Python win32pdh.PDH_FMT_LONG属性代码示例

# 需要导入模块: import win32pdh [as 别名]
# 或者: from win32pdh import PDH_FMT_LONG [as 别名]
def GetPerformanceAttributes(object, counter, instance=None,
                                 inum=-1, format=None, machine=None):
        # NOTE: Many counters require 2 samples to give accurate results,
        # including "% Processor Time" (as by definition, at any instant, a
        # thread's CPU usage is either 0 or 100).  To read counters like this,
        # you should copy this function, but keep the counter open, and call
        # CollectQueryData() each time you need to know.
        # See http://msdn.microsoft.com/library/en-us/dnperfmo/html/perfmonpt2.asp (dead link)
        # My older explanation for this was that the "AddCounter" process forced
        # the CPU to 100%, but the above makes more sense :)
        import win32pdh
        if format is None:
            format = win32pdh.PDH_FMT_LONG
        path = win32pdh.MakeCounterPath( (machine, object, instance, None, inum, counter))
        hq = win32pdh.OpenQuery()
        try:
            hc = win32pdh.AddCounter(hq, path)
            try:
                win32pdh.CollectQueryData(hq)
                type, val = win32pdh.GetFormattedCounterValue(hc, format)
                return val
            finally:
                win32pdh.RemoveCounter(hc)
        finally:
            win32pdh.CloseQuery(hq) 

# 需要导入模块: import win32pdh [as 别名]
# 或者: from win32pdh import PDH_FMT_LONG [as 别名]
def GetPerformanceAttributes(object, counter, instance=None,
                                 inum=-1, format=None, machine=None):
        # NOTE: Many counters require 2 samples to give accurate results,
        # including "% Processor Time" (as by definition, at any instant, a
        # thread's CPU usage is either 0 or 100).  To read counters like this,
        # you should copy this function, but keep the counter open, and call
        # CollectQueryData() each time you need to know.
        # See http://msdn.microsoft.com/library/en-us/dnperfmo/html/perfmonpt2.asp
        # My older explanation for this was that the "AddCounter" process forced
        # the CPU to 100%, but the above makes more sense :)
        import win32pdh
        if format is None:
            format = win32pdh.PDH_FMT_LONG
        path = win32pdh.MakeCounterPath( (machine, object, instance, None, inum, counter))
        hq = win32pdh.OpenQuery()
        try:
            hc = win32pdh.AddCounter(hq, path)
            try:
                win32pdh.CollectQueryData(hq)
                type, val = win32pdh.GetFormattedCounterValue(hc, format)
                return val
            finally:
                win32pdh.RemoveCounter(hc)
        finally:
            win32pdh.CloseQuery(hq) 

# 需要导入模块: import win32pdh [as 别名]
# 或者: from win32pdh import PDH_FMT_LONG [as 别名]
def collectdataslave(self,format = win32pdh.PDH_FMT_LONG):
		'''
		### Not a public method
		Called only when the Query is known to be open, runs over
		the whole set of counters, appending results to the temp,
		returns the values as a list.
		'''
		try:
			win32pdh.CollectQueryData(self._base)
			temp = []
			for counter in self.counters:
				ok = 0
				try:
					if counter:
						temp.append(win32pdh.GetFormattedCounterValue(counter, format)[1])
						ok = 1
				except win32api.error:
					pass
				if not ok:
					temp.append(-1) # a better way to signal failure???
			return temp
		except win32api.error: # will happen if, for instance, no counters are part of the query and we attempt to collect data for it.
			return [-1] * len(self.counters)
	# pickle functions 

# 需要导入模块: import win32pdh [as 别名]
# 或者: from win32pdh import PDH_FMT_LONG [as 别名]
def addinstcounter(self, object, counter,machine=None,objtype = 'Process',volatile=1,format = win32pdh.PDH_FMT_LONG):
		'''
		The purpose of using an instcounter is to track particular
		instances of a counter object (e.g. a single processor, a single
		running copy of a process).  For instance, to track all python.exe
		instances, you would need merely to ask:
			query.addinstcounter('python','Virtual Bytes')
		You can find the names of the objects and their available counters 
		by doing an addcounterbybrowsing() call on a query object (or by
		looking in performance monitor's add dialog.)
		
		Beyond merely rearranging the call arguments to make more sense,
		if the volatile flag is true, the instcounters also recalculate
		the paths of the available instances on every call to open the
		query.
		'''
		if volatile:
			self.volatilecounters.append((object,counter,machine,objtype,format))
		else:
			self.paths[len(self.paths):] = self.getinstpaths(object,counter,machine,objtype,format) 

# 需要导入模块: import win32pdh [as 别名]
# 或者: from win32pdh import PDH_FMT_LONG [as 别名]
def getinstpaths(self,object,counter,machine=None,objtype='Process',format = win32pdh.PDH_FMT_LONG):
		'''
		### Not an end-user function
		Calculate the paths for an instance object. Should alter
		to allow processing for lists of object-counter pairs.
		'''
		items, instances = win32pdh.EnumObjectItems(None,None,objtype, -1)
		# find out how many instances of this element we have...
		instances.sort()
		try:
			cur = instances.index(object)
		except ValueError:
			return [] # no instances of this object
		temp = [object]
		try:
			while instances[cur+1] == object:
				temp.append(object)
				cur = cur+1
		except IndexError: # if we went over the end
			pass
		paths = []
		for ind in range(len(temp)):
			# can this raise an error?
			paths.append(win32pdh.MakeCounterPath( (machine,'Process',object,None,ind,counter) ) )
		return paths # should also return the number of elements for naming purposes 

