Revert "lit: revert 134b103fc0f3a995d76398bf4b029d72bebe8162"

This reverts commit d319005a37.

Causing messages like:

  File "...\Python\Python39\lib\multiprocessing\connection.py", line 816, in _exhaustive_wait
    res = _winapi.WaitForMultipleObjects(L, False, timeout)
ValueError: need at most 63 handles, got a sequence of length 74
This commit is contained in:
Arthur Eubanks 2021-05-07 18:00:11 -07:00
parent d82bc9e81d
commit ddff81f692
1 changed files with 6 additions and 0 deletions
llvm/utils/lit/lit

View File

@ -119,6 +119,12 @@ def usable_core_count():
n = len(os.sched_getaffinity(0))
except AttributeError:
n = os.cpu_count() or 1
# On Windows, with more than 32 processes, process creation often fails with
# "Too many open files". FIXME: Check if there's a better fix.
if platform.system() == 'Windows':
return min(n, 32)
return n