On 9/15/06, Markus Gritsch <[EMAIL PROTECTED]> wrote:
> On 9/15/06, Hiroki Tamakoshi <[EMAIL PROTECTED]> wrote:
> >
> > On Fri, 15 Sep 2006 11:30:11 +0200
> > "Markus Gritsch" <[EMAIL PROTECTED]> wrote:
> >
> > > Because you cannot explicitely delete an object. By calling del on a
> > > variable which holds a reference to it, you just remove this
> > > particular reference to the object. If it was the last reference
> > > pointing to the object, the garbage collector can decide to free the
> > > actual memory *at some time*. You can tell the garbage collector to
> > > collect all objects which are no longer referenced by calling
> > > gc.collect()
> >
> > calling gc.collect() doesn't change the memory usage.
> > (Dan's patch is applied)
> >
> > obj_list = []
> > for i in xrange( 1000 ):
> > obj = SomeObject( parameters ... )
> > obj_list.append( obj ) # memory grows
> >
> > for obj in obj_list:
> > obj.expire() # clear cache
> >
> > del obj_list
> > gc.collect() # <- added here, memory usage doesn't change.
>
> What if you omit expiring every single object and do a
>
> sqlhub.processConnection.cache.clear()
>
> instead?
Something like
obj_list = []
for i in range( 1000 ):
obj = SomeObject( parameters ... )
obj_list.append( obj ) # memory grows
del obj_list
sqlhub.processConnection.cache.clear()
gc.collect() # maybe skip this -- I never explicitly force the gc to collect.
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