DPDK and energy efficiency

Jared Geiger jared at compuwizz.net
Mon Feb 22 19:46:48 UTC 2021

DANOS lets you specify how many dataplane cores you use versus control
plane cores. So if you put a 16 core host in to handle 2GB of traffic, you
can adjust the dataplane worker cores as needed. Control plane cores don't
stay at 100% utilization.

I use that technique plus DANOS runs on VMware (not oversubscribed) which
allows me to use the hardware for other VMs. NICS are attached to the VM
via PCI Passthrough which helps eliminate the overhead to the VMware
hypervisor itself.

I have an 8 core VM with 4 cores set to dataplane and 4 to control plane.
The 4 control plane cores are typically idle only processing BGP route
updates, SNMP, logs, etc.


On Sun, Feb 21, 2021 at 11:30 PM Etienne-Victor Depasquale <edepa at ieee.org>

> Hello folks,
> I've just followed a thread regarding use of CGNAT and noted a suggestion
> (regarding DANOS) that includes use of DPDK.
> As I'm interested in the breadth of adoption of DPDK, and as I'm a
> researcher into energy and power efficiency, I'd love to hear your feedback
> on your use of power consumption control by DPDK.
> I've drawn up a bare-bones, 2-question survey at this link:
> https://www.surveymonkey.com/r/J886DPY.
> Responses have been set to anonymous.
> Cheers,
> Etienne
> --
> Ing. Etienne-Victor Depasquale
> Assistant Lecturer
> Department of Communications & Computer Engineering
> Faculty of Information & Communication Technology
> University of Malta
> Web. https://www.um.edu.mt/profile/etiennedepasquale
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.nanog.org/pipermail/nanog/attachments/20210222/a33380fd/attachment.html>

More information about the NANOG mailing list