test_pendulum failing with nonsensical statistics on linux-aarch64

[rotu]

Bug report

Required Info:

• Operating System:
  • Jenkins Linux Arm64
• Installation type:
  • From Source
• Version or commit hash:
  • 9efc94fce1123870c9bad33c966a5d81c977826a
• DDS implementation:
  • OpenSplice
• Client library (if applicable):
  • N/A

Steps to reproduce issue

Run CI with OpenSplice

Expected behavior

Test "test_pendulum__rmw_opensplice_cpp" passes.

Actual behavior

Test fails and reports absurd statistics. Current latency is very high (1.7 seconds), mean latency is absurdly high (uninitialized memory?). Min latency is higher than max latency. Number of pagefaults is also absurd.

[INFO] [pendulum_demo-2]: process started with pid [55617]
[pendulum_demo-2] Couldn't set scheduling priority and policy: Operation not permitted
[pendulum_demo-2] mlockall failed: Cannot allocate memory
[pendulum_demo-2] Couldn't lock all cached virtual memory.
[pendulum_demo-2] Pagefaults from reading pages not yet mapped into RAM will be recorded.
[pendulum_logger-1] Logger node initialized.
[pendulum_logger-1] Commanded motor angle: 1.570796
[pendulum_logger-1] Actual motor angle: 1.561280
[pendulum_logger-1] Current latency: 1699557180 ns
[pendulum_logger-1] Mean latency: 4458224516038787409289673575093816669551304146650037671236339690561781237058564279746291212376660112936812899278369000229134709514347391053183640763362416971774278560649182152566312699581486525144027387385646723574136033038253156096752904762288198647808.000000 ns
[pendulum_logger-1] Min latency: 1835355439 ns
[pendulum_logger-1] Max latency: 1047684450 ns
[pendulum_logger-1] Minor pagefaults during execution: 8459008377404276325
[pendulum_logger-1] Major pagefaults during execution: 7237087991477200236
[pendulum_logger-1]

https://ci.ros2.org/job/ci_linux-aarch64/3926/testReport/junit/projectroot/test_pendulum__rmw_opensplice_cpp/test_pendulum__rmw_opensplice_cpp/

[rotu]

Discovered when doing PR ros2/rosidl_typesupport_opensplice#34
@clalancette

[rotu]

Woohoo! Thanks, @clalancette