-
Notifications
You must be signed in to change notification settings - Fork 1
/
monitor_pid.py
169 lines (136 loc) · 5.34 KB
/
monitor_pid.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
#!/usr/bin/env python3
import argparse
import logging
import psutil
from datetime import datetime
import pandas as pd
import time
import os
import platform
# need to keep global references to get cpu percent
_subprocesses = {}
def main():
parser = argparse.ArgumentParser(description='Record performance information about a given process ID (pid)')
parser.add_argument('pid', type=str,
help='the process id')
parser.add_argument('name', type=str,
help='name of the dataset')
parser.add_argument('csvfile', type=str,
help='path to the csv output')
args = parser.parse_args()
monitor(pid=args.pid, name=args.name, csvfile=args.csvfile)
def monitor(pid, name, csvfile="monitor_output.csv", callback=None, interval="0.5", withchildren=True):
logging.info("Output file: " + csvfile)
logging.info("Monitoring PID: " + pid)
proc = psutil.Process(int(pid))
logging.info("Found process with pid: " + pid)
df = None
csvexists = False
if os.path.exists(csvfile):
csvexists = True
count = 0
try:
# Start main event loop
while True:
# do the callback here to still allo run without callback
if(not callback is None):
if(callback()):
break
# Find current time
now = datetime.now()
try:
proc_status = proc.status()
except psutil.NoSuchProcess: # pragma: no cover
break
# process still alive?
if proc_status in [psutil.STATUS_ZOMBIE, psutil.STATUS_DEAD]:
print("Process has already finished")
break
count+=1
# get metrics
cpu = _get_cpu(proc, withchildren)
rss = _get_mem_rss(proc, withchildren)
vms = _get_mem_vms(proc, withchildren)
if platform.system() != "Darwin":
ioread = _get_io_read(proc, withchildren)
iowrite = _get_io_write(proc, withchildren)
else:
ioread = 0
iowrite = 0
# we will report the main pid but sum all child process information if requested
data = {
'pid': [pid],
'name': [name], # name of the dataset
'mpc': [count], # count of measuring point
'cpu': [cpu], # in % , 1.0 = 100%
'mem': [rss / 1024 ** 2 + vms / 1024 ** 2], # total, in MB
'rss_mem': [rss / 1024 ** 2], # in MB
'virt_mem': [vms / 1024 ** 2], # in MB
'disk_io': [(ioread + iowrite)/ 1024 ** 2 ], # read_bytes + write_bytes in mb
'disk_read': [ioread / 1024 ** 2 ], # read_bytes + write_bytes , in mb
'disk_write': [iowrite / 1024 ** 2] # read_bytes + write_bytes, in mb
}
newdf = pd.DataFrame(data)
if( csvexists ):
newdf.to_csv(csvfile, sep=';', mode='a', index=False, header=None) # append to the csv
else:
newdf.to_csv(csvfile, sep=';', mode='a', index=False) # append to the csv with header
csvexists =True
if interval is not None:
sleeptime=float(interval)
time.sleep(sleeptime)
except KeyboardInterrupt: # pragma: no cover
pass
def _get_cpu(proc, withchildren):
ret = proc.cpu_percent()
if(withchildren):
for child in proc.children(recursive=True):
try:
pid = child.pid
cp =_subprocesses.get(pid)
if(cp is None):
_subprocesses[pid] = child
cp = child
child_cpu = cp.cpu_percent()
ret += child_cpu
except psutil.NoSuchProcess:
print("Child process no longer exists")
return ret
def _get_mem_rss(proc, withchildren):
ret = proc.memory_info().rss
if(withchildren):
for child in proc.children(recursive=True):
try:
ret += child.memory_info().rss
except psutil.NoSuchProcess:
print("Child process no longer exists")
return ret
def _get_mem_vms(proc, withchildren):
ret = proc.memory_info().vms
if(withchildren):
for child in proc.children(recursive=True):
try:
ret += child.memory_info().vms
except psutil.NoSuchProcess:
print("Child process no longer exists")
return ret
def _get_io_read(proc, withchildren):
ret = proc.io_counters().read_bytes
if(withchildren):
for child in proc.children(recursive=True):
try:
ret += child.io_counters().read_bytes
except psutil.NoSuchProcess:
print("Child process no longer exists")
return ret
def _get_io_write(proc, withchildren):
ret = proc.io_counters().write_bytes
if(withchildren):
for child in proc.children(recursive=True):
try:
ret += child.io_counters().write_bytes
except psutil.NoSuchProcess:
print("Child process no longer exists")
return ret
if __name__ == "__main__":
main()