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SubjectRe: How to optimize routing performance
On Thu, Mar 15, 2001 at 11:17:19AM -0800, J Sloan wrote:
> Rik van Riel wrote:
> > On Thu, 15 Mar 2001, J Sloan wrote:
> >
> > > There are some scheduler patches that are not part of the
> > > main kernel tree at this point (mostly since they have yet to
> > > be optimized for the common case) which make quite a big
> > > difference under heavy load - you might want to check out:
> > >
> > > http://lse.sourceforge.net/scheduling/
> >
> > Unrelated. Fun, but unrelated to networking...
>
> under high load, where the sheer numbet of interrupts
> per second begins to overwhelm the kernel, might it
[snip]
> Or are you saying that the bottleneck is somewhere
> else completely, or that there wouldn't be a bottleneck
> in this case if certain kernel parameters were correctly
> set?

The scheduler schedules tasks not interrupts. Unless it manages to thrash the
cache, the scheduler can not affect routing performance.

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