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Xen emulated network cards (was Re: FreeBSD HVM guests?)
On Tue, 12 May 2009, Christoph Egger wrote:
In your experience, is the slowdown due to HVM unnaceptable? Out of
curiosity, could the ne2000 emulated device saturate even a 100mbit link
(I'm running on gigabit) ?
in the vif line to get an emulated Intel e1000 device.
This chip features highlevel commands whichs makes its emulation
cheaper from performance point of view.
vif = [ 'bridge=bridge0, type=ioemu, model=e1000' ]
But the domain does not start up and I get "qemu: Unsupported NIC: e1000"
I guess this is because I am using xen 3.1.4 (due to a need to run i386
dom0 on 5.0).
The qemu 0.9.1 man page says:
Qemu can emulate several different models of network card. Valid values for
type are "i82551", "i82557b", "i82559er", "ne2k_pci", "ne2k_isa", "pcnet",
"rtl8139", "smc91c111", "lance" and "mcf_fec".
I guess any of these are potential alternatives to e1000 on xen 3.1.4, but
are any of them any better than ne2k_pci?
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