1 files changed, 76 insertions, 0 deletions
diff --git a/yardstick/network_services/helpers/cpu.py b/yardstick/network_services/helpers/cpu.py
new file mode 100644
index 000000000..a5ba6c31e
--- /dev/null
+++ b/yardstick/network_services/helpers/cpu.py
@@ -0,0 +1,76 @@
+# Copyright (c) 2016-2017 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.
+
+
+class CpuSysCores(object):
+
+    def __init__(self, connection=""):
+        self.core_map = {}
+        self.connection = connection
+
+    def _open_cpuinfo(self):
+        lines = []
+        lines = self.connection.execute("cat /proc/cpuinfo")[1].split(u'\n')
+        return lines
+
+    def _get_core_details(self, lines):
+        core_details = []
+        core_lines = {}
+        for line in lines:
+            if line.strip():
+                    name, value = line.split(":", 1)
+                    core_lines[name.strip()] = value.strip()
+            else:
+                    core_details.append(core_lines)
+                    core_lines = {}
+
+        return core_details
+
+    def get_core_socket(self):
+        lines = self.connection.execute("lscpu")[1].split(u'\n')
+        num_cores = self._get_core_details(lines)
+        for num in num_cores:
+            self.core_map["cores_per_socket"] = num["Core(s) per socket"]
+            self.core_map["thread_per_core"] = num["Thread(s) per core"]
+
+        lines = self._open_cpuinfo()
+        core_details = self._get_core_details(lines)
+        for core in core_details:
+            for k, v in core.items():
+                if k == "physical id":
+                    if core["physical id"] not in self.core_map:
+                        self.core_map[core['physical id']] = []
+                    self.core_map[core['physical id']].append(
+                        core["processor"])
+
+        return self.core_map
+
+    def validate_cpu_cfg(self, vnf_cfg=None):
+        if vnf_cfg is None:
+            vnf_cfg = {
+                'lb_config': 'SW',
+                'lb_count': 1,
+                'worker_config': '1C/1T',
+                'worker_threads': 1
+            }
+        if self.core_map["thread_per_core"] == 1 and \
+                vnf_cfg["worker_config"] == "1C/2T":
+            return -1
+
+        if vnf_cfg['lb_config'] == 'SW':
+            num_cpu = int(vnf_cfg["worker_threads"]) + 5
+            if int(self.core_map["cores_per_socket"]) < num_cpu:
+                return -1
+
+        return 0