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builder: reduce # of subprocesses to N-1 for -jN, since the main process is also busy now

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This commit is contained in:
Georg Brandl 2013-01-14 08:35:41 +01:00
parent 5cd0841e5f
commit 3889a1158f
1 changed files with 5 additions and 2 deletions
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7
sphinx/builders/__init__.py
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@ -303,12 +303,15 @@ class Builder(object):
# (parallel only works on POSIX, because the forking impl of
# multiprocessing is required)
if not (multiprocessing and
self.app.parallel and
self.app.parallel > 1 and
self.allow_parallel and
os.name == 'posix'):
self._write_serial(sorted(docnames), warnings)
else:
self._write_parallel(sorted(docnames), warnings, self.app.parallel)
# number of subprocesses is parallel-1 because the main process
# is busy loading doctrees and doing write_doc_serialized()
self._write_parallel(sorted(docnames), warnings,
nproc=self.app.parallel - 1)
self.env.set_warnfunc(self.warn)
def _write_serial(self, docnames, warnings):