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"""
Debugging routines, can only be used when Kupfer is run from the Source
directory.
"""
import atexit
def mem_stats():
import gc
print "DEBUG: OBJ STATS"
print "enabled:", gc.isenabled()
print "objs", len(gc.get_objects())
print "collected (now)", gc.collect()
# after collection
hist = {}
for obj in gc.get_objects():
key = str(type(obj))
if key not in hist:
hist[key] =1
else:
hist[key] += 1
best = hist.items()
best.sort(key=lambda x:x[1], reverse=True)
print "\n".join("%s: %d" % (k,v) for k,v in best[:10])
our = []
gtk = []
for item in best:
if "objects." in item[0] or "kupfer." in item[0]:
our.append(item)
if "gtk" in item[0]:
gtk.append(item)
#print "---just gtk (top)"
#print "\n".join("%s: %d" % (k,v) for k,v in gtk[:10])
print "---Just our objects (all > 1)"
print "\n".join("%s: %d" % (k,v) for k,v in our if v > 1)
def make_histogram(vect, nbins=7):
"""make a histogram out of @vect"""
mi,ma = 0, max(vect)
bins = [0]*nbins
bin_size = ma/nbins + 1
def brange(i):
return xrange(i*bin_size, (i+1)*bin_size)
for acc in vect:
for i in xrange(nbins):
if acc in brange(i):
bins[i] += 1
break
# headers
print " ".join("%10s" % ("[%2d, %2d)" % (min(brange(i)), max(brange(i))),) for i in xrange(nbins))
print " ".join("%10d" % bins[i] for i in xrange(nbins))
def icon_stats():
from kupfer.icons import icon_cache
print "DEBUG: ICON STATS"
c = 0
tot_acc = 0
tot_pix = 0
acc_vect = []
for size in icon_cache:
for k in icon_cache[size]:
rec = icon_cache[size][k]
acc = rec["accesses"]
acc_vect.append(acc)
if not acc:
c += 1
tot_acc += acc
icon = rec["icon"]
tot_pix += icon.get_height() * icon.get_width()
print "Cached icons:", len(icon_cache[size])
print "Unused cache entries", c
print "Total accesses", tot_acc
print make_histogram(acc_vect)
print "Sum pixels", tot_pix
print "Cached icon keys:"
for k in sorted(icon_cache[size],
key=lambda k: icon_cache[size][k]["accesses"]):
print k, icon_cache[size][k]["accesses"]
def install():
"""Install atexit handlers for debug information"""
atexit.register(mem_stats)
#atexit.register(icon_stats)
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