OK, so there is clearly a leak in the text rendering algorithm on Centos 7. That narrows things down, but still leaves a heck of a lot of territory.
Looking through the Pillow change file <https://github.com/python-pillow/Pillow/blob/master/CHANGES.rst>, there are lots of references to fixing memory leaks since your version (2.0.0) was published. As yours is getting quite old (3 1/2 years), you could try just upgrading to the current V3.3.1. Maybe we'd get lucky. -tk On Sat, Sep 10, 2016 at 5:25 AM, Allan <weewx2...@warpspeed.dyndns.dk> wrote: > Den 10-09-2016 kl. 00:51 skrev Thomas Keffer: > >> The problem is not likely to be loading the fonts (which are already >> cached), but in their rendering. >> >> Here's a little program that loads the font only once, but renders >> "hello world" 2500 times, then shows the result. It prints out the total >> memory before and after the rendering. Play with different fonts and see >> if you can discover anything. I think 2,500 renderings will be enough to >> reveal something, but you may have to adjust. >> >> It also shows the results. If you're not running under a GUI, you should >> comment out the last line in the program. >> > > I use KDE. > > The first run resulted in an error - it seems it needed the full path to > the font. after fixing that (on Centos 7): > > *** BEFORE RENDERING *** > size= 147.1 MB > resident= 5.4 MB > share= 2.2 MB > > *** AFTER RENDERING *** > size= 163.5 MB > resident= 21.8 MB > share= 2.6 MB > > > Then I increased the x and y values to 5000: > > ~/Billeder>python imageleak1.py > *** BEFORE RENDERING *** > size= 147.1 MB > resident= 5.4 MB > share= 2.2 MB > > *** AFTER RENDERING *** > size= 1659.2 MB > resident= 1517.6 MB > share= 2.6 MB > > > Retried the last one on Fedora 24: > > *** BEFORE RENDERING *** > size= 173.1 MB > resident= 8.9 MB > share= 4.9 MB > > *** AFTER RENDERING *** > size= 174.4 MB > resident= 10.5 MB > share= 5.2 MB > > > > Allan. > > -- > You received this message because you are subscribed to the Google Groups > "weewx-user" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to weewx-user+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
