Add ebizzy workload

Add ebizzy to allow users to run a workload resembling common
web server application workloads.

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

wlauto/workloads/ebizzy/__init__.py

@@ -0,0 +1,92 @@
+#    Copyright 2012-2015 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
+
+results_txt = 'ebizzy_results.txt'
+record_regex = re.compile(r'(?P<record>\d+) records/s')
+result_regex = re.compile(r'(?P<metric>\D+)(?P<value>\d+.*\b)(?P<unit>\S+)')
+
+class Ebizzy(Workload):
+
+    name = 'ebizzy'
+    description = """
+    ebizzy is designed to generate a workload resembling common web 
+    application server workloads.  It is highly threaded, has a large in-memory
+    working set with low locality, and allocates and deallocates memory frequently.
+    When running most efficiently, it will max out the CPU.
+
+    ebizzy description taken from the source code at
+    https://github.com/linux-test-project/ltp/tree/master/utils/benchmark/ebizzy-0.3
+
+    """
+
+    parameters = [
+        # Workload parameters go here e.g.
+        Parameter('threads', kind=int, default=2, description='Number of threads to execute.'),
+        Parameter('seconds', kind=int, default=10, description='Number of seconds.'),
+        Parameter('chunks', kind=int, default=10,
+                  description='Number of memory chunks to allocate.'),
+        Parameter('extra_params', kind=str, default='',
+                  description='Extra parameters to pass in (e.g. -M to disable mmap).'
+                              ' See ebizzy -? for full list of options.')
+    ]
+
+    def setup(self, context):
+        timeout_buf = 10
+        self.command = '{} -t {} -S {} -n {} {} > {}'
+        self.ebizzy_results = os.path.join(self.device.working_directory, results_txt)
+        self.device_binary = None
+        self.run_timeout = self.seconds + timeout_buf
+
+        self.binary_name = 'ebizzy'
+        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.threads, self.seconds,
+                                           self.chunks, self.extra_params, self.ebizzy_results)
+
+
+    def run(self, context):
+        self.device.execute(self.command, timeout=self.run_timeout)
+
+    def update_result(self, context):
+        self.device.pull_file(self.ebizzy_results, context.output_directory)
+
+        with open(os.path.join(context.output_directory, results_txt)) as ebizzy_file:
+            for line in ebizzy_file:
+                record_match = record_regex.search(line)
+                if record_match:
+                    context.result.add_metric('total_recs', record_match.group('record'),
+                                              'records/s')
+
+                results_match = result_regex.search(line)
+                if results_match:
+                    context.result.add_metric(results_match.group('metric'),
+                                              results_match.group('value'),
+                                              results_match.group('unit'))
+
+    def teardown(self, context):
+        self.device.uninstall_executable(self.device_binary)
+
+    def validate(self):
+        pass

wlauto/workloads/ebizzy/src/LICENSE

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+ebizzy binary source code can be found here:
+
+https://github.com/linux-test-project/ltp/tree/master/utils/benchmark/ebizzy-0.3