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  • Committer: Zoltán Balogh
  • Date: 2015-09-22 10:29:24 UTC
  • mto: (1000.623.16 staging)
  • mto: This revision was merged to the branch mainline in revision 1231.
  • Revision ID: zoltan@bakter.hu-20150922102924-dgrqcgmblzpbnmtx
Integrated application startup time profiling tool

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app-launch-profiler/app-launch-profiler-lttng.py
 
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#!/usr/bin/env python3
 
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# Copyright 2015 Canonical Ltd.
 
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#
 
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# This program is free software; you can redistribute it and/or modify
 
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# it under the terms of the GNU Lesser General Public License as published by
 
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# the Free Software Foundation; version 2.1.
 
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#
 
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# This program is distributed in the hope that it will be useful,
 
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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# GNU Lesser General Public License for more details.
 
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#
 
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# You should have received a copy of the GNU Lesser General Public License
 
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# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
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#
 
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# Author: Benjamin Zeller <benjamin.zeller@canonical.com>
 
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import babeltrace
 
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import sys
 
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from pprint import pprint
 
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class MyCounter(dict):
 
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    def __missing__(self, key):
 
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        return 0
 
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if __name__ == '__main__':
 
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    col = babeltrace.TraceCollection()
 
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    if col.add_traces_recursive(sys.argv[1], 'ctf') is None:
 
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        raise RuntimeError('Cannot add trace')
 
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    first_event = -1
 
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    iterations  = 0
 
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    events_in_iteration = 4
 
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    numbers     = MyCounter()
 
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    minNumbers  = MyCounter()
 
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    maxNumbers  = MyCounter()
 
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    for event in col.events:
 
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        if (event.name == "app:invokeApplauncher"):
 
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            if (events_in_iteration != 4):
 
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                raise RuntimeError("Wrong Nr of events: "+str(events_in_iteration))
 
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            events_in_iteration = 1
 
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            first_event = event.timestamp
 
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            print("Event "+event.name+" occurs after: "+str(0))
 
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            iterations+=1
 
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        else:
 
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            events_in_iteration += 1
 
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            duration = event.timestamp-first_event
 
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            numbers[event.name] += duration
 
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            if minNumbers[event.name] == 0:
 
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                minNumbers[event.name] = duration
 
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            elif minNumbers[event.name] > duration:
 
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                minNumbers[event.name] = duration
 
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            if maxNumbers[event.name] < duration:
 
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               maxNumbers[event.name] = duration
 
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            print("Event "+event.name+" occurs after: "+str((event.timestamp-first_event)/1000/1000/1000))
 
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    for event in numbers:
 
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        print("---------- Event "+event+" ----------")
 
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        print("Min: "+str(minNumbers[event] /1000/1000/1000))
 
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        print("Max: "+str(maxNumbers[event] /1000/1000/1000))
 
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        print("Avg: "+str(numbers[event] / iterations /1000/1000/1000))