Add hackbench workload

Add hackbench to run tests on the Linux scheduler.

Signed-off-by: Lisa Nguyen <lisa.nguyen@linaro.org>

wlauto/workloads/hackbench/__init__.py

@@ -0,0 +1,112 @@
+#    Copyright 2013-2015 ARM Limited
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# pylint: disable=W0201, C0103
+
+from wlauto import Workload, Parameter, Executable
+
+import os
+import re
+
+hackbench_results_txt = 'hackbench_results.txt'
+
+grp_regex = re.compile(r'(?P<group>(\d+) groups)')
+fd_regex = re.compile(r'(?P<fd>(\d+) file descriptors)')
+msg_regex = re.compile(r'(?P<message>(\d+) messages)')
+bytes_regex = re.compile(r'(?P<bytes>(\d+) bytes)')
+time_regex = re.compile(r'(Time: (\d+.*))')
+
+
+class Hackbench(Workload):
+
+    name = 'hackbench'
+    description = """
+    Hackbench runs a series of tests for the Linux scheduler.
+
+    For details, go to:
+    https://github.com/linux-test-project/ltp/
+
+    """
+
+    parameters = [
+        # Workload parameters go here e.g.
+        Parameter('datasize', kind=int, default=100, override=True, mandatory=False,
+                  description='Message size in bytes.'),
+        Parameter('groups', kind=int, default=10, override=True, mandatory=False,
+                  description='Number of groups.'),
+        Parameter('loops', kind=int, default=100, override=True, mandatory=False,
+                  description='Number of loops.'),
+        Parameter('fds', kind=int, default=40, override=True, mandatory=False,
+                  description='Number of file descriptors.'),
+        Parameter('extra_params', kind=str, default='', override=True, mandatory=False,
+                  description='Extra parameters to pass in. See the hackbench man page'
+                              ' or type `hackbench --help` for list of options.')
+    ]
+
+    def setup(self, context):
+        self.command = '{} -s {} -g {} -l {} {} > {}'
+        self.device_binary = None
+        self.hackbench_result = os.path.join(self.device.working_directory, hackbench_results_txt)
+
+        self.binary_name = 'hackbench'
+        if not self.device.is_installed(self.binary_name):
+            host_binary = context.resolver.get(Executable(self, self.device.abi, self.binary_name))
+            self.device_binary = self.device.install(host_binary)
+        else:
+            self.device_binary = self.binary_name
+
+        self.command = self.command.format(self.device_binary, self.datasize, self.groups,
+                                           self.loops, self.extra_params, self.hackbench_result)
+
+    def run(self, context):
+        self.device.execute(self.command)
+
+    def update_result(self, context):
+        group_label = 'groups'
+        fd_label = 'file_descriptors'
+        msg_label = 'messages'
+        bytes_label = 'bytes'
+        time_label = 'time'
+
+        self.device.pull_file(self.hackbench_result, context.output_directory)
+
+        with open(os.path.join(context.output_directory, hackbench_results_txt)) as hackbench_file:
+            for line in hackbench_file:
+                group_match = grp_regex.search(line)
+                if group_match:
+                    context.result.add_metric(group_label, int(group_match.group(2)), group_label)
+
+                fd_match = fd_regex.search(line)
+                if fd_match:
+                    context.result.add_metric(fd_label, int(fd_match.group(2)), fd_label)
+
+                msg_match = msg_regex.search(line)
+                if msg_match:
+                    context.result.add_metric(msg_label, int(msg_match.group(2)), msg_label)
+
+                bytes_match = bytes_regex.search(line)
+                if bytes_match:
+                    context.result.add_metric(bytes_label, int(bytes_match.group(2)), bytes_label)
+
+                time_match = time_regex.search(line)
+                if time_match:
+                    context.result.add_metric(time_label, float(time_match.group(2)), 'seconds')
+
+    def teardown(self, context):
+        self.device.uninstall_executable(self.binary_name)
+        self.device.execute('rm -f {}'.format(self.hackbench_result))
+
+    def validate(self):
+        pass
+

wlauto/workloads/hackbench/src/LICENSE

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+Source for these binaries can be obtained here:
+
+http://git.kernel.org/cgit/linux/kernel/git/clrkwllms/rt-tests.git