Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755555AbZLWADr (ORCPT ); Tue, 22 Dec 2009 19:03:47 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755434AbZLWADq (ORCPT ); Tue, 22 Dec 2009 19:03:46 -0500 Received: from sous-sol.org ([216.99.217.87]:37574 "EHLO sequoia.sous-sol.org" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751488AbZLWADp (ORCPT ); Tue, 22 Dec 2009 19:03:45 -0500 Date: Tue, 22 Dec 2009 16:02:10 -0800 From: Chris Wright To: Anthony Liguori Cc: Andi Kleen , Gregory Haskins , Avi Kivity , Ingo Molnar , kvm@vger.kernel.org, Andrew Morton , torvalds@linux-foundation.org, "linux-kernel@vger.kernel.org" , netdev@vger.kernel.org, "alacrityvm-devel@lists.sourceforge.net" Subject: Re: [GIT PULL] AlacrityVM guest drivers for 2.6.33 Message-ID: <20091223000210.GA6518@sequoia.sous-sol.org> References: <4B2FA655.6030205@gmail.com> <4B2FAE7B.9030005@codemonkey.ws> <4B2FB3F1.5080808@gmail.com> <4B300EF8.8010602@codemonkey.ws> <87637zdy9g.fsf@basil.nowhere.org> <4B30E654.40702@codemonkey.ws> <20091222162110.GG10314@basil.fritz.box> <4B30F375.6050103@codemonkey.ws> <20091222173326.GH10314@basil.fritz.box> <4B3136AA.50204@codemonkey.ws> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4B3136AA.50204@codemonkey.ws> User-Agent: Mutt/1.5.19 (2009-01-05) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 853 Lines: 19 * Anthony Liguori (anthony@codemonkey.ws) wrote: > The > virtio-net setup probably made extensive use of pinning and other tricks > to make things faster than a normal user would see them. It ends up > creating a perfect combination of batching which is pretty much just > cooking the mitigation schemes to do extremely well for one benchmark. Just pinning, the rest is stock virtio features like mergeable rx buffers, GRO, GSO (tx mitigation is actually disabled). Certainly doesn't show throughput in terms of cpu cycle cost (scaling) nor latency per-packet (exit and mitigation). thanks, -chris -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/