Low iperf throughput VM to VM
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Fuel for OpenStack |
Fix Committed
|
High
|
Serg Melikyan |
Bug Description
Detailed bug description:
Using two ubuntu14.04 VMs on one compute node I see very low TCP performance between the two VMs.
Steps to reproduce:
VM2# iperf -s
VM1# iperf <ip_addr VM1>
Expected results:
Would expect results of 4-5Gbps
Actual result:
Seeing results of < 1Gbps
Reproducibility:
<put your information here>
Workaround:
By replicating the basics of the setup on a separate
Impact:
Very poor network performance for VMs
Description of the environment:
* Fuel@OPNFV Colorado SR3.0.
* DPDK-enabled private network NICs on compute node and OVS-DPDK plugin enabled (configuration DPDK=selected, NSH=not selected)
* VMs are ubuntu 14.04
* VLAN network segmentation
* Compute node 28 core 2 Numa Node Intel(R) Xeon(R) CPU E5-2695 v3 @ 2.30GHz (or similar).
Additional information:
After recreating on a development environment - ie using OVS2.6.1 and QEMU2.5 it was discovered that if OVS was compiled with DPDK16.11 instead of 16.07 the iperf TCP performance was 4-5Gbps.
Changed in fuel: | |
assignee: | nobody → Serg Melikyan (smelikyan) |
milestone: | none → 9.x-updates |
Changed in fuel: | |
status: | New → Confirmed |
importance: | Undecided → High |
Hi Billey, what version of Fuel do you use?