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Victor Stinner e6f8abd500
bpo-38061: subprocess uses closefrom() on FreeBSD (GH-19697) 
Optimize the subprocess module on FreeBSD using closefrom().
A single close(fd) syscall is cheap, but when sysconf(_SC_OPEN_MAX)
is high, the loop calling close(fd) on each file descriptor can take
several milliseconds.

The workaround on FreeBSD to improve performance was to load and
mount the fdescfs kernel module, but this is not enabled by default.

Initial patch by Ed Maste (emaste), Conrad Meyer (cem), Kyle Evans
(kevans) and Kubilay Kocak (koobs):
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=242274
 		2020-04-24 12:06:58 +02:00
..
_blake2 bpo-40268: Remove explicit pythread.h includes (#19529) 2020-04-15 02:04:42 +02:00
_ctypes bpo-40302: Add pycore_byteswap.h header file (GH-19552) 2020-04-17 17:47:20 +02:00
_decimal bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
_io bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
_multiprocessing bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
_sha3 bpo-40302: Replace PY_INT64_T with int64_t (GH-19573) 2020-04-17 19:13:06 +02:00
_sqlite bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
_ssl
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_xxtestfuzz
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cjkcodecs bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
clinic bpo-40138: Fix Windows os.waitpid() for large exit code (GH-19637) 2020-04-22 16:30:35 +02:00
expat
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README
…
Setup bpo-40334: PEP 617 implementation: New PEG parser for CPython (GH-19503) 2020-04-22 23:29:27 +01:00
_abc.c bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
_asynciomodule.c bpo-40294: Fix _asyncio when module is loaded/unloaded multiple times (GH-19542) 2020-04-17 04:09:45 +02:00
_bisectmodule.c
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_bz2module.c bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
_codecsmodule.c
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_collectionsmodule.c bpo-40277: Add a repr() to namedtuple's _tuplegetter to aid with introspection (GH-19537) 2020-04-14 23:36:08 -07:00
_contextvarsmodule.c
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_cryptmodule.c
…
_csv.c bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
_curses_panel.c bpo-40170: PyObject_NEW() becomes an alias to PyObject_New() (GH-19379) 2020-04-08 00:38:15 +02:00
_cursesmodule.c bpo-39943: Add the const qualifier to pointers on non-mutable PyBytes data. (GH-19472) 2020-04-12 14:58:27 +03:00
_datetimemodule.c bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
_dbmmodule.c
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_elementtree.c bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
_functoolsmodule.c Fix uninitialized struct member (GH-19589) 2020-04-20 13:47:12 -07:00
_gdbmmodule.c
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_hashopenssl.c bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
_heapqmodule.c bpo-1635741: Port _heapq module to multiphase initialization (GH19057) 2020-03-18 15:29:34 +01:00
_json.c bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
_localemodule.c bpo-39943: Add the const qualifier to pointers on non-mutable PyBytes data. (GH-19472) 2020-04-12 14:58:27 +03:00
_lsprof.c bpo-35370: Add _PyEval_SetTrace() function (GH-18975) 2020-03-13 16:39:12 +01:00
_lzmamodule.c bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
_math.c
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_math.h
…
_opcode.c
…
_operator.c bpo-39943: Add the const qualifier to pointers on non-mutable PyUnicode data. (GH-19345) 2020-04-11 10:48:40 +03:00
_peg_parser.c bpo-40334: Improve various PEG-Parser related stuff (GH-19669) 2020-04-23 16:36:06 +01:00
_pickle.c bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
_posixsubprocess.c bpo-38061: subprocess uses closefrom() on FreeBSD (GH-19697) 2020-04-24 12:06:58 +02:00
_queuemodule.c bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
_randommodule.c bpo-40286: Makes simpler the relation between randbytes() and getrandbits() (GH-19574) 2020-04-17 23:51:28 +03:00
_scproxy.c
…
_sre.c bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
_ssl.c bpo-40268: Remove explicit pythread.h includes (#19529) 2020-04-15 02:04:42 +02:00
_ssl_data.h closes bpo-40266, closes bpo-39953: Use numeric lib code if compiling against old OpenSSL. (GH-19506) 2020-04-13 22:11:40 -05:00
_stat.c
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_statisticsmodule.c bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
_struct.c bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
_testbuffer.c
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_testcapimodule.c bpo-39849: Enable assertions in _testcapimodule.c and _testinternalcapi.c (GH-19623) 2020-04-21 01:49:13 +09:00
_testimportmultiple.c
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_testinternalcapi.c bpo-39849: Enable assertions in _testcapimodule.c and _testinternalcapi.c (GH-19623) 2020-04-21 01:49:13 +09:00
_testmultiphase.c bpo-39824: module_traverse() don't call m_traverse if md_state=NULL (GH-18738) 2020-03-17 18:09:46 +01:00
_threadmodule.c bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
_tkinter.c bpo-40268: Remove explicit pythread.h includes (#19529) 2020-04-15 02:04:42 +02:00
_tracemalloc.c bpo-40268: Remove unused osdefs.h includes (GH-19532) 2020-04-15 03:24:57 +02:00
_uuidmodule.c bpo-1635741: Port _uuid module to multiphase initialization (GH-19242) 2020-03-31 14:43:47 +02:00
