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#!/usr/bin/python
import sys, os, re
def avg_deviation(values):
sum = 0
count = 0
if not values:
return (0, 0)
for x in values:
sum += x
count += 1
average = sum / count
sum_sq_dev = 0
for x in values:
sum_sq_dev += (x - average) ** 2
std_dev = (sum_sq_dev / count)**0.5
return (average, 100 * std_dev / average)
list = []
for line in sys.stdin.readlines():
(user, system, elapsed, cpu) = line.split()[0:4]
user = float(re.match(r'([\d\.]+)', user).group(0))
system = float(re.match(r'([\d\.]+)', system).group(0))
m = re.match(r'(\d+):([\d\.]+)', elapsed)
elapsed = 60*int(m.group(1)) + float(m.group(2))
cpu = int(re.match(r'(\d+)', cpu).group(0))
list.append((user, system, elapsed, cpu))
print " user: %0.2fs (%0.2f%%)" % avg_deviation([x[0] for x in list])
print " system: %0.2fs (%0.2f%%)" % avg_deviation([x[1] for x in list])
print "elapsed: %0.2fs (%0.2f%%)" % avg_deviation([x[2] for x in list])
print " cpu: %d%% (%0.2f%%)" % avg_deviation([x[3] for x in list])
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