1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
#!/usr/bin/env python
#
# Copyright (c) 2008 Google, Inc.
# Contributed by Arun Sharma <arun.sharma@google.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
#
# System wide monitoring example. Copied from syst.c
#
# Run as: ./sys.py -c cpulist -e eventlist
from __future__ import print_function
import sys
import os
import optparse
import time
import struct
import perfmon
if __name__ == '__main__':
parser = optparse.OptionParser()
parser.add_option("-e", "--events", help="Events to use",
action="store", dest="events")
parser.add_option("-c", "--cpulist", help="CPUs to monitor",
action="store", dest="cpulist")
parser.set_defaults(cpulist="0")
parser.set_defaults(events="PERF_COUNT_HW_CPU_CYCLES")
(options, args) = parser.parse_args()
cpus = options.cpulist.split(',')
cpus = [ int(c) for c in cpus ]
if options.events:
events = options.events.split(",")
else:
raise Exception("You need to specify events to monitor")
s = perfmon.SystemWideSession(cpus, events)
s.start()
# Measuring loop
while 1:
time.sleep(1)
# read the counts
for c in cpus:
for i in range(0, len(events)):
count = struct.unpack("L", s.read(c, i))[0]
print("""CPU%d: %s\t%lu""" % (c, events[i], count))
|
