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On Wed, Dec 10, 2008 at 10:54:54AM -0800, Joseph Mack NA3T wrote:
> On Wed, 10 Dec 2008, Dan Yocum wrote:
>
> >
> >
> > Joseph Mack NA3T wrote:
> >> On Wed, 10 Dec 2008, Arndt Roth wrote:
> >>
> >>> My questions is, if it is possible to bind each VS in ldirector to a
> >>> particular core and to a particular NIC for optimal perfomance?
>
> .
>
> > Au contraire. numactl can bind a process to a specific CPU and shared
> > memory space.
>
> my mistake. I thought he asked if it was a good idea.
>
> You can bind an application to a cpu. Can you bind a kernel
> process like ip_vs() to a cpu?
IPVS is not a kernel process. It is part of the core kernel.
And it runs on multiple cores, just as the rest of the core kernel does
- assuming an SMP kernel.
As IPVS acts on packets, and packets come from network interfaces
(usually), some control over which CPU ip_vs is executing on can
be had by setting the affinity of a particular interface (PCI device)
for to a core.
--
Simon Horman
VA Linux Systems Japan K.K., Sydney, Australia Satellite Office
H: www.vergenet.net/~horms/ W: www.valinux.co.jp/en
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