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Issue #18874: Implement the PEP 454 (tracemalloc)

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Victor Stinner 2013-11-23 12:27:24 +01:00
parent 0fb6072fad
commit ed3b0bca3e
17 changed files with 4024 additions and 15 deletions
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18
Doc/using/cmdline.rst
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@ -376,11 +376,15 @@ Miscellaneous options
.. cmdoption:: -X
Reserved for various implementation-specific options. CPython currently
defines two possible values:
defines the following possible values:
* ``-X faulthandler`` to enable :mod:`faulthandler`;
* ``-X showrefcount`` to enable the output of the total reference count
and memory blocks (only works on debug builds);
* ``-X tracemalloc`` to enable :mod:`tracemalloc`.
* ``-X tracemalloc=NFRAME`` to enable :mod:`tracemalloc`, *NFRAME* is the
maximum number of frames stored in a trace: see the
:func:`tracemalloc.set_traceback_limit` function.
It also allows to pass arbitrary values and retrieve them through the
:data:`sys._xoptions` dictionary.
@ -392,7 +396,7 @@ Miscellaneous options
The ``-X faulthandler`` option.
.. versionadded:: 3.4
The ``-X showrefcount`` option.
The ``-X showrefcount`` and ``-X tracemalloc`` options.
Options you shouldn't use
@ -594,6 +598,16 @@ conflict.
.. versionadded:: 3.3
.. envvar:: PYTHONTRACEMALLOC
If this environment variable is set to a non-empty string, all memory
allocations made by Python are traced by the :mod:`tracemalloc` module.
The value of the variable is the maximum number of frames stored in a trace:
see the :func:`tracemalloc.set_traceback_limit` function.
.. versionadded:: 3.4
Debug-mode variables
~~~~~~~~~~~~~~~~~~~~