On May 7, 4:41 pm, Terry Reedy <tjre...@udel.edu> wrote:
> danmcle...@yahoo.com wrote:
> > I am using the array module to instantiate many arrays in my
> > application. It seems like there is a memory leak in there somewhere.
> > Can anyone confim this and let me know what, if anything, I can do
> > about it? I am using Fedora Core 5 Linux:
>
> > import commands
> > import array
> > import itertools
> > import sys
>
> > from itertools import repeat
>
> > print '*** before ***'
> > print commands.getoutput('cat /proc/meminfo').split('\n')[1]
> > for i in range(100):
> > a = array.array('I', repeat(0, int(2E6)))
> > del a
> > print '*** after ***'
> > print commands.getoutput('cat /proc/meminfo').split('\n')[1]
>
> > Output:
> > *** before ***
> > MemFree: 1459772 kB
> > *** after ***
> > MemFree: 1457688 kB
>
> What happens if you remove the loop? I would not be surprised if Python
> grabs the memory once, reuses it, and does not let go. That is not a
> leak. What happens if you put the after inside the loop? Does mem
> usage steadily increase, and continue if you increase range to 1000,
> 10000? That would be a leak.
>
> If there actually is a problem, try a later version of Python.
I'm not convinced there is a problem anymore. In my latest code, I
record the virtual mem allocated to my specific process and I do not
see it increasing. I would think that if I was leaking memory, I
should see a steady increase in virtual memory consumed by my process,
which I do not.
thanks
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