When trying to limit the building threads with either colcon build --parallel-workers 2 or colcon build --executor sequential, the underlying make command is still called with the number of available threads.
In catkin build we had the --jobs and --parallel-packages parameters.
In colcon build the executor seems to be similar to the --parallel-packages parameter.
Desired behavior
--jobs parameter to catkin build
-j JOBS, --jobs JOBS Maximum number of build jobs to be distributed across active packages. (default is cpu count)
Possible workaround
Using export MAKEFLAGS="-j2" seems to limit the number of jobs per package
Other ideas are welcome, to the point of manually modifying the colcon_core/../build.py
christophebedard
commented
4 months ago
Issue
When trying to limit the building threads with either
colcon build --parallel-workers 2orcolcon build --executor sequential, the underlyingmakecommand is still called with the number of available threads.In
catkin buildwe had the--jobsand--parallel-packagesparameters.In
colcon buildthe executor seems to be similar to the--parallel-packagesparameter.Desired behavior
--jobsparameter tocatkin buildPossible workaround
Using
export MAKEFLAGS="-j2"seems to limit the number of jobs per packageOther ideas are welcome, to the point of manually modifying the colcon_core/../build.py