DPDK: Low TCP throughput when non-DPDK VM running on DPDK compute

Bug #1618595 reported by amit surana
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Juniper Openstack
Status tracked in Trunk
R3.1
Won't Fix
Medium
Raja Sivaramakrishnan
R3.2
Won't Fix
High
Raja Sivaramakrishnan
Trunk
Fix Committed
High
amit surana

Bug Description

TCP throughput from guest VM: 11Gbps (corresponding kernel mod: 20Gbps)
TCP throughput via VNF (service-chain): 3Gbps (corresponding kernel mod: 7Gbps)

TX errors are seen incrementing on tap interfaces.

amit surana (asurana-t)
tags: added: performance
Revision history for this message
Raja Sivaramakrishnan (raja-u) wrote :

This should be fixed in 4.0 with the GRO/GSO changes. Can you please verify?

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