On Wed, 2008-05-14 at 17:49 +0200, Tomasz Chmielewski wrote: > Dor Laor schrieb: > > (...) > > >> - PV Windows (network driver) > > > > About 700Mb+-, there is currently extra copy that we need to omit. > > Thanks for Anthony, we just have to change the driver. > > > >> - non-PV Windows > > > > What do you mean? Other fully emulated nics like e1000? > > It does not perform as pv but depending on the guest it can do up to > > 600Mb+-. > > Just generally, how Windows PV drivers help to improve network performance. > > So, a PV network driver can do about 700Mb/s, and an emulated NIC can do > about > 600 Mb/s, Windows guest to host? > > That would be about 20% improvement? > >
It's work in progress, doing zero copy in the guest, adding TSO, using virtio'd tap will drastically boot performance. There is no reason the performance won't match Linux guest. Also I don't exactly remember the numbers but the gain in the tx pass is grater. ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
