一种获取pid信息与资源的方式

什么也不说了，上例子看吧。

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1. # -*- coding: utf-8-*-
   
2. import psutil
   
3. 
   
4. def get_proc_by_id(pid):
   
5.     return psutil.Process(pid)
   
6. 
   
7. def get_proc_by_name(pname):
   
8.     """ get process by name
   
9. 
   
10.     return the first process if there are more than one
    
11.     """
    
12.     for proc in psutil.process_iter():
    
13.         try:
    
14.             if proc.name().lower() == pname.lower():
    
15.                 return proc # return if found one
    
16.         except psutil.AccessDenied:
    
17.             pass
    
18.         except psutil.NoSuchProcess:
    
19.             pass
    
20.     return None
    
21. 
    
22. 
    
23. 
    
24. if '__main__' == __name__:
    
25.     print get_proc_by_name("chrome.exe")
    
26.     print get_proc_by_id(9604)
    
27.     proc = psutil.Process(9604)
    
28. 
    
29.     total = psutil.virtual_memory().total
    
30.     #rss, vss = proc.memory_info()
    
31.     percent = proc.memory_percent()
    
32. 
    
33.     #print "rss: %s Byte, vss: %s Byte" % (rss, vss)
    
34.     print "total: %.2f(M)" % (float(total)/1024/1024/1024)
    
35.     #print "percent: %.2f%%, calc: %.2f%%" % (percent, 100*float(rss)/total)

参考:http://www.cnblogs.com/misspy/p/3851327.html