[issue40727] SSLContext.load_verify_locations leaks memory on Linux in async code

[Recursing]

Recursing <buonanno.lorenzo at gmail.com> added the comment:

> Without asyncio memory consumption stays low and stable for me

Same for me

> RSS jumps from 20 MB to about 1,600 MB.

That is the memory consumption I observe as well, the issue is that it doesn't get freed on Linux

> There is almost no increase when I run the look several more times.

Same for me, but of course only if I exit the "async" context between runs

> Why are you creating so many SSLContext objects any way? It's very inefficient and really not necessary.

The original issue was observed in a very long running process (months), that occasionally needed a context and it was convenient to just create one every time (actually it creates an AsyncClient context https://github.com/encode/httpx/issues/978) even if it is relatively inefficient, it didn't really matter, but memory usage unexpectedly slowly grew to 1 GB which was very unexpected

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40727>
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