tools: move to usertools

[dpdk.git] / usertools / cpu_layout.py

diff --git a/usertools/cpu_layout.py b/usertools/cpu_layout.py
new file mode 100755 (executable)
index 0000000..0e049a6
--- /dev/null
+++ b/usertools/cpu_layout.py
@@ -0,0 +1,98 @@
+#!/usr/bin/env python
+
+#
+#   BSD LICENSE
+#
+#   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+#   All rights reserved.
+#
+#   Redistribution and use in source and binary forms, with or without
+#   modification, are permitted provided that the following conditions
+#   are met:
+#
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in
+#       the documentation and/or other materials provided with the
+#       distribution.
+#     * Neither the name of Intel Corporation nor the names of its
+#       contributors may be used to endorse or promote products derived
+#       from this software without specific prior written permission.
+#
+#   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+#   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+#   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+#   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+#   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+#   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+#   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+#   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+#   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+#   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+from __future__ import print_function
+import sys
+
+sockets = []
+cores = []
+core_map = {}
+
+fd = open("/proc/cpuinfo")
+lines = fd.readlines()
+fd.close()
+
+core_details = []
+core_lines = {}
+for line in lines:
+    if len(line.strip()) != 0:
+        name, value = line.split(":", 1)
+        core_lines[name.strip()] = value.strip()
+    else:
+        core_details.append(core_lines)
+        core_lines = {}
+
+for core in core_details:
+    for field in ["processor", "core id", "physical id"]:
+        if field not in core:
+            print("Error getting '%s' value from /proc/cpuinfo" % field)
+            sys.exit(1)
+        core[field] = int(core[field])
+
+    if core["core id"] not in cores:
+        cores.append(core["core id"])
+    if core["physical id"] not in sockets:
+        sockets.append(core["physical id"])
+    key = (core["physical id"], core["core id"])
+    if key not in core_map:
+        core_map[key] = []
+    core_map[key].append(core["processor"])
+
+print("============================================================")
+print("Core and Socket Information (as reported by '/proc/cpuinfo')")
+print("============================================================\n")
+print("cores = ", cores)
+print("sockets = ", sockets)
+print("")
+
+max_processor_len = len(str(len(cores) * len(sockets) * 2 - 1))
+max_core_map_len = max_processor_len * 2 + len('[, ]') + len('Socket ')
+max_core_id_len = len(str(max(cores)))
+
+output = " ".ljust(max_core_id_len + len('Core '))
+for s in sockets:
+    output += " Socket %s" % str(s).ljust(max_core_map_len - len('Socket '))
+print(output)
+
+output = " ".ljust(max_core_id_len + len('Core '))
+for s in sockets:
+    output += " --------".ljust(max_core_map_len)
+    output += " "
+print(output)
+
+for c in cores:
+    output = "Core %s" % str(c).ljust(max_core_id_len)
+    for s in sockets:
+        output += " " + str(core_map[(s, c)]).ljust(max_core_map_len)
+    print(output)