mirror of https://github.com/python/cpython
Merge 3.5
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commit
771cf898f4
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@ -66,7 +66,7 @@ Example of output of the Python test suite::
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<string>:5: size=49.7 KiB, count=148, average=344 B
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/usr/lib/python3.4/sysconfig.py:411: size=48.0 KiB, count=1, average=48.0 KiB
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We can see that Python loaded ``4.8 MiB`` data (bytecode and constants) from
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We can see that Python loaded ``4855 KiB`` data (bytecode and constants) from
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modules and that the :mod:`collections` module allocated ``244 KiB`` to build
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:class:`~collections.namedtuple` types.
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@ -106,8 +106,8 @@ Example of output before/after running some tests of the Python test suite::
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/usr/lib/python3.4/urllib/parse.py:476: size=71.8 KiB (+71.8 KiB), count=969 (+969), average=76 B
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/usr/lib/python3.4/contextlib.py:38: size=67.2 KiB (+67.2 KiB), count=126 (+126), average=546 B
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We can see that Python has loaded ``8.2 MiB`` of module data (bytecode and
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constants), and that this is ``4.4 MiB`` more than had been loaded before the
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We can see that Python has loaded ``8173 KiB`` of module data (bytecode and
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constants), and that this is ``4428 KiB`` more than had been loaded before the
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tests, when the previous snapshot was taken. Similarly, the :mod:`linecache`
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module has cached ``940 KiB`` of Python source code to format tracebacks, all
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of it since the previous snapshot.
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@ -176,7 +176,7 @@ Example of output of the Python test suite (traceback limited to 25 frames)::
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"__main__", fname, loader, pkg_name)
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We can see that the most memory was allocated in the :mod:`importlib` module to
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load data (bytecode and constants) from modules: ``870 KiB``. The traceback is
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load data (bytecode and constants) from modules: ``870.1 KiB``. The traceback is
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where the :mod:`importlib` loaded data most recently: on the ``import pdb``
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line of the :mod:`doctest` module. The traceback may change if a new module is
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loaded.
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@ -192,12 +192,12 @@ ignoring ``<frozen importlib._bootstrap>`` and ``<unknown>`` files::
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import os
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import tracemalloc
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def display_top(snapshot, group_by='lineno', limit=10):
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def display_top(snapshot, key_type='lineno', limit=10):
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snapshot = snapshot.filter_traces((
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tracemalloc.Filter(False, "<frozen importlib._bootstrap>"),
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tracemalloc.Filter(False, "<unknown>"),
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))
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top_stats = snapshot.statistics(group_by)
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top_stats = snapshot.statistics(key_type)
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print("Top %s lines" % limit)
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for index, stat in enumerate(top_stats[:limit], 1):
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@ -468,12 +468,12 @@ Snapshot
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The :func:`take_snapshot` function creates a snapshot instance.
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.. method:: compare_to(old_snapshot: Snapshot, group_by: str, cumulative: bool=False)
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.. method:: compare_to(old_snapshot: Snapshot, key_type: str, cumulative: bool=False)
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Compute the differences with an old snapshot. Get statistics as a sorted
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list of :class:`StatisticDiff` instances grouped by *group_by*.
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list of :class:`StatisticDiff` instances grouped by *key_type*.
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See the :meth:`Snapshot.statistics` method for *group_by* and *cumulative*
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See the :meth:`Snapshot.statistics` method for *key_type* and *cumulative*
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parameters.
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The result is sorted from the biggest to the smallest by: absolute value
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@ -511,13 +511,13 @@ Snapshot
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See also :meth:`dump`.
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.. method:: statistics(group_by: str, cumulative: bool=False)
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.. method:: statistics(key_type: str, cumulative: bool=False)
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Get statistics as a sorted list of :class:`Statistic` instances grouped
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by *group_by*:
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by *key_type*:
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===================== ========================
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group_by description
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key_type description
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===================== ========================
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``'filename'`` filename
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``'lineno'`` filename and line number
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@ -526,7 +526,7 @@ Snapshot
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If *cumulative* is ``True``, cumulate size and count of memory blocks of
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all frames of the traceback of a trace, not only the most recent frame.
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The cumulative mode can only be used with *group_by* equals to
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The cumulative mode can only be used with *key_type* equals to
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``'filename'`` and ``'lineno'``.
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The result is sorted from the biggest to the smallest by:
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