57 lines
1.7 KiB
Python
57 lines
1.7 KiB
Python
#!/usr/bin/python3
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# -*- coding: utf-8 -*-
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# Copyright (c) 2019 Huawei Technologies Co., Ltd.
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# A-Tune is licensed under the Mulan PSL v1.
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# You can use this software according to the terms and conditions of the Mulan PSL v1.
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# You may obtain a copy of Mulan PSL v1 at:
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# http://license.coscl.org.cn/MulanPSL
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# THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
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# PURPOSE.
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# See the Mulan PSL v1 for more details.
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# Create: 2019-10-29
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"""
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The sub class of the monitor, used to collect the CPU isolation info.
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"""
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import re
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import sys
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import subprocess
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from monitor.common import *
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class CpuIsolate(Monitor):
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"""To collect the CPU isolation info"""
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_module = "CPU"
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_purpose = "ISOLATION"
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_path = "/proc/cmdline"
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def __init__(self, user=None):
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Monitor.__init__(self, user)
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self.__cmd = "cat"
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def _get(self, para=None):
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output = subprocess.check_output("{cmd} {path}".format(
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cmd=self.__cmd, path=self._path).split())
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return output.decode()
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def decode(self, info, para=None):
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"""
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decode collected CPU isolation info.
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:param info: The collected info string
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:param para: The option for decode, para is None
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:returns info: decoded info
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"""
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pattern = re.compile(r"isolcpus=([\d,]*)", re.MULTILINE)
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cpus = pattern.findall(info)
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return " ".join(cpus).strip()
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if __name__ == "__main__":
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if len(sys.argv) != 3:
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print('usage: ' + sys.argv[0] + ' fmt path')
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sys.exit(-1)
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ct = CpuIsolate("UT")
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ct.report(sys.argv[1], sys.argv[2])
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