[ovs-discuss] Is running vswitchd of dpdk-ovs as secondary process?

Kavanagh, Mark B mark.b.kavanagh at intel.com
Mon Jul 10 09:32:20 UTC 2017

>From: ovs-discuss-bounces at openvswitch.org [mailto:ovs-discuss-
>bounces at openvswitch.org] On Behalf Of Heung Sik Choi
>Sent: Wednesday, July 5, 2017 6:06 AM
>To: ovs-discuss at openvswitch.org
>Subject: [ovs-discuss] Is running vswitchd of dpdk-ovs as secondary process?
>I've used dpdk-ovs and studied it. Recently I came to know that DPDK
>applications can be run as primary or secondary process.

Hi Heung,

DPDK applications may be run as a secondary process if, and only if, there is already a DPDK primary process running. The primary process has responsibility for allocating memory from hugepages for DPDK applications, which the secondary process(es) may also lookup and use. Note that there are no secondary DPDK processes in OvS-DPDK.

Hope this clears things up,

>So, I'm wondering if there is secondary process when ovs-dpdk is run.
>Especially, is ovs-vswitchd run as secondary process?
>Please let me know if you have any insights.

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