Mike Bauer wrote: > Jeff, > > Using Python 2.6 results in the following Deprecation Warnings: > > /usr/local/lib/python2.6/site-packages/pytz/tzinfo.py:5: > DeprecationWarning: the sets module is deprecated > from sets import Set > /usr/local/lib/python2.6/site-packages/httplib2/__init__.py:29: > DeprecationWarning: the md5 module is deprecated; use hashlib instead > import md5 > /usr/local/lib/python2.6/site-packages/httplib2/__init__.py:44: > DeprecationWarning: the sha module is deprecated; use the hashlib > module instead > import sha > > Don't know if this is a problem.
Mike: No, that's not a problem. I've fixed the httplib2 warnings in SVN. > > I moved the basemap instance call outside the loop and the problem is > greatly reduced; although my memory usage still linearly increases but > by say 0.5 Gb instead of 6 Gb. > I can live with that. Python2.5 lacks this increase as you expected. > > I ran trunk/matplotlib/unit//memleak_hawaii.py with python2.6: > Average memory consumed per loop: 0.4428k bytes > > /Same call from python2.5: > Average memory consumed per loop: 0.5672k bytes > > Seems basemap is needed to the memory leak. > > Mike Can you send me the script you used to detect the leak? -Jeff > > On Tue, Oct 21, 2008 at 5:36 PM, Jeff Whitaker <[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]>> wrote: > > Mike Bauer wrote: > > I've been testing matplotlib and basemap (0.98.x and 0.99.x > via svn source) and python 2.6 (via svn) on ubuntu 8.04 (AMD-64). > > I noticed that calling basemap in a loop results in a fairly > steep linear increase in memory use; I burn though 6 Gb in a > minute. > > Putting a loop in plotmap.py from the provided examples does > this as well, so I don't think it's something I'm doing. > > Any ideas? > > Thanks. > > Mike > > P.S. Note that I'd like to use python 2.6 for the > multiprocessing module (not in use in this script as of yet). > My base install of python 2.5 with matplotlib and basemap > (0.98.3 and 0.99.1 via sourceforge sourse) works fine. > > > Mike: Note that you don't actually need to recreate the basemap > instance each time through the loop (since the map projection > region is not changing). > AFAIK there are no serious memory leaks in basemap with python 2.5 > - so if you can provide an example that triggers one I'd like to > see it. > Sounds like it might only be occurring with python 2.6? > > -Jeff > > -- > Jeffrey S. Whitaker Phone : (303)497-6313 > Meteorologist FAX : (303)497-6449 > NOAA/OAR/PSD R/PSD1 Email : [EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]> > 325 Broadway Office : Skaggs Research Cntr 1D-113 > Boulder, CO, USA 80303-3328 Web : http://tinyurl.com/5telg > > -- Jeffrey S. Whitaker Phone : (303)497-6313 Meteorologist FAX : (303)497-6449 NOAA/OAR/PSD R/PSD1 Email : [EMAIL PROTECTED] 325 Broadway Office : Skaggs Research Cntr 1D-113 Boulder, CO, USA 80303-3328 Web : http://tinyurl.com/5telg ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
