why python cache the string > 256?
Diez B. Roggisch
deets at nospam.web.de
Mon Oct 26 16:03:58 EDT 2009
s7v7nislands schrieb:
> hi all:
>
> test.py
> #!/usr/bin/python
> a = []
> for i in xrange(1000000):
> a.append('a'*500)
>
>
> $python -i test.py #virt mem 514m in top output
>>> del a #virt mem 510m
>
> why python cache these string?
> In source, I see when object size > SMALL_REQUEST_THRESHOLD, python
> would use malloc.
> also use free() when string refcount == 0.
>
> do I miss somethong?
http://effbot.org/pyfaq/why-doesnt-python-release-the-memory-when-i-delete-a-large-object.htm
Diez
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