Python进程使用的总内存? [英] Total memory used by Python process?

问题描述

Python程序是否有办法确定当前正在使用多少内存?我已经看到了有关单个对象的内存使用情况的讨论，但是我需要的是该过程的总内存使用情况，以便可以确定何时需要开始丢弃缓存的数据.

Is there a way for a Python program to determine how much memory it's currently using? I've seen discussions about memory usage for a single object, but what I need is total memory usage for the process, so that I can determine when it's necessary to start discarding cached data.

推荐答案

Here is a useful solution that works for various operating systems, including Linux, Windows 7, etc.:

import os
import psutil
process = psutil.Process(os.getpid())
print(process.memory_info().rss)  # in bytes 

在我当前使用psutil 5.6.3安装的python 2.7中，最后一行应该是

On my current Python 2.7 install with psutil 5.6.3, the last line should be

print(process.memory_info()[0])

相反(API有所更改).

instead (there was a change in the API).

注意:如果尚未安装，请执行pip install psutil.

Note: do pip install psutil if it is not installed yet.

这篇关于Python进程使用的总内存?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！