Confusion about `per` documentation

[DanielDoehring]

I am a bit confused by the documentation of the per option:

The per keyword argument can be used to limit the number of Julia threads to be used by a @batch block. Specifically, per=core will use only max(num_cores, nthreads()) many of the Julia threads.

My understanding of this is the following:

The per keyword argument can be used to limit the number of Julia threads to be used by a @batch block. Specifically, per=core will use only min(num_cores, nthreads()) many of the Julia threads.

What is correct?