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| author | Antoine Pitrou <solipsis@pitrou.net> | 2011-01-06 16:35:14 (GMT) |
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| committer | Antoine Pitrou <solipsis@pitrou.net> | 2011-01-06 16:35:14 (GMT) |
| commit | 9f41bb325b4f5db695d1ea25649d1fd1e809b2bf (patch) | |
| tree | 766b705949641c4bebeabd6b9913f3f5fe27869d /Doc/library | |
| parent | 5047225baca0e6351c674e00cda396d16c4a07f1 (diff) | |
| download | cpython-9f41bb325b4f5db695d1ea25649d1fd1e809b2bf.zip cpython-9f41bb325b4f5db695d1ea25649d1fd1e809b2bf.tar.gz cpython-9f41bb325b4f5db695d1ea25649d1fd1e809b2bf.tar.bz2 | |
Merged revisions 87792 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k
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r87792 | antoine.pitrou | 2011-01-06 17:31:28 +0100 (jeu., 06 janv. 2011) | 3 lines
Elaborate about the GIL.
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Diffstat (limited to 'Doc/library')
| -rw-r--r-- | Doc/library/threading.rst | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Doc/library/threading.rst b/Doc/library/threading.rst index 142f1ec..4a6041f 100644 --- a/Doc/library/threading.rst +++ b/Doc/library/threading.rst @@ -26,11 +26,22 @@ The :mod:`dummy_threading` module is provided for situations where Starting with Python 2.5, several Thread methods raise :exc:`RuntimeError` instead of :exc:`AssertionError` if called erroneously. +.. impl-detail:: + + Due to the :term:`Global Interpreter Lock`, in CPython only one thread + can execute Python code at once (even though certain performance-oriented + libraries might overcome this limitation). + If you want your application to make better of use of the computational + resources of multi-core machines, you are advised to use + :mod:`multiprocessing`. However, threading is still an appropriate model + if you want to run multiple I/O-bound tasks simultaneously. + .. seealso:: Latest version of the `threading module Python source code <http://svn.python.org/view/python/branches/release27-maint/Lib/threading.py?view=markup>`_ + This module defines the following functions and objects: .. function:: active_count() |