74 lines
2.1 KiB
Python
Executable File
74 lines
2.1 KiB
Python
Executable File
#!/usr/bin/env python
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# SPDX-License-Identifier: BSD-3-Clause
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# Copyright(c) 2010-2014 Intel Corporation
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# Copyright(c) 2017 Cavium, Inc. All rights reserved.
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from __future__ import print_function
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import sys
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try:
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xrange # Python 2
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except NameError:
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xrange = range # Python 3
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sockets = []
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cores = []
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core_map = {}
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base_path = "/sys/devices/system/cpu"
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fd = open("{}/kernel_max".format(base_path))
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max_cpus = int(fd.read())
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fd.close()
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for cpu in xrange(max_cpus + 1):
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try:
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fd = open("{}/cpu{}/topology/core_id".format(base_path, cpu))
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except IOError:
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continue
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except:
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break
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core = int(fd.read())
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fd.close()
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fd = open("{}/cpu{}/topology/physical_package_id".format(base_path, cpu))
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socket = int(fd.read())
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fd.close()
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if core not in cores:
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cores.append(core)
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if socket not in sockets:
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sockets.append(socket)
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key = (socket, core)
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if key not in core_map:
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core_map[key] = []
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core_map[key].append(cpu)
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print(format("=" * (47 + len(base_path))))
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print("Core and Socket Information (as reported by '{}')".format(base_path))
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print("{}\n".format("=" * (47 + len(base_path))))
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print("cores = ", cores)
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print("sockets = ", sockets)
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print("")
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max_processor_len = len(str(len(cores) * len(sockets) * 2 - 1))
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max_thread_count = len(list(core_map.values())[0])
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max_core_map_len = (max_processor_len * max_thread_count) \
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+ len(", ") * (max_thread_count - 1) \
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+ len('[]') + len('Socket ')
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max_core_id_len = len(str(max(cores)))
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output = " ".ljust(max_core_id_len + len('Core '))
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for s in sockets:
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output += " Socket %s" % str(s).ljust(max_core_map_len - len('Socket '))
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print(output)
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output = " ".ljust(max_core_id_len + len('Core '))
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for s in sockets:
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output += " --------".ljust(max_core_map_len)
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output += " "
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print(output)
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for c in cores:
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output = "Core %s" % str(c).ljust(max_core_id_len)
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for s in sockets:
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if (s,c) in core_map:
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output += " " + str(core_map[(s, c)]).ljust(max_core_map_len)
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else:
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output += " " * (max_core_map_len + 1)
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print(output)
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