What people want is that, if cgroup limits prevent a container from using more than M/N of CPU time (N the number of cores), then GOMAXPROCS defaults to M. Ditto other managed language runtimes and their equivalent parameters.
However, as far as I can tell, there's no clear way to figure out what M is, in the general case.
However, as far as I can tell, there's no clear way to figure out what M is, in the general case.