Version Support: ROS2 Crystal, Fast-RTPS 1.7.0
This test allows you to test performance and latency of various communication means like ROS 2, FastRTPS and Connext DDS Micro.
It can be extended to other communication frameworks easily.
A detailed description can be found here: Design Article
Building and running performance test
Generating graphical plots
The script which generates the graphical plots needs matplotlib and pandas:
sudo apt-get install python-matplotlib python-pip pip install pandas
How to build and run
source ros2_install_path/setup.bash mkdir -p perf_test_ws/src cd perf_test_ws/src git clone https://github.com/ApexAI/performance_test.git cd .. colcon build --cmake-args -DCMAKE_BUILD_TYPE=Release source install/setup.bash ros2 run performance_test perf_test --help
After building, a simple experiment can be run using the following.
Before you start please create a directory for the output.
mkdir experiment cd experiment
then run the test.
ros2 run performance_test perf_test -c ROS2 -l log -t Array1k --max_runtime 10
The generated log-files can then be plotted into a PDF file using:
ros2 run performance_test performance_test_file_reader.py .
Batch run experiments (for advanced users)
Multiple experiments can be run using the following command:
You need to edit the python script to call the performance test tool with the desired parameters.
Testing latency between multiple machines is difficult as it is hard precisely synchronize clocks between them. To overcome this issue performance test supports relay mode which allows for a round-trip style of communication.
On the main machine:
ros2 run performance_test perf_test -c ROS2 -t Array1k --roundtrip_mode Main
On the relay machine:
ros2 run performance_test perf_test -c ROS2 -t Array1k --roundtrip_mode Relay
Note that on the main machine the round trip latency is reported and will be roughly double the latency compared to the latency reported in non-relay mode.
You can use OSRF memory tools to find memory allocations in your application. To enable it you need to do the following steps, assuming you already did compile performance test before:
- Enter your work space:
- Clone OSRF memory memory tools:
git clone https://github.com/osrf/osrf_testing_tools_cpp.git
- Build everything
cd .. && ament build --parallel --build-tests --cmake-args -DCMAKE_BUILD_TYPE=Release
- You need to preload the memory library to make diagnostics work:
- Run with memory check enabled:
ros2 run performance_test perf_test -c ROS2 -l log -t Array1k --max_runtime 10 --check_memory
Note that enabling this feature will cause a huge performance impact.
Custom environment data
You can set the
APEX_PERFORMANCE_TEST environment variable before running performance test
to add custom data to the output CSV file.
This information will then also be visible in the files outputted by the plotter script.
export APEX_PERFORMANCE_TEST=" My Version: 1.0.4 My Image Version: 5.2 My OS Version: Ubuntu 16.04 " ros2 run performance_test -c ROS2 -t Array1k
- When running performance test it prints
ERROR: You must compile with FastRTPS support to enable FastRTPS as communication mean.
You need to build with
--cmake-args -DPERFORMANCE_TEST_FASTRTPS_ENABLED=ON to switch from ROS 2 to FastRTPS.
- FastRTPS waitset does not support a timeout which can lead to the receiving not aborting. In that case the performance test must be manually killed.