DPDK and energy efficiency

Tue Feb 23 16:59:37 UTC 2021

For use cases where DPDK matters, are you really concerned with power
consumption?

On Tue, Feb 23, 2021 at 11:48 AM Nick Hilliard <nick at foobar.org> wrote:

> Etienne-Victor Depasquale wrote on 23/02/2021 16:03:
> > "we found that a poll mode driver (PMD)
> > thread accounted for approximately 99.7 percent
> > CPU occupancy (a full core utilization)."
>
> interrupt-driven network drivers generally can't compete with polled
> mode drivers at higher throughputs on generic CPU / PCI card systems.
> On this style of config, you optimise your driver parameters based on
> what works best under the specific conditions.
>
> Polled mode drivers have been around for a while, e.g.
>
> > https://svnweb.freebsd.org/base?view=revision&revision=87902
>
> Nick
>
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