How To Test Infiniband bandwidth for SDP

Asset ID:	1-71-1963215.1
Update Date:	2018-04-13
Keywords:

Solution Type Technical Instruction Sure

Solution 1963215.1 : How To Test Infiniband bandwidth for SDP

Applies to:

Exalytics In-Memory Machine X2-4 - Version All Versions to All Versions [Release All Releases]
Exadata X3-2 Hardware - Version All Versions to All Versions [Release All Releases]
Information in this document applies to any platform.

Goal

How to test Infiniband SDP (sockets direct protocol) throughput?

Solution

Use qperf during off peak times.

1)start qperf server

edx42bur09db01# qperf

2) start qperf from the client side and use the IP of the server that is running qperf listener. edx42bur09db01 uses 192.168.9.202 for IB bond

edx42bur09cel02# qperf -m 1000000 192.168.9.202 sdp_bw
sdp_bw:
bw = 2.50 GB/sec <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<Unidirectional so about 5G Bytes/SEC in this case

Speeds can vary depending on how busy the Node CPU and IB fabric at the time of the testing. Test above was run on an idle fabric and nodes.

see qperf --help for more information and other test examples

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