf97c5e192b7@quanstro.net> To: 9fans@9fans.net From: erik quanstrom Date: Wed, 23 Apr 2008 20:29:54 -0400 In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] new lguest port available Topicbox-Message-UUID: 992e4c4c-ead3-11e9-9d60-3106f5b1d025 >> just put it up on a tee: why not use aoe? >> > > The problems of disk I/O are largely a focus issue -- all this stuff > is pretty new and they focused on the network mechanisms first because > those were the ones where the competition has published the most > compelling benchmarks. The disk stuff will get tuned out and will > likely outperform network for I/O. As an example, 9P directly over > virtio beats NFS/TCP/virtio-net by 70% without cacheing or > optimization in 9P (which is usually the opposite case on > unvirtualized hardware due to cacheing and what not). i wouldn't think that you could tune out rotational latency. 8.4ms is pretty much forever when you're counting nanoseconds. since aoe can do wirespeed (120ms/s) on typical physical gige chipsets i would think it would have no trouble keeping up with spinning media. especially when not handicapped by having to actually stuff bits through a phy. - erik