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#!/usr/bin/env python
#
# Copyright (c) 2018 embedded brains GmbH. All rights reserved.
#
# embedded brains GmbH
# Dornierstr. 4
# 82178 Puchheim
# Germany
# <rtems@embedded-brains.de>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
import re
import libxml2
from libxml2 import xmlNode
import matplotlib.pyplot as plt
data = open('epoch01.scn').read()
data = re.sub(r'\*\*\*.*\*\*\*', '', data)
doc = libxml2.parseDoc(data)
ctx = doc.xpathNewContext()
plt.yscale('log')
plt.title('Epoch Performance')
plt.xlabel('Active Workers')
plt.ylabel('Operation Count')
def m(n):
return int(n.getContent())
def getCounterSums(variant):
w = 1
y = []
while True:
c = map(m, ctx.xpathEval('/TestEpoch01/' + variant + '[@activeWorker="' + str(w) + '"]/Counter'))
if not c:
break
y.append(sum(c))
w = w + 1
return y
y = getCounterSums('ThreadLocalMutex')
x = range(1, len(y) + 1)
plt.plot(x, y, label = 'Thread-Local Mutex', marker = 'o')
y = getCounterSums('EnterExit')
plt.plot(x, y, label = 'Enter Exit', marker = 'o')
y = getCounterSums('EnterExitPreempt')
plt.plot(x, y, label = 'Enter Exit Preempt', marker = 'o')
y = getCounterSums('EnterListOpExit')
plt.plot(x, y, label = 'Enter List Op Exit', marker = 'o')
y = getCounterSums('EnterListOpExitPreempt')
plt.plot(x, y, label = 'Enter List Op Exit Preempt', marker = 'o')
plt.legend(loc = 'best')
plt.show()
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