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192 commits

Author SHA1 Message Date
Victor Stinner
dd407d5006 Optimize deque index, insert and rotate() methods 
Issue #29452: Use METH_FASTCALL calling convention for index(), insert() and
rotate() methods of collections.deque to avoid the creation a temporary tuple
to pass position arguments. Speedup on deque methods:

* d.rotate(): 1.10x faster
* d.rotate(1): 1.24x faster
* d.insert(): 1.18x faster
* d.index(): 1.24x faster
 2017-02-06 16:06:49 +01:00
Raymond Hettinger
a24dca6a90 Fix typo 2017-01-12 22:25:25 -08:00
Victor Stinner
7bfb42d5b7 Issue #28858: Remove _PyObject_CallArg1() macro 
Replace
   _PyObject_CallArg1(func, arg)
with
   PyObject_CallFunctionObjArgs(func, arg, NULL)

Using the _PyObject_CallArg1() macro increases the usage of the C stack, which
was unexpected and unwanted. PyObject_CallFunctionObjArgs() doesn't have this
issue.
 2016-12-05 17:04:32 +01:00
Victor Stinner
4778eab1f2 Replace PyObject_CallFunction() with fastcall 
Replace
    PyObject_CallFunction(func, "O", arg)
and
    PyObject_CallFunction(func, "O", arg, NULL)
with
    _PyObject_CallArg1(func, arg)

Replace
    PyObject_CallFunction(func, NULL)
with
    _PyObject_CallNoArg(func)

