1 files changed, 57 insertions, 0 deletions
diff --git a/yardstick/benchmark/scenarios/lib/add_memory_load.py b/yardstick/benchmark/scenarios/lib/add_memory_load.py
new file mode 100644
index 000000000..26cf140d1
--- /dev/null
+++ b/yardstick/benchmark/scenarios/lib/add_memory_load.py
@@ -0,0 +1,57 @@
+# ############################################################################
+# Copyright (c) 2017 Huawei Technologies Co.,Ltd and others.
+#
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+# ############################################################################
+
+from __future__ import print_function
+from __future__ import absolute_import
+
+import logging
+
+import yardstick.ssh as ssh
+from yardstick.benchmark.scenarios import base
+
+LOG = logging.getLogger(__name__)
+
+
+class AddMemoryLoad(base.Scenario):
+    """Add memory load in server
+    """
+
+    __scenario_type__ = "AddMemoryLoad"
+
+    def __init__(self, scenario_cfg, context_cfg):
+        self.scenario_cfg = scenario_cfg
+        self.context_cfg = context_cfg
+
+        self.options = scenario_cfg.get('options', {})
+
+        self.client = ssh.SSH.from_node(self.context_cfg['host'])
+        self.client.wait(timeout=600)
+
+    def run(self, result):
+        self._add_load()
+
+    def _add_load(self):
+        try:
+            memory_load = self.options['memory_load']
+        except KeyError:
+            LOG.error('memory_load parameter must be provided')
+        else:
+            if float(memory_load) == 0:
+                return
+            cmd = 'free | awk "/Mem/ {print $2}"'
+            code, stdout, stderr = self.client.execute(cmd)
+            total = int(stdout.split()[1])
+            used = int(stdout.split()[2])
+            remain_memory = total * float(memory_load) - used
+            if remain_memory > 0:
+                count = remain_memory / 1024 / 128
+                LOG.info('Add %s vm load', count)
+                if count != 0:
+                    cmd = 'stress -t 10 -m {} --vm-keep'.format(count)
+                    self.client.execute(cmd)