On 29/07/2022 8:08 am, Chris Angelico wrote:
It takes a bit of time to start ten thousand threads, but after that,
the system is completely idle again until I notify them all and they
shut down.
(Interestingly, it takes four times as long to start 20,000 threads,
suggesting that something in thread spawning has O(n²) cost. Still,
even that leaves the system completely idle once it's done spawning
them.)
Another cost of threads can be memory allocated as thread stack space,
the default size of which varies by OS (see e.g.
https://ariadne.space/2021/06/25/understanding-thread-stack-sizes-and-how-alpine-is-different/).
threading.stack_size() can be used to check and perhaps adjust the
allocation size.
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