Hi,

When I run the Python test suite with "./python -m test -j0 -rW",  test_multiprocessing_spawn is almost the latest one to run. Example:
---
(...)
[399/401/1] test_lib2to3 (68 sec) -- running: test_zipfile (43 sec), test_multiprocessing_spawn (484 sec)
[400/401/1] test_zipfile (45 sec) -- running: test_multiprocessing_spawn (488 sec)
^C
Waiting for test_multiprocessing_spawn

Test suite interrupted by signal SIGINT.
1 test omitted:
    test_multiprocessing_spawn
(...)
---

Would it be possible to make it faster? Skip some tests? I don't know.