python在linux系统下获取系统内存使用情况办法

后端开发|Python教程

python,linux系统,系统内存,使用情况

后端开发-Python教程

本文实例讲述了python在linux系统下获取系统内存使用情况的方法。分享给大家供大家参考。具体如下：

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"""Simple module for getting amount of memory used by a specified users processes on a UNIX system.It uses UNIX ps utility to get the memory usage for a specified username and pipe it to awk for summing upper application memory usage and return the total.Pythons Popen() from subprocess module is used for spawning ps and awk."""import subprocessclass MemoryMonitor(object): def __init__(self, username): """Create new MemoryMonitor instance.""" self.username = username def usage(self): """Return int containing memory used by users processes.""" self.process = subprocess.Popen("ps -u %s -o rss | awk {sum+=$1} END {print sum}\" % self.username, shell=True, stdout=subprocess.PIPE, ) self.stdout_list = municate()[0].split(\ ) return int(self.stdout_list[0])

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将上面的代码保存为：memorymonitor.py

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调用方法如下：

from memorymonitor import MemoryMonitormemory_mon = MemoryMonitor(username)used_memory = memory_mon.usage()