想用python写个得到cpu，内存和网络的使用率的小程序，主要在windows系统中，要是可以跨平台最好不过。

不知道python自带的有没有这个lib，要是没有能不能推荐个lib。

谢谢

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lvhongqing2008
2007-09-03



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To： Qiangning Hong

   从pywin32 <http://sourceforge.net/projects/pywin32>刚装上，你的程序调通了。

   在看文档，以后在遇到什么问题再请教。

谢谢

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从网上搜了个你以前写的：

# perfmon, a python library to get the system performance infomation via
# win32pdh

# Copyright (C) 2004  Qiangning Hong 

# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.

# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Lesser General Public License for more details.

# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

"""Monitor CPU Usage.

Supported Environment:
    - Windows 2000/XP

Prerequirements:
    - pywin32 (was win32all)
"""

import win32pdh

class PerfInfo:
    def __init__(self, counter_path):
        self.path = counter_path
        if win32pdh.ValidatePath(self.path) != 0:
            raise Exception('Invalid path: %s' % counter_path)
        self.query = self.counter = None

    def __del__(self):
        self.stop()

    def start(self):
        try:
            self.query = win32pdh.OpenQuery(None, 0)
            self.counter = win32pdh.AddCounter(self.query, self.path, 0)
        except:
            self.stop()
            raise

    def stop(self):
        if self.counter is not None:
            win32pdh.RemoveCounter(self.counter)
        if self.query is not None:
            win32pdh.CloseQuery(self.query)
        self.counter = self.query = None

    def get_value(self):
        win32pdh.CollectQueryData(self.query)
        status, value = win32pdh.GetFormattedCounterValue(self.counter,
                win32pdh.PDH_FMT_LONG)
        return value


class CPUUsage(PerfInfo):
    def __init__(self):
        PerfInfo.__init__(self, r'\Processor(_Total)\% Processor Time')

    def start(self):
        # Ignore the first collected data because it always is 99%
        PerfInfo.start(self)
        self.get_value()


def _test():
    import time

    cpu_usage = CPUUsage()
    cpu_usage.start()

    try:
        while True:
            percent = cpu_usage.get_value()
            print 'CPU Usage: %d%% (Press Ctrl-C to stop)' % percent
            time.sleep(1)
    except KeyboardInterrupt:
        pass

    cpu_usage.stop()

if __name__ == '__main__':
    _test()



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Ö÷Ìâ: Re: [python-chinese]ʲôlib¿ÉÒԵõ½cpu,ÄÚ´æºÍÍøÂçµÄʹÓÃÂÊ

 


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# perfmon, a python library to get the system performance infomation via
# win32pdh

# Copyright (C) 2004  Qiangning Hong 

# This library is free software; you can redistribute it and/or 
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.

# This library is distributed in the hope that it will be useful, 
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Lesser General Public License for more details.

# You should have received a copy of the GNU Lesser General Public 
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

"""Monitor CPU Usage.

Supported Environment: 
    - Windows 2000/XP
    
Prerequirements:
    - pywin32 (was win32all)
"""

import win32pdh

class PerfInfo:
    def __init__(self, counter_path):
        self.path = counter_path 
        if win32pdh.ValidatePath(self.path) != 0:
            raise Exception('Invalid path: %s' % counter_path)
        self.query = self.counter = None

    def __del__(self):
        self.stop ()

    def start(self):
        try:
            self.query = win32pdh.OpenQuery(None, 0)
            self.counter = win32pdh.AddCounter(self.query, self.path, 0)
        except:
            self.stop ()
            raise

    def stop(self):
        if self.counter is not None:
            win32pdh.RemoveCounter(self.counter)
        if self.query is not None:
            win32pdh.CloseQuery(self.query )
        self.counter = self.query = None

    def get_value(self):
        win32pdh.CollectQueryData(self.query)
        status, value = win32pdh.GetFormattedCounterValue(self.counter,
                win32pdh.PDH_FMT_LONG)
        return value
            

class CPUUsage(PerfInfo):
    def __init__(self):
        PerfInfo.__init__(self, r'\Processor(_Total)\% Processor Time')

    def start(self): 
        # Ignore the first collected data because it always is 99%
        PerfInfo.start(self)
        self.get_value()


def _test():
    import time

    cpu_usage = CPUUsage()
    cpu_usage.start() 

    try:
        while True:
            percent = cpu_usage.get_value()
            print 'CPU Usage: %d%% (Press Ctrl-C to stop)' % percent
            time.sleep(1)
    except KeyboardInterrupt: 
        pass
        
    cpu_usage.stop()

if __name__ == '__main__':
    _test()



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On 9/3/07, 边 江 <borderj在gmail.com> wrote:
> 从网上搜了个你以前写的：

嗯，今天发给你的是后来的进化版本。简化了程序结构，增加了内存占用信息。

-- 
Qiangning Hong
http://www.douban.com/people/hongqn/

我这里有个在win32下提取系统基本信息，包括CPU使用率/内存使用情况的Python扩展包，用C写的，附带二进制安装包。因为是公司开发的，如果想要需要收一定费用。
想要就私下联系我吧。