mirror of
https://github.com/GNS3/gns3-server
synced 2024-12-01 04:38:12 +00:00
51 lines
1.8 KiB
Python
51 lines
1.8 KiB
Python
|
# -*- coding: utf-8 -*-
|
||
|
|
#
|
||
|
|
# Copyright (C) 2018 GNS3 Technologies Inc.
|
||
|
|
#
|
||
|
|
# This program is free software: you can redistribute it and/or modify
|
||
|
|
# it under the terms of the GNU General Public License as published by
|
||
|
|
# the Free Software Foundation, either version 3 of the License, or
|
||
|
|
# (at your option) any later version.
|
||
|
|
#
|
||
|
|
# This program is distributed in the hope that it will be useful,
|
||
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
# GNU General Public License for more details.
|
||
|
|
#
|
||
|
|
# You should have received a copy of the GNU General Public License
|
||
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
|
||
|
|
import psutil
|
||
|
|
import time
|
||
|
|
|
||
|
|
|
||
|
|
class PingStats:
|
||
|
|
"""
|
||
|
|
Ping messages are regularly sent to the client to keep the connection open.
|
||
|
|
We send with it some information about server load.
|
||
|
|
"""
|
||
|
|
|
||
|
|
_last_measurement = 0.0 # time of last measurement
|
||
|
|
_last_cpu_percent = 0.0 # last cpu_percent
|
||
|
|
_last_mem_percent = 0.0 # last virtual_memory().percent
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def get(cls):
|
||
|
|
"""
|
||
|
|
Get ping statistics
|
||
|
|
|
||
|
|
:returns: hash
|
||
|
|
"""
|
||
|
|
stats = {}
|
||
|
|
cur_time = time.time()
|
||
|
|
# minimum interval for getting CPU and memory statistics
|
||
|
|
if cur_time < cls._last_measurement or \
|
||
|
|
cur_time > cls._last_measurement + 1.9:
|
||
|
|
cls._last_measurement = cur_time
|
||
|
|
# Non blocking call to get cpu usage. First call will return 0
|
||
|
|
cls._last_cpu_percent = psutil.cpu_percent(interval=None)
|
||
|
|
cls._last_mem_percent = psutil.virtual_memory().percent
|
||
|
|
stats["cpu_usage_percent"] = cls._last_cpu_percent
|
||
|
|
stats["memory_usage_percent"] = cls._last_mem_percent
|
||
|
|
return stats
|