Admittedly I haven’t profiled this yet, but my guess is it is a constant overhead of setting up pkg_resources that the native code uses to load the entry point.

Admittedly I haven’t profiled this yet, but my guess is it is a constant overhead of setting up pkg_resources that the native code uses to load the entry point. The test against native start speed was hot, so the pages required were already in the page cache, so the filesystem shouldn’t matter.