GDB 7.6.50

gdb/testsuite/gdb.perf/lib/perftest/perftest.py

+# Copyright (C) 2013 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import testresult
+import reporter
+from measure import Measure
+from measure import MeasurementCpuTime
+from measure import MeasurementWallTime
+from measure import MeasurementVmSize
+
+class TestCase(object):
+    """Base class of all performance testing cases.
+
+    Each sub-class should override methods execute_test, in which
+    several GDB operations are performed and measured by attribute
+    measure.  Sub-class can also override method warm_up optionally
+    if the test case needs warm up.
+    """
+
+    def __init__(self, name, measure):
+        """Constructor of TestCase.
+
+        Construct an instance of TestCase with a name and a measure
+        which is to measure the test by several different measurements.
+        """
+
+        self.name = name
+        self.measure = measure
+
+    def execute_test(self):
+        """Abstract method to do the actual tests."""
+        raise NotImplementedError("Abstract Method.")
+
+    def warm_up(self):
+        """Do some operations to warm up the environment."""
+        pass
+
+    def run(self, warm_up=True, append=True):
+        """Run this test case.
+
+        It is a template method to invoke method warm_up,
+        execute_test, and finally report the measured results.
+        If parameter warm_up is True, run method warm_up.  If parameter
+        append is True, the test result will be appended instead of
+        overwritten.
+        """
+        if warm_up:
+            self.warm_up()
+
+        self.execute_test()
+        self.measure.report(reporter.TextReporter(append), self.name)
+
+class TestCaseWithBasicMeasurements(TestCase):
+    """Test case measuring CPU time, wall time and memory usage."""
+
+    def __init__(self, name):
+        result_factory = testresult.SingleStatisticResultFactory()
+        measurements = [MeasurementCpuTime(result_factory.create_result()),
+                        MeasurementWallTime(result_factory.create_result()),
+                        MeasurementVmSize(result_factory.create_result())]
+        super (TestCaseWithBasicMeasurements, self).__init__ (name, Measure(measurements))