_PyObject_CallNoArg() and _PyObject_CallArg1() are simpler and don't allocate
memory on the C stack.
 2016-12-01 14:51:04 +01:00
Serhiy Storchaka
f0b311bd73 Issue #28123: _PyDict_GetItem_KnownHash() now can raise an exception as 
PyDict_GetItemWithError().  Patch by Xiang Zhang.
 2016-11-06 13:18:24 +02:00
Raymond Hettinger
88057171f0 Revert part of 3471a3515827 that caused a performance regression 2016-09-11 22:45:53 -07:00
Victor Stinner
ad8c83ad6b Avoid inefficient way to call functions without argument 
Don't pass "()" format to PyObject_CallXXX() to call a function without
argument: pass NULL as the format string instead. It avoids to have to parse a
string to produce 0 argument.
 2016-09-05 17:53:15 -07:00
doko@ubuntu.com
17f0e61891 - Modules/_collectionsmodule.c: Mark one more internal symbol as static. 2016-06-14 07:27:58 +02:00
doko@ubuntu.com
bc7315068f - make some internal symbols static 2016-05-18 01:06:01 +02:00
Serhiy Storchaka
a0d416f0d1 Issue #26482: Allowed pickling recursive dequeues. 2016-03-06 08:55:21 +02:00
Raymond Hettinger
d79d5b1a50 More logicial order. Move space saving step to just before it is used. 2016-03-04 09:55:07 -08:00
Raymond Hettinger
6f86a3308a Factor-out common subexpression. 2016-03-02 00:30:58 -08:00
Raymond Hettinger
589106b206 Put block length computations in a more logical order. 2016-03-02 00:06:21 -08:00
Raymond Hettinger
38418662e0 Issue #26200: The SETREF macro adds unnecessary work in some cases. 2016-02-08 20:34:49 -08:00
Raymond Hettinger
a63897164e merge 2016-02-01 21:21:19 -08:00
Raymond Hettinger
0ef0423cb2 merge 2016-01-26 21:46:03 -08:00
Raymond Hettinger
3743432302 Issue #26194: Fix undefined behavior for deque.insert() when len(d) == maxlen 2016-01-26 21:44:16 -08:00
Raymond Hettinger
306d6b1ea6 Convert another post-decrement while-loop to pre-decrement for consistency 
and better generated code (on both GCC and CLang).
 2016-01-24 12:40:42 -08:00
Raymond Hettinger
165eee214b Convert two other post-decrement while-loops to pre-decrements for consistency 
and for better code generation.
 2016-01-24 11:32:07 -08:00
Raymond Hettinger
d84ec225bd Miscellaneous refactorings 
* Add comment to the maxlen structure entry about the meaning of maxlen == -1
* Factor-out code common to deque_append(left) and deque_extend(left)
* Factor inner-loop in deque_clear() to use only 1 test per loop instead of 2
* Tighten inner-loops for deque_item() and deque_ass_item() so that the
  compiler can combine the decrement and test into a single step.
 2016-01-24 09:12:06 -08:00
Benjamin Peterson
3e47a1337c merge 3.5 2016-01-01 11:56:35 -06:00
Benjamin Peterson
4e3dd51396 merge 3.4 2016-01-01 11:56:16 -06:00
Benjamin Peterson
630329e4ea merge 3.3 2016-01-01 11:55:47 -06:00
Benjamin Peterson
0e617e22f0 remove some copyright notices supserseded by the toplevel ones 2016-01-01 11:53:47 -06:00
Serhiy Storchaka
1ed017ae92 Issue #20440: Cleaning up the code by using Py_SETREF and Py_CLEAR. 
Old code is correct, but with Py_SETREF and Py_CLEAR it can be cleaner.
This patch doesn't fix bugs and hence there is no need to backport it.
 2015-12-27 15:51:32 +02:00
Serhiy Storchaka
a9406e77fa Issue #25421: __sizeof__ methods of builtin types now use dynamic basic size. 
This allows sys.getsize() to work correctly with their subclasses with
__slots__ defined.
 2015-12-19 20:07:11 +02:00
Serhiy Storchaka
5c4064e8bd Issue #25421: __sizeof__ methods of builtin types now use dynamic basic size. 
This allows sys.getsize() to work correctly with their subclasses with
__slots__ defined.
 2015-12-19 20:05:25 +02:00
Raymond Hettinger
4a91d21381 Neaten-up the inner-loop logic. 2015-11-03 22:00:26 -05:00
Raymond Hettinger
df8f5b56c9 Minor cleanup. 2015-11-02 07:27:40 -05:00
Raymond Hettinger
0bdf9ea136 merge 2015-11-02 00:04:46 -05:00
Raymond Hettinger
67b97b8f8d Move the initial start-search out of the main loop so it can be factored-out later. 2015-11-01 23:57:37 -05:00
Martin Panter
e56a919100 Issue #25523: Merge a-to-an corrections from 3.5 2015-11-02 04:27:17 +00:00
Martin Panter
d2ad5718ad Issue #25523: Further a-to-an corrections new in 3.5 2015-11-02 04:20:33 +00:00
Raymond Hettinger
db41fd43cf Removed unused parameter 2015-10-22 22:48:16 -07:00
Raymond Hettinger
0f43bb160e Only update the state variable once per iteration. 2015-10-20 00:03:33 -07:00
Raymond Hettinger
20151f50f6 Issue #25414: Remove unnecessary tests that can never succeed. 2015-10-16 22:47:29 -07:00
Raymond Hettinger
1eca237c2f Remove old Todo entry that isn't going to happen. 2015-10-15 23:25:53 -07:00
Raymond Hettinger
a4b13d0020 Rewrap comment. 2015-10-15 08:05:31 -07:00
Raymond Hettinger
bc00341105 Use unsigned division 2015-10-14 23:33:23 -07:00
Raymond Hettinger
1286d14500 Improve variable names and constant expressions 2015-10-14 23:16:57 -07:00
Raymond Hettinger
965362e92d Minor fixup. maxlen is already known. 2015-10-11 22:52:54 -07:00
Raymond Hettinger
d96db09b57 Refactor the deque trim logic to eliminate the two separate trim functions. 2015-10-11 22:34:48 -07:00
Raymond Hettinger
6b1e113f9f Hoist the deque->maxlen lookup out of the inner-loop. 2015-10-11 09:43:50 -07:00
Raymond Hettinger
a7f63009d6 Minor tweak. Make the maxlen comparisons a little more clear and consistent. 2015-10-10 23:56:02 -04:00
Raymond Hettinger
848f2b595d Backport early-out 91259f061cfb to reduce the cost of bb1a2944bcb6 2015-10-06 23:06:17 -04:00
Raymond Hettinger
0443ac2860 Eliminate unnecessary test 2015-10-05 22:52:37 -04:00
Raymond Hettinger
fd265f4a18 Factor out common iterator finalization code 2015-10-02 23:17:33 -07:00
Raymond Hettinger
0d30940dd2 Add fast paths to deque_init() for the common cases 2015-09-30 23:15:02 -07:00
Raymond Hettinger
38031143fb Add an early-out for deque_clear() 2015-09-29 22:45:05 -07:00
Raymond Hettinger
8299e9b59e Move the copy and clear functions upwards to eliminate unnecessary forward references. 2015-09-26 21:31:23 -07:00