126 lines
4.1 KiB
Python
Executable File
126 lines
4.1 KiB
Python
Executable File
#!/usr/bin/python3
|
|
# -*- coding: utf-8 -*-
|
|
# Copyright (c) 2019 Huawei Technologies Co., Ltd.
|
|
# A-Tune is licensed under the Mulan PSL v1.
|
|
# You can use this software according to the terms and conditions of the Mulan PSL v1.
|
|
# You may obtain a copy of Mulan PSL v1 at:
|
|
# http://license.coscl.org.cn/MulanPSL
|
|
# THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
|
|
# IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
|
|
# PURPOSE.
|
|
# See the Mulan PSL v1 for more details.
|
|
# Create: 2019-10-29
|
|
|
|
"""
|
|
The sub class of the monitor, used to collect the system load average statistics.
|
|
"""
|
|
|
|
import sys
|
|
import logging
|
|
import subprocess
|
|
import getopt
|
|
import re
|
|
|
|
if __name__ == "__main__":
|
|
sys.path.insert(0, "./../../")
|
|
from monitor.common import *
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
class SysLdavg(Monitor):
|
|
"""To collect the system load average statistics"""
|
|
_module = "SYS"
|
|
_purpose = "LDAVG"
|
|
_option = "-q {int} 1"
|
|
|
|
def __init__(self, user=None):
|
|
Monitor.__init__(self, user)
|
|
self.__cmd = "sar"
|
|
self.__interval = 1
|
|
self.decode.__func__.__doc__ = Monitor.decode.__doc__ % (
|
|
"--fields=time/runq-sz/plist-sz/ldavg-1/ldavg-5/ldavg-15/blocked/task-util")
|
|
|
|
def _get(self, para=None):
|
|
if para is not None:
|
|
opts, args = getopt.getopt(para.split(), None, ['interval='])
|
|
for opt, val in opts:
|
|
if opt in ('--interval'):
|
|
if val.isdigit():
|
|
self.__interval = int(val)
|
|
else:
|
|
err = ValueError(
|
|
"Invalid parameter: {opt}={val}".format(
|
|
opt=opt, val=val))
|
|
logger.error(
|
|
"{}.{}: {}".format(
|
|
self.__class__.__name__,
|
|
sys._getframe().f_code.co_name,
|
|
str(err)))
|
|
raise err
|
|
continue
|
|
|
|
output = subprocess.check_output(
|
|
"{cmd} {opt}".format(
|
|
cmd=self.__cmd,
|
|
opt=self._option.format(
|
|
int=self.__interval)).split())
|
|
return output.decode()
|
|
|
|
def decode(self, info, para):
|
|
if para is None:
|
|
return info
|
|
|
|
keyword = {"time": 0,
|
|
"runq-sz": 1,
|
|
"plist-sz": 2,
|
|
"ldavg-1": 3,
|
|
"ldavg-5": 4,
|
|
"ldavg-15": 5,
|
|
"blocked": 6,
|
|
"task-util": "task-util"}
|
|
|
|
keys = []
|
|
ret = ""
|
|
|
|
opts, args = getopt.getopt(para.split(), None, ['fields='])
|
|
for opt, val in opts:
|
|
if opt in ('--fields'):
|
|
keys.append(keyword[val])
|
|
continue
|
|
|
|
pattern = re.compile(
|
|
"^(\d.*?)\ {1,}(\d*)\ {1,}(\d*)\ {1,}(\d*\.?\d*)\ {1,}(\d*\.?\d*)\ {1,}(\d*\.?\d*)\ {1,}(\d*)",
|
|
re.ASCII | re.MULTILINE)
|
|
searchObj = pattern.findall(info)
|
|
if len(searchObj) == 0:
|
|
err = LookupError("Fail to find data")
|
|
logger.error(
|
|
"{}.{}: {}".format(
|
|
self.__class__.__name__,
|
|
sys._getframe().f_code.co_name,
|
|
str(err)))
|
|
raise err
|
|
|
|
for i in keys:
|
|
if type(i).__name__ == 'int':
|
|
ret = ret + " " + searchObj[-1][i]
|
|
elif i == "task-util":
|
|
with open("/proc/sys/kernel/threads-max", 'r') as f:
|
|
threads_max = f.read()
|
|
util = int(searchObj[-1][keyword["plist-sz"]]) / \
|
|
int(threads_max) * 100
|
|
ret = ret + " " + str(util)
|
|
return ret
|
|
|
|
|
|
if __name__ == "__main__":
|
|
if len(sys.argv) != 3:
|
|
print('usage: ' + sys.argv[0] + ' fmt path')
|
|
sys.exit(-1)
|
|
ct = SysLdavg("UT")
|
|
ct.report(
|
|
sys.argv[1],
|
|
sys.argv[2],
|
|
"--interval=2;--fields=plist-sz --fields=ldavg-5 --fields=task-util")
|