Re: [Nbd] NBD vs iSCSI performance?
On Tue, 2007-05-22 at 21:36 +0200, Tomasz Chmielewski wrote:
> Ming Zhang schrieb:
> > On Wed, 2007-05-16 at 13:39 +0200, Tomasz Chmielewski wrote:
> >> I was wondering if anyone ever did a performance comparison of NBD
> >> versus iSCSI?
> >
> > with reasonable HW, u should not see much difference here. iscsi does
> > take more cpu (add some latency) because of protocol overhead, other
> > than that, no difference.
>
> Hmm, if NBD has less overhead, and iSCSI takes more CPU, NBD could be a
> good alternative - for example, for my poor underpowered-but-overloaded
> ARM box :)
it really depends on what you want to achieve. no one fits all.
>
> But since NBD doesn't handle disconnections at all, it's not really a
> good alternative for some more serious usage IMO.
>
>
then why u need to run serious io on an arm box? ;)
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