[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-users] dom0 using only a single CPU (networking)
On Fri, Dec 19, 2008 at 10:31:54PM +0100, fabi.a169@xxxxxxxxx wrote: > I'm using a server with 10Gbps network interfaces and 4 CPUs, running > several domUs. The problem is that in this setup, with high network load, > dom0 turns out to be the bottleneck, using only a single CPU which is > saturated and 100%. So the network speed is bounded to much less than > 10Gbps. How could I make dom0 use more CPUs in parallel ? In short, you can't. The Linux network stack uses polling to handle high load, however this can only run on one CPU at a time. > If you have any idea, thank you for sharing your experience. What sort of service do you run which can fill a 10GBit connection and is able to be virtualized at the same time? Bastian -- The idea of male and female are universal constants. -- Kirk, "Metamorphosis", stardate 3219.8 _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
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