Tomoya Fujita

@apockill friendly ping.

@apockill unfortunately we are still having issue mentioned on https://github.com/ros2/rclpy/pull/899#issuecomment-1078521545

after DCO is fixed, i will retest with CI.

DCO error tells that https://github.com/ros2/rclpy/pull/899/commits/392416d60edea5b20aebadb069010b674a99a5a8 has been committed by Alex Thiel but Alex Thiel . so changing this commit with Alex Thiel singed-off-by should fix the problem.

> The cpu usage is high even when it is an empty node where no timer exists. When we use rosbridge of ROS2, the CPU is dramaticly high (over 100%)...

this cannot be observed with https://github.com/ros2/ros2/commit/077c53b9a27100bcb4e3ec94549d5a9e6690fea5. @Hercogs can you try with `export RMW_IMPLEMENTATION=rmw_cyclonedds_cpp` before starting node, to see if you can still see the problem?

Or probably the event is not taken from the queue, so that it re-takes the previous event. @MiguelCompany this has been fixed in master, do you have any idea which...

### Reproducible Sample - How to build ```bash > cd /src > git clone [email protected]:fujitatomoya/ros2_test_prover.git > cd > colcon build --symlink-install --packages-select prover_rclpy prover_rclpy > source install/local_setup.bash ``` - `use_sim_time`...

CC: @wjwwood @clalancette

i think this is a bug and your suggested fix seems reasonable to me. if you are willing to address the fix and test, i am happy to do the...