Hi All,
I did a lot of digging into the code in the module, win32pdhutil, and
decided to create some custom methods.
added to : import win32pdhutil
def ShowAllProcessesAsList():
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 = {}
all_process_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 items
# print "Process Name", string.join(items,",")
all_process_dict['Headings'] = items # add
headings to dict
for instance, max_instances in instance_dict.items():
for inum in xrange(max_instances+1):
hq = win32pdh.OpenQuery()
hcs = []
row = []
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]),
row.append(instance[:15])
for hc in hcs:
type, val = win32pdh.GetFormattedCounterValue(hc,
win32pdh.PDH_FMT_LONG)
# print "item : %5d" % (val),
row.append(val)
win32pdh.RemoveCounter(hc)
# print
# print ' row = ', instance ,row
all_process_dict[instance] = row # add
current row to dict
win32pdh.CloseQuery(hq)
return all_process_dict
def ShowSingleProcessAsList(sProcessName):
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 = {}
all_process_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 items
# print "Process Name", string.join(items,",")
# all_process_dict['Headings'] = items # add
headings to dict
# print 'instance dict = ', instance_dict
# print
if sProcessName in instance_dict:
instance = sProcessName
max_instances = instance_dict[sProcessName]
# print sProcessName, ' max_instances = ', max_instances
for inum in xrange(max_instances+1):
hq = win32pdh.OpenQuery()
hcs = []
row = []
for item in items:
path =
win32pdh.MakeCounterPath( (None,object,instance,None, inum, item) )
hcs.append(win32pdh.AddCounter(hq, path))
try:
win32pdh.CollectQueryData(hq)
except:
all_process_dict[sProcessName] =
[0,0,0,0,0,0,0] # process not found - set to all zeros
break
# 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]),
row.append(instance[:15])
for hc in hcs:
type, val = win32pdh.GetFormattedCounterValue(hc,
win32pdh.PDH_FMT_LONG)
# print "item : %5d" % (val),
row.append(val)
win32pdh.RemoveCounter(hc)
# print
# print ' row = ', instance ,row
all_process_dict[instance] = row # add
current row to dict
win32pdh.CloseQuery(hq)
else:
all_process_dict[sProcessName] = [0,0,0,0,0,0,0] #
process not found - set to all zeros
return all_process_dict
=============================
Demo :
import win32pdhutil # with customized methods in win32pdhutil
(above)
###################################################################
# GetMemoryStats #
###################################################################
def GetMemoryStats(sProcessName, iPauseTime):
Memory_Dict = {}
## Headings ['ProcessName', '% Processor Time', '% User Time', '%
Privileged Time', 'Virtual Bytes Peak', 'Virtual Bytes']
##machine process = {'firefox': ['firefox', 2364, 0, 0, 0,
242847744, 211558400]}
loop_counter = 0
print('\n\n** Starting Free Memory Sampler **\n\n')
print('Process : %s\n Delay : %d seconds\n\n') % (sProcessName,
iPauseTime)
print('\n\nPress : Ctrl-C to stop and output stats...\n\n')
try:
while 1:
print('Sample : %d') % loop_counter
row = []
machine_process =
win32pdhutil2.ShowSingleProcessAsList(sProcessName)
# print 'machine process = ', machine_process
row.append(machine_process[sProcessName]
[5]) # Virtual Bytes Peak
row.append(machine_process[sProcessName]
[6]) # Virtual Bytes
Memory_Dict[loop_counter] =
row # add values to the
dictionary
loop_counter += 1
time.sleep(iPauseTime)
except KeyboardInterrupt: # Ctrl-C encountered
print "End of Sample...\n\n"
return Memory_Dict
###################################################################
############# M A I N ###########################
###################################################################
def Main():
iPause_time = 5 # pause time - seconds
sProcessName = 'firefox' # Process to watch
sReportFileName = 'MemoryStats.csv' # output filename
Memory_Dict = GetMemoryStats(sProcessName, iPause_time)
outfile = open(sReportFileName,"w") # send output to a file
outfile.write('SampleTime, VirtualBytesMax, VirtualBytes\n')
for current_stat in Memory_Dict:
line = ('%s,%d,%d\n') % (current_stat, Memory_Dict[current_stat]
[0],Memory_Dict[current_stat][1] )
outfile.write(line)
outfile.close() # close output file
if __name__ == "__main__":
Main()
-------------------------
I have found that the process that you want to want to monitor needs
to be started before this script is started. The script will handle
when the process disappears and set the stats to zeros.
Enjoy!
Steve
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