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Bug 1447133

Summary: [Doc] 0 packet loss could not be achieved with RHOS 10 [OVS 2.5.0.14]
Product: Red Hat OpenStack Reporter: Yariv <yrachman>
Component: openvswitchAssignee: Sandra McCann <samccann>
Status: CLOSED CURRENTRELEASE QA Contact: Yariv <yrachman>
Severity: high Docs Contact:
Priority: unspecified    
Version: 10.0 (Newton)CC: apevec, chrisw, ealcaniz, mburns, rhos-maint, samccann, srevivo, yrachman
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2017-06-28 19:25:13 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1443151    

Description Yariv 2017-05-01 21:45:18 UTC 
Description of problem:

RHOS GA released with OVS 2.5.0.14, this release was tested in RH,
O packet loss with non RT Kernel is not reached. [0.002 is reached]

Version-Release number of selected component (if applicable):

How reproducible:
Permanent 

Steps to Reproduce:
1. Deploy RHOS 10 with OVS-DPDK (2.5.0.14)
2. Consume tuned through RHOS repo in first-boot.yml
3. Install dpdk testpmd in the guest
4. Config Guest PMD threads
5. Manual emulator pin set to pCPU of Guest vCPU_0
6. Connect and run traffic generator.

Actual results:
0 packet loss gives very low results.
0.002 packet loss give good numbers for 1Q bidirectional traffic

Expected results:
0 packet loss numbers close to 0.002


Additional info:
1) Recommended to consume OVS 2.6 from Fast Data Path Beta channel and apply minor update.
2) RHOS 10 repo tuned rpms is enough for 7.3.z  Kernel under kernel-3.10.0-514.19.1
tuned-profiles-cpu-partitioning   2.7.1-5.el7fdp        rhelosp-10.0-puddle           
tuned-utils                       2.7.1-3.el7_3.1       rhelosp-rhel-7.3-server       

4) Computes with Cisco eNICs must be updated to OVS 2.6
Need special guide to do that. 

Please contact RHOS NFV PM for minor update procedure
Comment 4 Sandra McCann 2017-06-28 19:25:13 UTC 
Content published:

https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/10/html/network_functions_virtualization_configuration_guide/