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"""Utility functions for the memory tests.
"""
from datetime import datetime
def compute_total_diff(line, base_time):
"""
Computes the difference in time the line was recorded from the base time.
An example of a line is:
[4688:4688:0701/010151:ERROR:perf_provider_chromeos.cc(228)]...
Here, the month is 07, the day is 01 and the time is 01:01:51.
line- the line that contains the time the record was taken
base_time- the base time to measure our timestamp from
"""
date = line.strip().split(':')[2].split('/')
timestamp = datetime(2014, int(date[0][0:2]), int(date[0][2:4]),
int(date[1][0:2]), int(date[1][2:4]), int(date[1][4:6]))
return (timestamp - base_time).total_seconds()
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