loadgen: Support for Stressor-VMs as a Loadgen

This patch adds support for stressor-VMs as a loadgen in VSPERF.
The changes include:
1. 07_loadgen.conf: User can specify the stressor-VM specific
configuration. It includes, image-name, path, nics, memory, etc.
2. loadgen/stressorvm/stressor_vm.py: This file implement ILoadGenerator
interface. It implements all the necessary APIs for starting and
stopping the loads.
3. Fixed Pylint Error
4. Removed the network device configuration from qemu-system-x86_64
command as stessor-vm mostly focus on CPU and memory stressing.
5. Moved the creation of loadgen after the VNFs are setup in
testcase.py.
6. Fixed copyright issues.
7. Removed python-3 checking. Improved exception handling
8. Set Default loadgen as DummyLoadGen
9. Improved OSError Printing with directory name and error
10. Update the year in license. 2017-2018.

JIRA: VSPERF-504

Change-Id: Iad6c0780c184f8e36eddcbcae2a580f41118e8dc
Signed-off-by: Sridhar K. N. Rao <sridhar.rao@spirent.com>

1 files changed, 16 insertions, 0 deletions

diff --git a/tools/load_gen/stressorvm/__init__.py b/tools/load_gen/stressorvm/__init__.py
new file mode 100644
index 00000000..6a22d81c
--- /dev/null
+++ b/tools/load_gen/stressorvm/__init__.py
@@ -0,0 +1,16 @@
+# Copyright 2017-2018 Spirent Communications
+#
+# 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 for Stressor-VMs
+"""