1 files changed, 133 insertions, 0 deletions
diff --git a/yardstick/benchmark/scenarios/storage/storagecapacity.py b/yardstick/benchmark/scenarios/storage/storagecapacity.py
new file mode 100644
index 000000000..49e3a0339
--- /dev/null
+++ b/yardstick/benchmark/scenarios/storage/storagecapacity.py
@@ -0,0 +1,133 @@
+##############################################################################
+# Copyright (c) 2016 Huawei Technologies Co.,Ltd and other.
+#
+# 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
+##############################################################################
+import pkg_resources
+import logging
+import json
+
+import yardstick.ssh as ssh
+from yardstick.benchmark.scenarios import base
+
+LOG = logging.getLogger(__name__)
+
+
+class StorageCapacity(base.Scenario):
+    """Measure storage capacity and scale.
+
+    Parameters:
+        test_type - specified whether to measure.
+        valid test type are disk_size, block_size, disk_utilization
+            type: string
+            unit: na
+            default: "disk_size"
+        interval - specified how ofter to stat disk utilization
+            type: int
+            unit: seconds
+            default: 1
+        count - specified how many times to stat disk utilization
+            type: int
+            unit: na
+            default: 15
+
+    This scenario reads hardware specification,
+    disk size, block size and disk utilization.
+    """
+    __scenario_type__ = "StorageCapacity"
+    TARGET_SCRIPT = "storagecapacity.bash"
+
+    def __init__(self, scenario_cfg, context_cfg):
+        self.scenario_cfg = scenario_cfg
+        self.context_cfg = context_cfg
+        self.setup_done = False
+
+    def setup(self):
+        """scenario setup"""
+        self.target_script = pkg_resources.resource_filename(
+            "yardstick.benchmark.scenarios.storage",
+            StorageCapacity.TARGET_SCRIPT)
+        host = self.context_cfg['host']
+        if host is None:
+            raise RuntimeError('No right node.Please check the configuration')
+        host_user = host.get('user', 'ubuntu')
+        host_ip = host.get('ip', None)
+        host_pwd = host.get('password', 'root')
+        LOG.debug("user:%s, host:%s", host_user, host_ip)
+
+        self.client = ssh.SSH(host_user, host_ip, password=host_pwd)
+        self.client.wait(timeout=600)
+
+        # copy script to host
+        self.client.run("cat > ~/storagecapacity.sh",
+                        stdin=open(self.target_script, 'rb'))
+
+        self.setup_done = True
+
+    def _get_disk_utilization(self):
+        """Get disk utilization using iostat."""
+        options = self.scenario_cfg["options"]
+        interval = options.get('interval', 1)
+        count = options.get('count', 15)
+
+        cmd = "sudo iostat -dx %d %d | awk 'NF==14 && \
+               $1 !~ /Device/ {print $1,$14}'" % (interval, count)
+
+        LOG.debug("Executing command: %s", cmd)
+        status, stdout, stderr = self.client.execute(cmd)
+        if status:
+            raise RuntimeError(stderr)
+
+        device_name_arr = []
+        min_util_arr = []
+        max_util_arr = []
+        avg_util_arr = []
+        for row in stdout.split('\n'):
+            kv = row.split(' ')
+            if len(kv) != 2:
+                continue
+            name = kv[0]
+            util = float(kv[1])
+            if name not in device_name_arr:
+                device_name_arr.append(name)
+                min_util_arr.append(util)
+                max_util_arr.append(util)
+                avg_util_arr.append(util)
+            else:
+                i = device_name_arr.index(name)
+                min_util_arr[i] = min_util_arr[i] \
+                    if min_util_arr[i] < util else util
+                max_util_arr[i] = max_util_arr[i] \
+                    if max_util_arr[i] > util else util
+                avg_util_arr[i] += util
+        r = {}
+        for i in range(len(device_name_arr)):
+            r[device_name_arr[i]] = {"min_util": min_util_arr[i],
+                                     "max_util": max_util_arr[i],
+                                     "avg_util": avg_util_arr[i]/count}
+        return r
+
+    def run(self, result):
+        """execute the benchmark"""
+
+        if not self.setup_done:
+            self.setup()
+
+        options = self.scenario_cfg["options"]
+        test_type = options.get('test_type', 'disk_size')
+
+        if test_type == "disk_utilization":
+            r = self._get_disk_utilization()
+            result.update(r)
+        else:
+            cmd = "sudo bash storagecapacity.sh " + test_type
+
+            LOG.debug("Executing command: %s", cmd)
+            status, stdout, stderr = self.client.execute(cmd)
+            if status:
+                raise RuntimeError(stderr)
+
+            result.update(json.loads(stdout))