perf: add TCP Nginx+LDPRELOAD suites

1. Suite steup add download nginx
2. Add nginx-1.14.2/1.15.0 ldp test suite
3. Add NginxUtils,NginxConfigGenerator method
4. Taskset the PID of nginx to the unused cores in VPP and these cores are under NIC's NUMA ID
5. cleanup add Kill Processes - nohup

Signed-off-by: xizhanx <xix.zhang@intel.com>
Change-Id: Idbf0e4ec3bf63e88281a8e3e34f52e00a6801c85
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>

1 files changed, 23 insertions, 1 deletions

diff --git a/resources/libraries/python/CpuUtils.py b/resources/libraries/python/CpuUtils.py
index 170cbe6b2e..293d6b6913 100644
--- a/resources/libraries/python/CpuUtils.py
+++ b/resources/libraries/python/CpuUtils.py
@@ -255,7 +255,7 @@ class CpuUtils:
             cpu_list_0 = cpu_list[:cpu_list_len // CpuUtils.NR_OF_THREADS]
             cpu_list_1 = cpu_list[cpu_list_len // CpuUtils.NR_OF_THREADS:]
             cpu_range = f"{cpu_list_0[0]}{sep}{cpu_list_0[-1]}," \
-                f"{cpu_list_1[0]}{sep}{cpu_list_1[-1]}"
+                        f"{cpu_list_1[0]}{sep}{cpu_list_1[-1]}"
         else:
             cpu_range = f"{cpu_list[0]}{sep}{cpu_list[-1]}"
 
@@ -469,3 +469,25 @@ class CpuUtils:
         return CpuUtils.cpu_slice_of_list_per_node(
             node, cpu_node=cpu_node, skip_cnt=skip_cnt, cpu_cnt=cpu_cnt,
             smt_used=False)
+
+    @staticmethod
+    def get_cpu_idle_list(node, cpu_node, smt_used, cpu_alloc_str, sep=u","):
+        """
+        Get idle CPU List
+        :param node: Node dictionary with cpuinfo.
+        :param cpu_node: Numa node number.
+        :param smt_used: True - we want to use SMT, otherwise false.
+        :param cpu_alloc_str: vpp used cores.
+        :param sep: Separator, default: ",".
+        :type node: dict
+        :type cpu_node: int
+        :type smt_used: bool
+        :type cpu_alloc_str: str
+        :type smt_used: bool
+        :type sep: str
+        :rtype: list
+        """
+        cpu_list = CpuUtils.cpu_list_per_node(node, cpu_node, smt_used)
+        cpu_idle_list = [i for i in cpu_list
+                         if str(i) not in cpu_alloc_str.split(sep)]
+        return cpu_idle_list