python 监控Linux服务器多个进程的运行情况

柔光的暖阳◎ 2022-12-15 14:03 45阅读 0赞

## 环境： ##

CentOS 7

python2.7

### 需要添加模块：psutil ###

下载

*  wget https://pypi.python.org/packages/source/p/psutil/psutil-3.2.1.tar.gz --no-check-certificate
 *  tar zxvf psutil-3.2.1.tar.gz
 *  cd psutil-3.2.1
 *  python setup.py install

### 代码： ###

import os
    
    import psutil
    import time
    
    
    def getProcessInfo(pid):
        """
        取出指定进程占用的进程名，进程实际内存,CPU使用率
        :param pid:
        :return:
        """
        p = psutil.Process(pid)
        current_time = time.strftime('%Y%m%d-%H%M%S', time.localtime(time.time()))
        cpu = p.cpu_percent()
        mem = p.memory_percent()
        line = current_time + ',' + str(cpu) + ',' + str(mem)
    
        return line
    
    def writePro(pid,pro_line):
        """
        读取出来的时间，cpu，和内存写入文件
        :param pid:
        :return:
        """
        p = psutil.Process(pid)
        with open("process_" + p.name() + '_' + str(pid) + ".csv", "a")as f:
            f.write(pro_line + "\n")
    
    
    
    def getAllProcessInfo(pid_list,delay,fin_time):
        """
        所有进程的信息，保存在文件中
        :param pid_list: 进程列表
        :param delay: 延迟时间
        :param fin_time: 需要运行时长
        :return:
        """
        all_time = 0
        while True:
            for pid in pid_list:
                proc_line = getProcessInfo(pid)
                print(proc_line)
                writePro(pid,proc_line)
            time.sleep(delay)
            all_time += delay
            if(all_time == fin_time):
                break
    
    if __name__ == '__main__':
        pid_list=[5688,15484,6508] #进程pid
        delay = 5
        fin_time = 3000 # second
        getAllProcessInfo(pid_list,delay,fin_time)