"qperf" Sometimes Reports Lower Performance (Doc ID 1596463.1)

Last updated on DECEMBER 13, 2013

Applies to:

Linux OS - Version Oracle Linux 5.8 and later
Linux x86
Linux x86-64

Symptoms

"qperf", which is a tool to measure bandwidth and latency between two nodes, sometimes reports lower performance like below:

This typically occurs via fast network device, like 10 gigabit ethernet or Infiniband.

The command can be interrupted by pressing <ctrl> + <c> key combination.

 

Cause

Sign In with your My Oracle Support account

Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms