[issue32534] Speed-up list.insert

[Serhiy Storchaka]

Serhiy Storchaka <storchaka+cpython at gmail.com> added the comment:

In your benchmarks the difference between thresholds is only 4%. It would be not worth to keep a special case for such small benefit.

But note that in your benchmarks you inserted in a list with the size up to 50000 elements. The value of the threshold affects only the first few insertions. Your need to test inserting in short lists. Recreate a list at every iteration.

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<https://bugs.python.org/issue32534>
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