RE: Intel DPDK vs Broadcom/Mellanox SDK

["McBride, Mack" <C-Mack.McBride () charter com>]

The Broadcom chips have some quirks that the Broadcom SDK handles and the DPDK does not.
Specifically related around port hang up after port flaps.
I am certain each chipset has quirks that are best handled by their SDK.
The vendor specific SDK is always going to work better with a their specific chipset.
That is just a given based on the vendor understanding their own chipset better.
But again for software switching other factors apply.

Mack

From: Kasper Adel [mailto:karim.adel () gmail com]
Sent: Tuesday, June 05, 2018 7:31 PM
To: McBride, Mack <C-Mack.McBride () charter com>
Cc: NANOG list <nanog () nanog org>
Subject: Re: Intel DPDK vs Broadcom/Mellanox SDK

Can you please provide examples on issues that you highlighted with broadcom? Are you saying i may not see the same 
with mellanox?

Thanks

On Monday, June 4, 2018, McBride, Mack <C-Mack.McBride () charter com<mailto:C-Mack.McBride () charter com>> wrote:
Use the package that corresponds to the chipset in your equipment.
Ie. Broadcom/Mellanox chips use that SDK.  Intel chips use DPDK.
With white box switches using Broadcom chips you will run into issues
If you don't use the Broadcom SDK.  Obviously your mileage will vary
based on the actual application.  If it isn't a hardware switch and is CPU based
like a home router, then there are a lot more factors and the CPU factors may
outweigh the chipset factors.  You may want to look at a list related to home
routers for more guidance.

Mack

-----Original Message-----
From: NANOG [mailto:nanog-bounces () nanog org<mailto:nanog-bounces () nanog org>] On Behalf Of Kasper Adel
Sent: Sunday, June 03, 2018 11:45 PM
To: NANOG list <nanog () nanog org<mailto:nanog () nanog org>>
Subject: Intel DPDK vs Broadcom/Mellanox SDK

Hi

Anothe email thread to get some guidance on points to consider when comparing new platforms that advocate using DPDK as 
the hardware acceleration SDK vs the broadcom/mellanox.

The DPDK ones claim enhanced performance but every time i ask questions, i get the logical and typical answer of “it 
depends”

Thx
Kim
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