[Python-Dev] Have a big machine and spare time? Here's a possible Python bug.

Joni Orponen j.orponen at 4teamwork.ch
Thu May 23 08:35:21 EDT 2019

On Thu, May 23, 2019 at 11:52 AM Inada Naoki <songofacandy at gmail.com> wrote:

> I have only 32GB mem, but AWS has larger memory machine!

Be aware that on larger cloud vendor instances, the backing vCPUs and
memory you get allocated might or might not be spread opaquely across
multiple sockets and/or NUMA nodes of the backing hardware. Some of them
have options where you can allocate raw hardware as well so you can opt to
lock your process to run within just one NUMA node and ensure hardware
locality for your performance debugging.

I'm pointing this out in case you experience any mystery jitters in your
benchmark results.

Joni Orponen
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