Re: Current NBD 'stuff'

Paul Clements (kernel@steeleye.com)
Wed, 5 Dec 2001 17:30:46 -0500 (EST)


On Wed, 5 Dec 2001, Peter T. Breuer wrote:

> It strikes me that possibly you were using the 2.2 kernel.

Yes, the performance tests were on 2.2 -- and surely things have changed
in 2.4 -- most notably, as you mention, the request merging stuff.

> But in general I find that Enbd goes
> either at the speed of the net or at the speed of the remote disk,
> whichever is slower.

Well, that's as good as it gets. I had noticed that NBD on 2.2 was
also capable of writing at speeds just under the TCP bandwidth with
100Mb/s ethernet. (I wonder if it would scale nicely to 1Gb/s?)

--
Paul Clements
Paul.Clements@SteelEye.com

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