Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759622AbZDBDPd (ORCPT ); Wed, 1 Apr 2009 23:15:33 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753410AbZDBDPT (ORCPT ); Wed, 1 Apr 2009 23:15:19 -0400 Received: from rhun.apana.org.au ([64.62.148.172]:42346 "EHLO arnor.apana.org.au" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753194AbZDBDPS (ORCPT ); Wed, 1 Apr 2009 23:15:18 -0400 Date: Thu, 2 Apr 2009 11:15:04 +0800 From: Herbert Xu To: Rusty Russell Cc: ghaskins@novell.com, linux-kernel@vger.kernel.org, agraf@suse.de, pmullaney@novell.com, pmorreale@novell.com, anthony@codemonkey.ws, netdev@vger.kernel.org, kvm@vger.kernel.org Subject: Re: [RFC PATCH 00/17] virtual-bus Message-ID: <20090402031503.GA27930@gondor.apana.org.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200904011638.45135.rusty@rustcorp.com.au> Organization: Core X-Newsgroups: apana.lists.os.linux.kernel,apana.lists.os.linux.netdev User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 937 Lines: 22 Rusty Russell wrote: > > As you point out, 350-450 is possible, which is still bad, and it's at least > partially caused by the exit to userspace and two system calls. If virtio_net > had a backend in the kernel, we'd be able to compare numbers properly. FWIW I don't really care whether we go with this or a kernel virtio_net backend. Either way should be good. However the status quo where we're stuck with a user-space backend really sucks! Thanks, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt -- 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/