97 lines
2.8 KiB
Python
Executable File
97 lines
2.8 KiB
Python
Executable File
#!/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 file handles util info.
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"""
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import sys
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import logging
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import subprocess
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import getopt
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import re
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if __name__ == "__main__":
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sys.path.insert(0, "./../../")
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from monitor.common import *
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logger = logging.getLogger(__name__)
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class SysFdUtil(Monitor):
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"""To collect the file handles util info"""
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_module = "SYS"
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_purpose = "FDUTIL"
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_option = "/proc/sys/fs/file-nr"
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def __init__(self, user=None):
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Monitor.__init__(self, user)
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self.decode.__func__.__doc__ = Monitor.decode.__doc__ % (
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"--fields=allocated/pending/maximum/fd-util")
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def _get(self, para=None):
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with open(self._option, 'r') as f:
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fdinfo = f.read()
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return fdinfo
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def decode(self, info, para):
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if para is None:
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return info
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keyword = {"allocated": 0,
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"pending": 1,
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"maximum": 2,
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"fd-util": "fd-util"}
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keys = []
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ret = ""
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opts, args = getopt.getopt(para.split(), None, ['fields='])
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for opt, val in opts:
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if opt in ('--fields'):
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keys.append(keyword[val])
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continue
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pattern = re.compile(
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"^(\d*)\s{1,}(\d*)\s{1,}(\d*)",
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re.ASCII | re.MULTILINE)
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searchObj = pattern.findall(info)
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if len(searchObj) == 0:
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err = LookupError("Fail to find data")
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logger.error(
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"{}.{}: {}".format(
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self.__class__.__name__,
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sys._getframe().f_code.co_name,
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str(err)))
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raise err
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for i in keys:
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if type(i).__name__ == 'int':
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ret = ret + " " + searchObj[-1][i]
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elif i == "fd-util":
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util = int(searchObj[-1][keyword["allocated"]]) / \
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int(searchObj[-1][keyword["maximum"]]) * 100
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ret = ret + " " + str(util)
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return ret
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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 = SysFdUtil("UT")
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ct.report(
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sys.argv[1],
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sys.argv[2],
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";--fields=fd-util")
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