New submission from Andrei Zene :
In an application where we were handling incoming requests in new threads, we
noticed that the memory usage grew over time. After trying to understand what's
going on, i was able to reproduce this with a smaller python script that i've
attached.
Andrei Zene added the comment:
That's actually a great explanation Nathaniel. Thanks for putting that all
together.
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Python tracker
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Andrei Zene added the comment:
I have updated PR 13842(https://github.com/python/cpython/pull/13842) to
dynamically alocate the fd_sets on windows.
I did some testing on windows with the following two paterns:
1. 1 transient clients: (open connection, send message, close connection)
2
Andrei Zene added the comment:
Awesome work Victor! Thanks! I'll give it a try. One thing I see mising though
(if I understand well) is the allocation of three fd_sets (I posted a comment
on github regarding that).
Those fd_sets are currently allocated on stack and the array they conta
Andrei Zene added the comment:
> Would it be possible to make FD_SETSIZE configurable at runtime, at least on
> Windows? IMHO it would be a better approach.
That would be awesome, but it doesn't look like it would be possible. As I have
already pointed out in my previous comment:
Andrei Zene added the comment:
We would also need this limit to be raised. We are using a server that was
implemented using tornado, and tornado uses select.select.
> It looks like Modules/selectmodule.c already has the handling for when this
> gets large (and we really want t
Change by Andrei Zene :
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keywords: +patch
pull_requests: +13719
stage: -> patch review
pull_request: https://github.com/python/cpython/pull/13842
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