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bpo-31574: importlib dtrace (#3749)

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Importlib was instrumented with two dtrace probes to profile import timing.

Signed-off-by: Christian Heimes <christian@python.org>
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Christian Heimes 2017-09-30 00:53:19 +02:00 • committed by Łukasz Langa
parent 574562c5dd
commit 3d2b407da0
5 changed files with 28 additions and 0 deletions
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Doc/howto/instrumentation.rst
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@ -312,6 +312,17 @@ Available static markers
Fires when the Python interpreter finishes a garbage collection
cycle. ``arg0`` is the number of collected objects.
.. c:function:: import__find__load__start(str modulename)
Fires before :mod:`importlib` attempts to find and load the module.
``arg0`` is the module name.
.. c:function:: import__find__load__done(str modulename, int found)
Fires after :mod:`importlib`'s find_and_load function is called.
``arg0`` is the module name, ``arg1`` indicates if module was
successfully loaded.
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