[issue30919] Shared Array Memory Allocation Regression

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

This can break Python 3 applications that work with shared arrays larger than the size of physical memory. If do this change, it should be optional.

Setting TMPDIR=/dev/shm restores performance of 2.7 version even on versions that we will decide to not patch.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue30919>
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