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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:54:28 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:54:28 +0000 |
commit | e6918187568dbd01842d8d1d2c808ce16a894239 (patch) | |
tree | 64f88b554b444a49f656b6c656111a145cbbaa28 /src/spdk/dpdk/usertools/cpu_layout.py | |
parent | Initial commit. (diff) | |
download | ceph-e6918187568dbd01842d8d1d2c808ce16a894239.tar.xz ceph-e6918187568dbd01842d8d1d2c808ce16a894239.zip |
Adding upstream version 18.2.2.upstream/18.2.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/spdk/dpdk/usertools/cpu_layout.py')
-rwxr-xr-x | src/spdk/dpdk/usertools/cpu_layout.py | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/src/spdk/dpdk/usertools/cpu_layout.py b/src/spdk/dpdk/usertools/cpu_layout.py new file mode 100755 index 000000000..6f129b1db --- /dev/null +++ b/src/spdk/dpdk/usertools/cpu_layout.py @@ -0,0 +1,73 @@ +#!/usr/bin/env python +# SPDX-License-Identifier: BSD-3-Clause +# Copyright(c) 2010-2014 Intel Corporation +# Copyright(c) 2017 Cavium, Inc. All rights reserved. + +from __future__ import print_function +import sys +try: + xrange # Python 2 +except NameError: + xrange = range # Python 3 + +sockets = [] +cores = [] +core_map = {} +base_path = "/sys/devices/system/cpu" +fd = open("{}/kernel_max".format(base_path)) +max_cpus = int(fd.read()) +fd.close() +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(cpu) + +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_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 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: + 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) |