python查看单个应用的内存

安装

pip3 install psutil

获取应用pid，然后获取内存大小

get_pid_cmd = "ps -ef | grep 'test' | grep -v grep | awk '{print $2}'"
agent_memory_pid = subprocess.getoutput(get_pid_cmd)

process = psutil.Process(int(agent_memory_pid))
memory = process.memory_info().rss / 1024 / 1024   (单位是兆)