utils.py revision f2a3ef46f75d2196a93d3ed27f4d1fcf22b54fbe 
1"""Utility functions for the memory tests.
2"""
3
4from datetime import datetime
5
6
7def compute_total_diff(line, base_time):
8  """
9    Computes the difference in time the line was recorded from the base time.
10
11    An example of a line is:
12    [4688:4688:0701/010151:ERROR:perf_provider_chromeos.cc(228)]...
13
14    Here, the month is 07, the day is 01 and the time is 01:01:51.
15
16    line- the line that contains the time the record was taken
17    base_time- the base time to measure our timestamp from
18    """
19  date = line.strip().split(':')[2].split('/')
20  timestamp = datetime(2014, int(date[0][0:2]), int(date[0][2:4]),
21                       int(date[1][0:2]), int(date[1][2:4]), int(date[1][4:6]))
22  return (timestamp - base_time).total_seconds()
23