我认为这是我在这里提出的第一个问题，通常可以找到我需要的所有答案(提前致谢)

好的，我的问题我已经编写了一个 python 程序，它将在线程中监视一个进程并将结果输出到一个 csv 文件以备后用。这段代码运行良好，我使用 win32pdhutil 作为计数器和 WMI，Win32_PerfRawData_PerfProc_Process 作为 CPU %time。我现在被要求监视一个 WPF 应用程序，特别是监视用户对象和 GDI 对象。

这是我遇到问题的地方，我似乎找不到任何 python 支持在这两个计数器上收集指标。这两个计数器在任务管理器中很容易找到 我觉得奇怪的是关于这两个计数器的信息很少。我特别关注收集这些以查看我们是否有内存泄漏，除了已经安装的 python 之外，我不想在系统上安装任何其他东西。请大家帮忙寻找解决方案。

我使用的是python 3.3.1，这将在windows平台上运行(主要是win7和win8) 这是我用来收集数据的代码

def gatherIt(self,whoIt,whatIt,type,wiggle,process_info2):
    #this is the data gathering function thing
    data=0.0
    data1="wobble"
    if type=="counter":
        #gather data according to the attibutes
        try:
            data = win32pdhutil.FindPerformanceAttributesByName(whoIt, counter=whatIt)
        except:
            #a problem occoured with process not being there not being there....
            data1="N/A"

    elif type=="cpu":
       try:
            process_info={}#used in the gather CPU bassed on service
            for x in range(2):
                for procP in wiggle.Win32_PerfRawData_PerfProc_Process(name=whoIt):
                    n1 = int(procP.PercentProcessorTime)
                    d1 = int(procP.Timestamp_Sys100NS)
                    #need to get the process id to change per cpu look...
                    n0, d0 = process_info.get (whoIt, (0, 0))     
                    try:
                        percent_processor_time = (float (n1 - n0) / float (d1 - d0)) *100.0
                        #print whoIt, percent_processor_time
                    except ZeroDivisionError:
                        percent_processor_time = 0.0
                    # pass back the n0 and d0
                    process_info[whoIt] = (n1, d1)
                #end for loop (this should take into account multiple cpu's)
            # end for range to allow for a current cpu time rather that cpu percent over sampleint
            if percent_processor_time==0.0:
                data=0.0
            else:
                data=percent_processor_time
        except:
            data1="N/A"

    else:
        #we have done something wrong so data =0
        data1="N/A"
    #endif
    if data == "[]":
        data=0.0
        data1="N/A"
    if data == "" :
        data=0.0
        data1="N/A"
    if data == " ":
        data=0.0
        data1="N/A"
    if data1!="wobble" and data==0.0:
        #we have not got the result we were expecting so add a n/a
        data=data1
    return data

干杯

如果有人试图运行它，则针对正确的 cpu 时序问题进行编辑 :D

最佳答案

所以经过长时间的搜索后，我能够将一些东西混合在一起，从而获得所需的信息。

import time
from ctypes import *
from ctypes.wintypes import *
import win32pdh

# with help from here http://coding.derkeiler.com/Archive/Python/comp.lang.python/2007-10/msg00717.html
# the following has been mashed together to get the info needed

def GetProcessID(name):
    object = "Process"
    items, instances = win32pdh.EnumObjectItems(None, None, object, win32pdh.PERF_DETAIL_WIZARD)
    val = None
    if name in instances :
        tenQuery = win32pdh.OpenQuery()
        tenarray = [ ]
        item = "ID Process"
        path = win32pdh.MakeCounterPath( ( None, object, name, None, 0, item ) )
        tenarray.append( win32pdh.AddCounter( tenQuery, path ) )
        win32pdh.CollectQueryData( tenQuery )
        time.sleep( 0.01 )
        win32pdh.CollectQueryData( tenQuery )
        for tencounter in tenarray:
            type, val = win32pdh.GetFormattedCounterValue( tencounter, win32pdh.PDH_FMT_LONG )
            win32pdh.RemoveCounter( tencounter )
        win32pdh.CloseQuery( tenQuery )
    return val

processIDs = GetProcessID('OUTLOOK') # Remember this is case sensitive
PQI = 0x400
#open a handle on to the process so that we can query it
OpenProcessHandle = windll.kernel32.OpenProcess(PQI, 0, processIDs)
# OK so now we have opened the process now we want to query it
GR_GDIOBJECTS, GR_USEROBJECTS = 0, 1
print(windll.user32.GetGuiResources(OpenProcessHandle, GR_GDIOBJECTS))
print(windll.user32.GetGuiResources(OpenProcessHandle, GR_USEROBJECTS))
#so we have what we want we now close the process handle
windll.kernel32.CloseHandle(OpenProcessHandle)

希望对你有帮助

关于python - 如何使用 python 收集 GDI 和用户对象的性能指标，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/15658426/