#!/usr/bin/env python
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2010-2014 Intel Corporation
+# Copyright(c) 2017 Cavium, Inc. All rights reserved.
-#
-# 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
+try:
+ xrange # Python 2
+except NameError:
+ xrange = range # Python 3
+
+if sys.version_info.major < 3:
+ print("WARNING: Python 2 is deprecated for use in DPDK, and will not work in future releases.", file=sys.stderr)
+ print("Please use Python 3 instead", file=sys.stderr)
sockets = []
cores = []
core_map = {}
-
-fd = open("/proc/cpuinfo")
-lines = fd.readlines()
+base_path = "/sys/devices/system/cpu"
+fd = open("{}/kernel_max".format(base_path))
+max_cpus = int(fd.read())
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"])
+for cpu in xrange(max_cpus + 1):
+ try:
+ fd = open("{}/cpu{}/topology/core_id".format(base_path, cpu))
+ except IOError:
+ continue
+ except:
+ break
+ core = int(fd.read())
+ fd.close()
+ fd = open("{}/cpu{}/topology/physical_package_id".format(base_path, cpu))
+ socket = int(fd.read())
+ fd.close()
+ if core not in cores:
+ cores.append(core)
+ if socket not in sockets:
+ sockets.append(socket)
+ key = (socket, core)
if key not in core_map:
core_map[key] = []
- core_map[key].append(core["processor"])
+ core_map[key].append(cpu)
-print("============================================================")
-print("Core and Socket Information (as reported by '/proc/cpuinfo')")
-print("============================================================\n")
+print(format("=" * (47 + len(base_path))))
+print("Core and Socket Information (as reported by '{}')".format(base_path))
+print("{}\n".format("=" * (47 + len(base_path))))
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_thread_count = len(list(core_map.values())[0])
+max_core_map_len = (max_processor_len * max_thread_count) \
+ + len(", ") * (max_thread_count - 1) \
+ + len('[]') + len('Socket ')
max_core_id_len = len(str(max(cores)))
output = " ".ljust(max_core_id_len + len('Core '))
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)
+ if (s,c) in core_map:
+ output += " " + str(core_map[(s, c)]).ljust(max_core_map_len)
+ else:
+ output += " " * (max_core_map_len + 1)
print(output)
git.droids-corp.org / dpdk.git / blobdiff