Support of configurable background load and implementation of LTD.CPU.RFC2544.0PacketLoss and LTD.Memory.RFC2544.0PacketLoss

Every testcase can be configured to run background load
on the DUT. Load is generated by chosen command line tool,
which must be installed according to the installation.md.
Currently 'stress' and 'stress-ng' tools are supported,
but support for new tool can be easily added.
Load can be configured by testcase configuration option 'load'.
Details about supported load generator options can be found
in conf/01_testcases.conf.

JIRA: VSPERF-23
JIRA: VSPERF-24
Change-Id: I3e1aebc0d41357f5a2764015c41ffc7e50fdbf8b
Signed-off-by: Martin Klozik <martinx.klozik@intel.com>
Reviewed-by: Billy O Mahony <billy.o.mahony@intel.com>
Reviewed-by: Maryam Tahhan <maryam.tahhan@intel.com>
Reviewed-by: Al Morton <acmorton@att.com>

2 files changed, 51 insertions, 0 deletions

diff --git a/tools/load_gen/stress_ng/__init__.py b/tools/load_gen/stress_ng/__init__.py
new file mode 100644
index 00000000..eb530a4d
--- /dev/null
+++ b/tools/load_gen/stress_ng/__init__.py
@@ -0,0 +1,16 @@
+# Copyright 2015 Intel Corporation.
+#
+# 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.
+
+"""Package with wrapper of stress-ng tool
+"""
diff --git a/tools/load_gen/stress_ng/stress_ng.py b/tools/load_gen/stress_ng/stress_ng.py
new file mode 100644
index 00000000..c2592dd1
--- /dev/null
+++ b/tools/load_gen/stress_ng/stress_ng.py
@@ -0,0 +1,35 @@
+# Copyright 2015 Intel Corporation.
+#
+# 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.
+
+"""Module with implementation of wrapper around the stress-ng tool
+"""
+
+import logging
+from tools.load_gen.stress.stress import Stress
+
+class StressNg(Stress):
+    """Wrapper around stress-ng tool, which generates load based on
+    testcase configuration parameter 'load'
+    """
+    _process_args = {
+        'cmd': ['sudo', 'stress-ng'],
+        'timeout': 5,
+        'logfile': '/tmp/stress-ng.log',
+        'expect': r'stress-ng: info:',
+        'name': 'stress-ng'
+    }
+    _logger = logging.getLogger(__name__)
+
+    def __init__(self, stress_config):
+        super(StressNg, self).__init__(stress_config)