On 02/02/2011 10:17 PM, Eric Firing wrote: > On 02/02/2011 08:38 PM, Robert Abiad wrote: >> > [...] >> I'll put it in as an enhancement, but I'm still unsure if there is a >> bug in >> there as well. Is there something I should be doing to clear memory >> after the >> first figure is closed other than close()? I don't understand why >> memory usage >> grows each time I replot, but I'm pretty sure it isn't desireable >> behavior. As >> I mentioned, this effect is worse with plot. >> >> So is this a bug or improper usage? > > I'm not quite sure, but I don't think there is a specifically matplotlib > memory leak bug at work here. Are you using ipython, and if so, have you > turned off the caching? In its default mode, ipython keeps lots of > references, thereby keeping memory in use. Also, memory management and > reporting can be a bit tricky and misleading. > > Nevertheless, the attached script may be illustrating the problem. Try > running it from the command line as-is (maybe shorten the loop--it > doesn't take 100 iterations to show the pattern) and then commenting out > the line as indicated in the comment. It seems that if anything is done > that adds ever so slightly to memory use while the figure is displayed, > then when the figure is closed, its memory is not reused. I'm puzzled.
I wasn't thinking straight--there is no mystery and no memory leak. Ignore my example script referred to above. It was saving rows of the z array, not single elements as I had intended, so of course memory use was growing substantially. Eric > > Eric > >> >> As for how to implement a fix for memory usage, I'll let you folks >> figure that >> out. But it seems that if I want a grayscale image, I could reduce >> memory usage >> by 4 if matplotlib could turn rgba into intensity. >> >> -robert > > > ------------------------------------------------------------------------------ > Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! > Finally, a world-class log management solution at an even better price-free! > Download using promo code Free_Logger_4_Dev2Dev. Offer expires > February 28th, so secure your free ArcSight Logger TODAY! > http://p.sf.net/sfu/arcsight-sfd2d > > > > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users ------------------------------------------------------------------------------ Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
