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More timings suggest that 2500 is closer to the break-even point.

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Raymond Hettinger 2015-05-12 21:40:50 -07:00
parent ffcd8490d0
commit 636488043b
1 changed files with 1 additions and 1 deletions
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2
Modules/_heapqmodule.c
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@ -335,7 +335,7 @@ heapify_internal(PyObject *heap, int siftup_func(PyListObject *, Py_ssize_t))
in cache, we prefer the simpler algorithm with less branching.
*/
n = PyList_GET_SIZE(heap);
if (n > 10000)
if (n > 2500)
return cache_friendly_heapify(heap, siftup_func);
/* Transform bottom-up. The largest index there's any point to