How big is the overhead of tracemalloc?
I've been trying to answer the same question. The best answer I've found is from
https://www.mail-archive.com/python-list@python.org/msg443129.html
which quotes a factor of 3-4 increase memory usage with tracemalloc based on a simple experiment.
Get total physical memory in Python
your best bet for a cross-platform solution is to use the psutil package (available on PyPI).
import psutil
psutil.virtual_memory().total # total physical memory in Bytes
Documentation for virtual_memory is here.
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