[issue27841] Use fast call in method_call() and slot_tp_new()
STINNER Victor
report at bugs.python.org
Wed Aug 24 19:19:06 EDT 2016
STINNER Victor added the comment:
> Tuples use a freelist ;-)
Honestly, I didn't expect that my "fast call" thing would give any significant speedup. I know that tuple allocator uses a free list.
Fast calls allows to avoid INCREF/DECREF on each argument, can use the C stack for short memory allocations and C arrays are not tracked by the garbage collector. It looks like all these minor things altogether provides a concrete and significant speedup on benchmarks.
So, I pushed call_prepend.patch with two changes:
* Fix a typo in the function name :-D
* Fix a reference leak in slot_tp_new() ;-)
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resolution: -> fixed
status: open -> closed
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<https://bugs.python.org/issue27841>
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