fly316/PX4-Autopilot
7
0
Fork 0
mirror of https://gitee.com/mirrors_PX4/PX4-Autopilot.git synced 2026-04-14 10:07:39 +08:00
Code Issues Packages Projects Releases Wiki Activity

Profiler: computing stack top distribution

Browse Source
This commit is contained in:
Pavel Kirienko 2015-01-17 03:57:46 +03:00 committed by Lorenz Meier
parent 647163d6fa
commit 543cb23128
1 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
Debug/poor-mans-profiler.sh
View File

@ -212,6 +212,9 @@ def parse(line):
stacks = collections.defaultdict(int)
current = ''
stack_tops = collections.defaultdict(int)
num_stack_frames = 0
for idx,line in enumerate(fileinput.input()):
try:
line = line.strip()
@ -219,6 +222,10 @@ for idx,line in enumerate(fileinput.input()):
inf = parse(line)
fun = inf['function']
current = (fun + ';' + current) if current else fun
if inf['frame_num'] == 0:
num_stack_frames += 1
stack_tops[fun] += 1
elif current:
stacks[current] += 1
current = ''
@ -227,6 +234,11 @@ for idx,line in enumerate(fileinput.input()):
for s, f in sorted(stacks.items(), key=lambda (s, f): s):
print(s, f)
print('Total stack frames:', num_stack_frames, file=sys.stderr)
print('Top consumers (distribution of the stack tops):', file=sys.stderr)
for name,num in sorted(stack_tops.items(), key=lambda (name, num): num, reverse=True)[:10]:
print('% 5.1f%% ' % (100 * num / num_stack_frames), name, file=sys.stderr)
EOF
cat $stacksfile | python /tmp/pmpn-folder.py > $foldfile