Message 359239 - Python tracker

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In-reply-to
Author	mneerup
Recipients	mneerup
Date	2020年01月03日.15:32:28
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1578065548.82.0.563193246076.issue39201@roundup.psfhosted.org>

Content
Hi, I think there is an issue with memory allocating with threading.Timer in 3.8.0/3.8.1. When I run the attached code in Python 3.7.3 I get a memory consumption of approx. 10 MB. If I run the same code with python 3.8.0 or 3.8.1, it keeps consuming memory (several hundreds of MB). I've attached 3 images where I run the attached script under mprof. By inspect of the output from tracemalloc, I can see that /usr/lib/python3.8/threading.py:908 keeps allocating memory. I have tested this with python 3.8.0 from ubuntu 16.04 repository and python 3.8.1 from source. Both versions suffers from the memory consumption issue.

Content

Hi,
I think there is an issue with memory allocating with threading.Timer in 3.8.0/3.8.1.
When I run the attached code in Python 3.7.3 I get a memory consumption of approx. 10 MB. If I run the same code with python 3.8.0 or 3.8.1, it keeps consuming memory (several hundreds of MB). 
I've attached 3 images where I run the attached script under mprof.
By inspect of the output from tracemalloc, I can see that 
/usr/lib/python3.8/threading.py:908 keeps allocating memory.
I have tested this with python 3.8.0 from ubuntu 16.04 repository and python 3.8.1 from source. Both versions suffers from the memory consumption issue.

History
Date	User	Action	Args
2020年01月03日 15:32:28	mneerup	set	recipients: + mneerup
2020年01月03日 15:32:28	mneerup	set	messageid: <1578065548.82.0.563193246076.issue39201@roundup.psfhosted.org>
2020年01月03日 15:32:28	mneerup	link	issue39201 messages
2020年01月03日 15:32:28	mneerup	create

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