[Zope] Zope 2.7.3 Memory Leaks

Tim Peters tim.peters at gmail.com
Tue Jan 4 15:46:07 EST 2005


[Dieter Maurer]
> ...
> Also, Python never releases integer objects it has constructed.
> Thus, once you iterated from 0 to 4 G, you have several GB
> of integer objects -- but it is unlikely that you do this...

But Python does reuse space allocated for integers when it can.  So,
for example, this causes no visible memory growth:

i = 0
while i < 4*1024**3:
    i += 1

If it were possible (it isn't) to get away with doing

    range(4*1024**3)

then the space for those 4 billion *simultaneously-alive* integers
would indeed stick around forever.  Same story for floats, BTW.  It's
the maximum number simultaneously alive that matters here, not the
total number of ints or floats ever created.

In any case, I sure agree this is unlikely to be "the problem" that's
biting Andy.


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