[Python-ideas] Support parsing stream with `re`

Anders Hovmöller boxed at killingar.net
Mon Oct 8 08:15:12 EDT 2018


>> However, another possibility is the the regexp is consuming lots of memory.
>> 
>> The regexp seems simple enough (b'.'), so I doubt it is leaking memory like
>> mad; I'm guessing you're just seeing the OS page in as much of the file as it
>> can.
> 
> Yup. Windows will aggressively fill up your RAM in cases like this
> because after all why not?  There's no use to having memory just
> sitting around unused.  For read-only, non-anonymous mappings it's not
> much problem for the OS to drop pages that haven't been recently
> accessed and use them for something else.  So I wouldn't be too
> worried about the process chewing up RAM.
> 
> I feel like this is veering more into python-list territory for
> further discussion though.

Last time I worked on windows, which admittedly was a long time, the file cache was not attributed to a process, so this doesn't seem to be relevant to this situation. 

/ Anders
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