如何在python 2.7 32bit中获得64bit进程的内存工作集? [英] How to get the memory working set of a 64bit process in python 2.7 32bit?

问题描述

对于自动化测试框架，我需要监视我开始的64位进程的工作集.我以某种方式找不到能够监视超过4GB数据的解决方案.我尝试了WMI和psutil，但是两者都卡在32位边界中.我做这样的事情:

for an automated test framework I need to monitor the working set of a 64 bit process that I started. Somehow I can't find a solution that allows to monitor more than 4GB data. I tried WMI and psutil, but both are stuck in 32bit borders. I do something like this:

import wmi
import psutil
import subprocess 

def measure_memory( process ):
    mem = psutil.Process( process.pid ).get_memory_info().rss
    return "%.2f M" % (float(mem)/1024./1024.)

def measure_memory_wmi( process ):
    w = wmi.WMI('.')
    result = w.query("SELECT WorkingSet FROM Win32_PerfRawData_PerfProc_Process WHERE IDProcess="+str(process.pid))
    subset = result[0]
    return "%.2f M" % (float(subset.WorkingSet)/1024./1024.)

process = subprocess.Popen( [path_to_program, '-option'] )
print measure_memory( process )
print measure_memory_wmi( process )

这提供了:

-0.00 M
4096.00 M

在流程浏览器提供

6.806.976 K

还有另一种获取真实数据的方法吗?

is there another way to get the real data?

谢谢！

推荐答案

好吧，在发生一些WMI工具/谷歌事故后，我发现了另一种用短语表达可提供正确数字的查询的方法.这是新代码:

Ok, after some WMI tools / google accident I found another way to phrase a query that delivers correct numbers. This is the new code:

def measure_memory( process ):
    w = wmi.WMI('.')
    result = w.query("SELECT WorkingSetSize FROM Win32_Process WHERE ProcessID="+str(process.pid))
    print result
    subset = result[0]
    return "%.2f" % (float(subset.WorkingSetSize)/1024./1024.)

这似乎现在可行.任何人都可以确认这对我来说比现在更有效吗?

This seems to work now. Can anyone confirm that this should work for more than my case now?

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