# 需要导入模块: import win32pdh [as 别名]
# 或者: from win32pdh import PDH_FMT_LONG [as 别名]
def GetPerformanceAttributes(object, counter, instance = None, inum=-1,
                             format = win32pdh.PDH_FMT_LONG, machine=None):
    # NOTE: Many counters require 2 samples to give accurate results,
    # including "% Processor Time" (as by definition, at any instant, a
    # thread's CPU usage is either 0 or 100).  To read counters like this,
    # you should copy this function, but keep the counter open, and call
    # CollectQueryData() each time you need to know.
    # See http://support.microsoft.com/default.aspx?scid=kb;EN-US;q262938
    # and http://msdn.microsoft.com/library/en-us/dnperfmo/html/perfmonpt2.asp
    # My older explanation for this was that the "AddCounter" process forced
    # the CPU to 100%, but the above makes more sense :)
    path = win32pdh.MakeCounterPath( (machine,object,instance, None, inum,counter) )
    hq = win32pdh.OpenQuery()
    try:
        hc = win32pdh.AddCounter(hq, path)
        try:
            win32pdh.CollectQueryData(hq)
            type, val = win32pdh.GetFormattedCounterValue(hc, format)
            return val
        finally:
            win32pdh.RemoveCounter(hc)
    finally:
        win32pdh.CloseQuery(hq) 

# 需要导入模块: import win32pdh [as 别名]
# 或者: from win32pdh import PDH_FMT_LONG [as 别名]
def GetPerformanceAttributes(object, counter, instance = None,
                                 inum=-1, format = None, machine=None):
        # NOTE: Many counters require 2 samples to give accurate results,
        # including "% Processor Time" (as by definition, at any instant, a
        # thread's CPU usage is either 0 or 100).  To read counters like this,
        # you should copy this function, but keep the counter open, and call
        # CollectQueryData() each time you need to know.
        # See http://msdn.microsoft.com/library/en-us/dnperfmo/html/perfmonpt2.asp
        # My older explanation for this was that the "AddCounter" process forced
        # the CPU to 100%, but the above makes more sense :)
        import win32pdh
        if format is None: format = win32pdh.PDH_FMT_LONG
        path = win32pdh.MakeCounterPath( (machine, object, instance, None, inum, counter) )
        hq = win32pdh.OpenQuery()
        try:
            hc = win32pdh.AddCounter(hq, path)
            try:
                win32pdh.CollectQueryData(hq)
                type, val = win32pdh.GetFormattedCounterValue(hc, format)
                return val
            finally:
                win32pdh.RemoveCounter(hc)
        finally:
            win32pdh.CloseQuery(hq) 

# 需要导入模块: import win32pdh [as 别名]
# 或者: from win32pdh import PDH_FMT_LONG [as 别名]
def memusage(processName="python", instance=0):
        # from win32pdhutil, part of the win32all package
        import win32pdh
        return GetPerformanceAttributes("Process", "Virtual Bytes",
                                        processName, instance,
                                        win32pdh.PDH_FMT_LONG, None) 

# 需要导入模块: import win32pdh [as 别名]
# 或者: from win32pdh import PDH_FMT_LONG [as 别名]
def collectdata(self,format = win32pdh.PDH_FMT_LONG):
		'''
		Returns the formatted current values for the Query
		'''
		if self._base: # we are currently open, don't change this
			return self.collectdataslave(format)
		else: # need to open and then close the _base, should be used by one-offs and elements tracking application instances
			self.open() # will raise QueryError if couldn't open the query
			temp = self.collectdataslave(format)
			self.close() # will always close
			return temp 

# 需要导入模块: import win32pdh [as 别名]
# 或者: from win32pdh import PDH_FMT_LONG [as 别名]
def ShowAllProcesses():
    object = find_pdh_counter_localized_name("Process")
    items, instances = win32pdh.EnumObjectItems(None,None,object,
                                                win32pdh.PERF_DETAIL_WIZARD)
    # Need to track multiple instances of the same name.
    instance_dict = {}
    for instance in instances:
        try:
            instance_dict[instance] = instance_dict[instance] + 1
        except KeyError:
            instance_dict[instance] = 0

    # Bit of a hack to get useful info.
    items = [find_pdh_counter_localized_name("ID Process")] + items[:5]
    print "Process Name", ",".join(items)
    for instance, max_instances in instance_dict.iteritems():
        for inum in xrange(max_instances+1):
            hq = win32pdh.OpenQuery()
            hcs = []
            for item in items:
                path = win32pdh.MakeCounterPath( (None,object,instance,
                                                  None, inum, item) )
                hcs.append(win32pdh.AddCounter(hq, path))
            win32pdh.CollectQueryData(hq)
            # as per http://support.microsoft.com/default.aspx?scid=kb;EN-US;q262938, some "%" based
            # counters need two collections
            time.sleep(0.01)
            win32pdh.CollectQueryData(hq)
            print "%-15s\t" % (instance[:15]),
            for hc in hcs:
                type, val = win32pdh.GetFormattedCounterValue(hc, win32pdh.PDH_FMT_LONG)
                print "%5d" % (val),
                win32pdh.RemoveCounter(hc)
            print
            win32pdh.CloseQuery(hq)

# NOTE: This BrowseCallback doesn't seem to work on Vista for markh.
# XXX - look at why!?