_weakref.c bpo-40170: PyObject_GET_WEAKREFS_LISTPTR() becomes a function (GH-19377) 2020-04-06 14:07:02 +02:00
_winapi.c bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
_xxsubinterpretersmodule.c bpo-40302: Replace PY_INT64_T with int64_t (GH-19573) 2020-04-17 19:13:06 +02:00
addrinfo.h
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arraymodule.c bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
atexitmodule.c bpo-39824: module_traverse() don't call m_traverse if md_state=NULL (GH-18738) 2020-03-17 18:09:46 +01:00
audioop.c bpo-39824: Convert PyModule_GetState() to get_module_state() (GH-19076) 2020-03-19 10:11:33 -07:00
binascii.c Use calloc-based functions, not malloc. (GH-19152) 2020-03-24 23:26:44 -05:00
cmathmodule.c
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config.c.in
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errnomodule.c
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faulthandler.c bpo-40268: Remove explicit pythread.h includes (#19529) 2020-04-15 02:04:42 +02:00
fcntlmodule.c
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gc_weakref.txt
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gcmodule.c bpo-40268: Remove unused pycore_pymem.h includes (GH-19531) 2020-04-15 02:57:50 +02:00
getaddrinfo.c
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getbuildinfo.c
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getnameinfo.c
…
getpath.c bpo-40268: Remove unused osdefs.h includes (GH-19532) 2020-04-15 03:24:57 +02:00
grpmodule.c bpo-39968: Convert extension modules' macros of get_module_state() to inline functions (GH-19017) 2020-03-16 14:15:01 +01:00
hashlib.h
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hashtable.c
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hashtable.h
…
itertoolsmodule.c bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
ld_so_aix.in
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main.c bpo-40268: Remove unused imports in pylifecycle.c (GH-19533) 2020-04-15 04:01:58 +02:00
makesetup
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makexp_aix
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mathmodule.c bpo-1635741: Port math module to multiphase initialization (GH-19243) 2020-03-31 16:33:22 +02:00
md5module.c
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mmapmodule.c bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
nismodule.c
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ossaudiodev.c bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
overlapped.c bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
parsermodule.c
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posixmodule.c bpo-38061: os.closerange() uses closefrom() on FreeBSD (GH-19696) 2020-04-24 12:00:51 +02:00
posixmodule.h
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pwdmodule.c bpo-39968: Convert extension modules' macros of get_module_state() to inline functions (GH-19017) 2020-03-16 14:15:01 +01:00
pyexpat.c bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
readline.c bpo-39943: Add the const qualifier to pointers on non-mutable PyBytes data. (GH-19472) 2020-04-12 14:58:27 +03:00
resource.c bpo-1635741: Port resource extension module to multiphase initialization (PEP 489) (GH-19252) 2020-04-02 14:35:08 +02:00
rotatingtree.c
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rotatingtree.h
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selectmodule.c bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
sha1module.c
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sha256module.c bpo-40302: Add pycore_byteswap.h header file (GH-19552) 2020-04-17 17:47:20 +02:00
sha512module.c bpo-40302: Add pycore_byteswap.h header file (GH-19552) 2020-04-17 17:47:20 +02:00
signalmodule.c bpo-40268: Remove explicit pythread.h includes (#19529) 2020-04-15 02:04:42 +02:00
socketmodule.c bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
socketmodule.h
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spwdmodule.c
…
sre.h bpo-39943: Add the const qualifier to pointers on non-mutable PyUnicode data. (GH-19345) 2020-04-11 10:48:40 +03:00
sre_constants.h
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sre_lib.h bpo-39943: Add the const qualifier to pointers on non-mutable PyUnicode data. (GH-19345) 2020-04-11 10:48:40 +03:00
symtablemodule.c
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syslogmodule.c bpo-40268: Remove unused osdefs.h includes (GH-19532) 2020-04-15 03:24:57 +02:00
termios.c bpo-39968: Convert extension modules' macros of get_module_state() to inline functions (GH-19017) 2020-03-16 14:15:01 +01:00
testcapi_long.h
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timemodule.c bpo-40268: Remove explicit pythread.h includes (#19529) 2020-04-15 02:04:42 +02:00
tkappinit.c
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tkinter.h
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unicodedata.c bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
unicodedata_db.h
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unicodename_db.h
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winreparse.h
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xxlimited.c
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xxmodule.c
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xxsubtype.c bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00
zlibmodule.c bpo-40268: Remove unused structmember.h includes (GH-19530) 2020-04-15 02:35:41 +02:00

README 

Source files for standard library extension modules,
and former extension modules that are now builtin modules.