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| author | Christian Heimes <christian@cheimes.de> | 2008-02-04 18:48:49 (GMT) |
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| committer | Christian Heimes <christian@cheimes.de> | 2008-02-04 18:48:49 (GMT) |
| commit | 15ebc88d87d2ff8f520581a9f6a6816d78a7e504 (patch) | |
| tree | dfe97b2aea5122d8dbfc8812d8783265007c7d1c /Doc/library/sys.rst | |
| parent | fdb6bb56c19c6c0d332d61fb3f6416cf91be2d02 (diff) | |
| download | cpython-15ebc88d87d2ff8f520581a9f6a6816d78a7e504.zip cpython-15ebc88d87d2ff8f520581a9f6a6816d78a7e504.tar.gz cpython-15ebc88d87d2ff8f520581a9f6a6816d78a7e504.tar.bz2 | |
Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552-60567 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
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r60553 | neal.norwitz | 2008-02-03 17:53:09 +0100 (Sun, 03 Feb 2008) | 1 line
Ignore leaky warnings from test_asynchat
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r60555 | christian.heimes | 2008-02-03 20:51:13 +0100 (Sun, 03 Feb 2008) | 1 line
Another int -> pid_t case
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r60560 | amaury.forgeotdarc | 2008-02-03 23:51:43 +0100 (Sun, 03 Feb 2008) | 6 lines
Ensure that PySet_Add() operates on a newly created frozenset, like PyTuple_SetItem does.
Add PyFrozenSet_Check(), which was not needed before; The list of Py*Set_Check* macros seems to be complete now.
Add missing NEWS entries about all this.
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r60563 | amaury.forgeotdarc | 2008-02-04 00:14:32 +0100 (Mon, 04 Feb 2008) | 2 lines
Nasty typo in setobject.h
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r60564 | amaury.forgeotdarc | 2008-02-04 00:15:32 +0100 (Mon, 04 Feb 2008) | 3 lines
Correct test_mailbox on win32: since the test sets a custom 'colon' attribute
to the main mailbox, copy it to secondary mailbox instances.
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r60565 | amaury.forgeotdarc | 2008-02-04 00:57:24 +0100 (Mon, 04 Feb 2008) | 2 lines
Let test_socketserver pass on win32, which does not have AF_UNIX sockets.
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r60566 | jeffrey.yasskin | 2008-02-04 02:04:35 +0100 (Mon, 04 Feb 2008) | 2 lines
Make int() and long() fall back to __trunc__(). See issue 2002.
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r60567 | christian.heimes | 2008-02-04 19:00:12 +0100 (Mon, 04 Feb 2008) | 3 lines
Patch #1953
I implemented the function sys._compact_freelists() and C API functions PyInt_/PyFloat_CompactFreeList() to compact the pre-allocated blocks of ints and floats. They allow the user to reduce the memory usage of a Python process that deals with lots of numbers.
The patch also renames sys._cleartypecache to sys._clear_type_cache
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Diffstat (limited to 'Doc/library/sys.rst')
| -rw-r--r-- | Doc/library/sys.rst | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/Doc/library/sys.rst b/Doc/library/sys.rst index 5fdff44..02a1d20 100644 --- a/Doc/library/sys.rst +++ b/Doc/library/sys.rst @@ -54,9 +54,28 @@ always available. A string containing the copyright pertaining to the Python interpreter. -.. function:: _cleartypecache() +.. function:: _compact_freelists() - Clear the internal type lookup cache. + Compact the free list of floats by deallocating unused blocks. + It can reduce the memory usage of the Python process several tenth of + thousands of integers or floats have been allocated at once. + + The return value is a tuple of tuples each containing three elements, + amount of used objects, total block count before the blocks are deallocated + and amount of freed blocks. + + This function should be used for specialized purposes only. + + .. versionadded:: 2.6 + + +.. function:: _clear_type_cache() + + Clear the internal type cache. The type cache is used to speed up attribute + and method lookups. Use the function *only* to drop unnecessary references + during reference leak debugging. + + This function should be used for internal and specialized purposes only. .. versionadded:: 2.6 |