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Wed Oct 14 11:10:27 EDT 2015 · https://mail.python.org/pipermail/python-dev/2015-October/141919.html

On 14/10/2015 16:04, Stefan Ring wrote:
> On Wed, Oct 14, 2015 at 3:11 PM, Chris Withers <chris at simplistix.co.uk> wrote:
>> I'm having trouble with some python processes that are using 3GB+ of memory
>> but when I inspect them with either heapy or meliae, injected via pyrasite,
>> those tools only report total memory usage to be 119Mb.
>>
>> This feels like the old "python high water mark" problem, but I thought that
>> was fixed in 2.6/3.0?
>> Under what circumstances can a Python process still exhibit high memory
>> usage that tools like heapy don't know about?
> Which Python version are you experiencing this with? I know that in
> Python 2.7, having many floats (and I think also ints) active at once
> creates a high water situation. Python 2.7 is what I have experience
> with -- with heap sizes around 40 GB sometimes.
Python 2.7.5 on RHEL 7.1.

Chris

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[Python-Dev] under what circumstances can python still exhibit "high water mark" memory usage?