import argparse
class Node:
def __init__(self):
self.function = ""
self.source = ""
self.line = 0
self.hier_ticks = 0
self.self_ticks = 0
def title(self):
if self.line > 0:
return "{} ({}:{})".format(self.function, self.source, self.line)
else:
return self.function
argumentParser = argparse.ArgumentParser(description='Display summary statistics from Luau sampling profiler dumps')
argumentParser.add_argument('source_file', type=open)
argumentParser.add_argument('--limit', dest='limit', type=int, default=10, help='Display top N functions')
arguments = argumentParser.parse_args()
dump = arguments.source_file.readlines()
stats = {}
total = 0
total_gc = 0
for l in dump:
ticks, stack = l.strip().split(" ", 1)
hier = {}
for f in reversed(stack.split(";")):
source, function, line = f.split(",")
node = stats.setdefault(f, Node())
node.function = function
node.source = source
node.line = int(line) if len(line) > 0 else 0
if not node in hier:
node.hier_ticks += int(ticks)
hier[node] = True
total += int(ticks)
node.self_ticks += int(ticks)
if node.source == "GC":
total_gc += int(ticks)
if total > 0:
print(f"Runtime: {total:,} usec ({100.0 * total_gc / total:.2f}% GC)")
print()
print("Top functions (self time):")
for n in sorted(stats.values(), key=lambda node: node.self_ticks, reverse=True)[:arguments.limit]:
print(f"{n.self_ticks:12,} usec ({100.0 * n.self_ticks / total:.2f}%): {n.title()}")
print()
print("Top functions (total time):")
for n in sorted(stats.values(), key=lambda node: node.hier_ticks, reverse=True)[:arguments.limit]:
print(f"{n.hier_ticks:12,} usec ({100.0 * n.hier_ticks / total:.2f}%): {n.title()}")
