From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dor Laor Subject: Re: [PATCH] e1000 emulation code Date: Thu, 10 Jan 2008 13:27:29 +0200 Message-ID: <1199964449.3274.9.camel@localhost.localdomain> References: <1199896975.4382.31.camel@localhost.localdomain> <200801092308.46482.javier@guerrag.com> Reply-To: dor.laor-atKUWr5tajBWk0Htik3J/w@public.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org, ir Peleg , qemu-devel To: Javier Guerra Giraldez Return-path: In-Reply-To: <200801092308.46482.javier-796Irmz5ZkZBDgjK7y7TUQ@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: kvm.vger.kernel.org On Wed, 2008-01-09 at 23:08 -0500, Javier Guerra Giraldez wrote: > On Wednesday 09 January 2008, Dor Laor wrote: > > Some figures: Linux rx 350Mbps, tx 150bps, Windows rx 700mbps, tx 100 mbps. > > very nice! > > in a related note, the VMWare tools package, which is supposed to 'enhance > performance' by installing 'specially tuned' drivers into a guest, doesn't > include net or HD drivers for linux! i was surprised, but it simply said Vmware has a nice trick to online change an emulated amd nic into a pv mode nic. > that using e1000 emulation on 64bit linux was optimised enough. since i saw > good performance (no hard benchmarks, but definitely not bad); i thought that > they do some paravirtualizification at runtime as part of their software > recompiling (because they're much older than HVM-capable processors). > > now it seems that there are higher-level hardware that can be emulated far > more efficiently than the original set of QEMU hardware. This is just a newer device with some coalescing abilities and tso, pv driver can always be better since they are not bound to any specification. btw: I wonder when qemu will get virtio drivers. > > the next step would be to emulate LSI SCSI chips, eh? > ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace