forked from Imagelibrary/rtems
38 lines
1.0 KiB
Python
38 lines
1.0 KiB
Python
#
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# Copyright (c) 2014 embedded brains GmbH. All rights reserved.
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#
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# The license and distribution terms for this file may be
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# found in the file LICENSE in this distribution or at
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# http://www.rtems.org/license/LICENSE.
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#
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import libxml2
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from libxml2 import xmlNode
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import matplotlib.pyplot as plt
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doc = libxml2.parseFile("tmcontext01.scn")
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ctx = doc.xpathNewContext()
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def plot(y):
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n=len(y)
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x=range(0, n)
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plt.plot(x, y)
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plt.title("context switch timing test")
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plt.xlabel('function nest level')
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plt.ylabel('context switch time [ns]')
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for e in ["normal", "dirty"]:
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for i in ["Min", "Q1", "Q2", "Q3", "Max"]:
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y=map(xmlNode.getContent, ctx.xpathEval("/Test/ContextSwitchTest[@environment='" + e + "' and not(@load)]/Sample/" + i))
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plot(y)
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load=1
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while load > 0:
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for i in ["Min", "Q1", "Q2", "Q3", "Max"]:
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y=map(xmlNode.getContent, ctx.xpathEval("/Test/ContextSwitchTest[@environment='dirty' and @load='" + str(load) + "']/Sample/" + i))
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if len(y) > 0:
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plot(y)
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load = load + 1
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else:
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load = 0
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plt.show()
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