I've not done any benchmarks, but I do pay attention to resource usage. (Host OS linux) -net user has pretty good thoughput, but does burn some cpu. I think in that regard, -net tap has less overhead. During my use of qemu, I've noticed that the quality of the nic driver and the nic emulation itself comes into play. I would try the differnet models and see. -net nic,model=pcnet always seemed like it performed well. YOMV.
WD On 9/14/06, Joseph Miller <[EMAIL PROTECTED]> wrote:
I'm running a terminal server under qemu with kqemu compiled into my kernel under the -kernel-kqemu for fastest performance. What is the most efficient method of -net ? I was using -net user with OpenVPN to connect to my internal LAN, but I have switched to -net tap to see if that is faster. Does anyone have any knowledge of which would take the least overhead? I noticed on my top stats that my % sys was particularly high when using networking under -net user. Thanks -Joseph _______________________________________________ Qemu-devel mailing list Qemu-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/qemu-devel
-- 22:38 <@WaxDragon> false ^ true 22:39 < false> :( 22:39 < false> dont you think you can XOR me and get away with it! I always return! _______________________________________________ Qemu-devel mailing list Qemu-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/qemu-devel
