Show agg_memleak.py syntax highlighted
import sys, time, os
from matplotlib.ft2font import FT2Font
from matplotlib.numerix import rand
from matplotlib.backend_bases import GraphicsContextBase
from matplotlib.backends._backend_agg import RendererAgg
def report_memory(i):
pid = os.getpid()
a2 = os.popen('ps -p %d -o rss,sz' % pid).readlines()
print i, ' ', a2[1],
return int(a2[1].split()[0])
fname = '/usr/local/share/matplotlib/Vera.ttf'
N = 200
for i in range(N):
gc = GraphicsContextBase()
gc.set_clip_rectangle( [20,20,20,20] )
o = RendererAgg(400,400, 72)
for j in range(50):
xs = [400*int(rand()) for k in range(8)]
ys = [400*int(rand()) for k in range(8)]
rgb = (1,0,0)
pnts = zip(xs, ys)
o.draw_polygon(gc, rgb, pnts)
o.draw_polygon(gc, None, pnts)
for j in range(50):
x = [400*int(rand()) for k in range(4)]
y = [400*int(rand()) for k in range(4)]
o.draw_lines( gc, x, y)
for j in range(50):
args = [400*int(rand()) for k in range(4)]
rgb = (1,0,0)
o.draw_rectangle(gc, rgb, *args)
if 1: # add text
font = FT2Font(fname)
font.clear()
font.set_text('hi mom', 60)
font.set_size(12, 72)
o.draw_text_image(font.get_image(), 30, 40, gc)
o.write_png('aggtest%d.png'%i)
val = report_memory(i)
if i==1: start = val
end = val
print 'Average memory consumed per loop: %1.4f\n' % ((end-start)/float(N))
# w/o text and w/o write_png: Average memory consumed per loop: 0.02
# w/o text and w/ write_png : Average memory consumed per loop: 0.3400
# w/ text and w/ write_png : Average memory consumed per loop: 0.32
See more files for this project here