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Date: Tue, 22 Dec 2009 17:21:10 +0100 From: Andi Kleen <andi@...stfloor.org> To: Anthony Liguori <anthony@...emonkey.ws> Cc: Andi Kleen <andi@...stfloor.org>, Gregory Haskins <gregory.haskins@...il.com>, Avi Kivity <avi@...hat.com>, Ingo Molnar <mingo@...e.hu>, kvm@...r.kernel.org, Andrew Morton <akpm@...ux-foundation.org>, torvalds@...ux-foundation.org, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, netdev@...r.kernel.org, "alacrityvm-devel@...ts.sourceforge.net" <alacrityvm-devel@...ts.sourceforge.net> Subject: Re: [GIT PULL] AlacrityVM guest drivers for 2.6.33 > So far, the only actual technical advantage I've seen is that vbus avoids > EOI exits. The technical advantage is that it's significantly faster today. Maybe your proposed alternative is as fast, or maybe it's not. Who knows? > We think we understand why vbus does better than the current userspace > virtio backend. That's why we're building vhost-net. It's not done yet, > but our expectation is that it will do just as well if not better. That's the vapourware vs working code disconnect I mentioned. One side has hard numbers&working code and the other has expectations. I usually find it sad when the vapourware holds up the working code. -Andi -- ak@...ux.intel.com -- Speaking for myself only. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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