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procinfo.py
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#!/usr/bin/env python3
# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Print detailed information about a process.
Author: Giampaolo Rodola' <[email protected]>
$ python3 scripts/procinfo.py
pid 4600
name chrome
parent 4554 (bash)
exe /opt/google/chrome/chrome
cwd /home/giampaolo
cmdline /opt/google/chrome/chrome
started 2016-09-19 11:12
cpu-tspent 27:27.68
cpu-times user=8914.32, system=3530.59,
children_user=1.46, children_system=1.31
cpu-affinity [0, 1, 2, 3, 4, 5, 6, 7]
memory rss=520.5M, vms=1.9G, shared=132.6M, text=95.0M, lib=0B,
data=816.5M, dirty=0B
memory % 3.26
user giampaolo
uids real=1000, effective=1000, saved=1000
uids real=1000, effective=1000, saved=1000
terminal /dev/pts/2
status sleeping
nice 0
ionice class=IOPriority.IOPRIO_CLASS_NONE, value=0
num-threads 47
num-fds 379
I/O read_count=96.6M, write_count=80.7M,
read_bytes=293.2M, write_bytes=24.5G
ctx-switches voluntary=30426463, involuntary=460108
children PID NAME
4605 cat
4606 cat
4609 chrome
4669 chrome
open-files PATH
/opt/google/chrome/icudtl.dat
/opt/google/chrome/snapshot_blob.bin
/opt/google/chrome/natives_blob.bin
/opt/google/chrome/chrome_100_percent.pak
[...]
connections PROTO LOCAL ADDR REMOTE ADDR STATUS
UDP 10.0.0.3:3693 *:* NONE
TCP 10.0.0.3:55102 172.217.22.14:443 ESTABLISHED
UDP 10.0.0.3:35172 *:* NONE
TCP 10.0.0.3:32922 172.217.16.163:443 ESTABLISHED
UDP :::5353 *:* NONE
UDP 10.0.0.3:59925 *:* NONE
threads TID USER SYSTEM
11795 0.7 1.35
11796 0.68 1.37
15887 0.74 0.03
19055 0.77 0.01
[...]
total=47
res-limits RLIMIT SOFT HARD
virtualmem infinity infinity
coredumpsize 0 infinity
cputime infinity infinity
datasize infinity infinity
filesize infinity infinity
locks infinity infinity
memlock 65536 65536
msgqueue 819200 819200
nice 0 0
openfiles 8192 65536
maxprocesses 63304 63304
rss infinity infinity
realtimeprio 0 0
rtimesched infinity infinity
sigspending 63304 63304
stack 8388608 infinity
mem-maps RSS PATH
381.4M [anon]
62.8M /opt/google/chrome/chrome
15.8M /home/giampaolo/.config/google-chrome/Default/History
6.6M /home/giampaolo/.config/google-chrome/Default/Favicons
[...]
"""
import argparse
import datetime
import socket
import sys
import psutil
from psutil._common import bytes2human
ACCESS_DENIED = ''
NON_VERBOSE_ITERATIONS = 4
RLIMITS_MAP = {
"RLIMIT_AS": "virtualmem",
"RLIMIT_CORE": "coredumpsize",
"RLIMIT_CPU": "cputime",
"RLIMIT_DATA": "datasize",
"RLIMIT_FSIZE": "filesize",
"RLIMIT_MEMLOCK": "memlock",
"RLIMIT_MSGQUEUE": "msgqueue",
"RLIMIT_NICE": "nice",
"RLIMIT_NOFILE": "openfiles",
"RLIMIT_NPROC": "maxprocesses",
"RLIMIT_NPTS": "pseudoterms",
"RLIMIT_RSS": "rss",
"RLIMIT_RTPRIO": "realtimeprio",
"RLIMIT_RTTIME": "rtimesched",
"RLIMIT_SBSIZE": "sockbufsize",
"RLIMIT_SIGPENDING": "sigspending",
"RLIMIT_STACK": "stack",
"RLIMIT_SWAP": "swapuse",
}
def print_(a, b):
if sys.stdout.isatty() and psutil.POSIX:
fmt = "\x1b[1;32m{:<13}\x1b[0m {}".format(a, b)
else:
fmt = "{:<11} {}".format(a, b)
print(fmt)
def str_ntuple(nt, convert_bytes=False):
if nt == ACCESS_DENIED:
return ""
if not convert_bytes:
return ", ".join([f"{x}={getattr(nt, x)}" for x in nt._fields])
else:
return ", ".join(
[f"{x}={bytes2human(getattr(nt, x))}" for x in nt._fields]
)
def run(pid, verbose=False):
try:
proc = psutil.Process(pid)
pinfo = proc.as_dict(ad_value=ACCESS_DENIED)
except psutil.NoSuchProcess as err:
sys.exit(str(err))
# collect other proc info
with proc.oneshot():
try:
parent = proc.parent()
parent = f"({parent.name()})" if parent else ""
except psutil.Error:
parent = ''
try:
pinfo['children'] = proc.children()
except psutil.Error:
pinfo['children'] = []
if pinfo['create_time']:
started = datetime.datetime.fromtimestamp(
pinfo['create_time']
).strftime('%Y-%m-%d %H:%M')
else:
started = ACCESS_DENIED
# here we go
print_('pid', pinfo['pid'])
print_('name', pinfo['name'])
print_('parent', f"{pinfo['ppid']} {parent}")
print_('exe', pinfo['exe'])
print_('cwd', pinfo['cwd'])
print_('cmdline', ' '.join(pinfo['cmdline']))
print_('started', started)
cpu_tot_time = datetime.timedelta(seconds=sum(pinfo['cpu_times']))
cpu_tot_time = "{}:{}.{}".format(
cpu_tot_time.seconds // 60 % 60,
str(cpu_tot_time.seconds % 60).zfill(2),
str(cpu_tot_time.microseconds)[:2],
)
print_('cpu-tspent', cpu_tot_time)
print_('cpu-times', str_ntuple(pinfo['cpu_times']))
if hasattr(proc, "cpu_affinity"):
print_("cpu-affinity", pinfo["cpu_affinity"])
if hasattr(proc, "cpu_num"):
print_("cpu-num", pinfo["cpu_num"])
print_('memory', str_ntuple(pinfo['memory_info'], convert_bytes=True))
print_('memory %', round(pinfo['memory_percent'], 2))
print_('user', pinfo['username'])
if psutil.POSIX:
print_('uids', str_ntuple(pinfo['uids']))
if psutil.POSIX:
print_('uids', str_ntuple(pinfo['uids']))
if psutil.POSIX:
print_('terminal', pinfo['terminal'] or '')
print_('status', pinfo['status'])
print_('nice', pinfo['nice'])
if hasattr(proc, "ionice"):
try:
ionice = proc.ionice()
except psutil.Error:
pass
else:
if psutil.WINDOWS:
print_("ionice", ionice)
else:
print_(
"ionice",
f"class={ionice.ioclass}, value={ionice.value}",
)
print_('num-threads', pinfo['num_threads'])
if psutil.POSIX:
print_('num-fds', pinfo['num_fds'])
if psutil.WINDOWS:
print_('num-handles', pinfo['num_handles'])
if 'io_counters' in pinfo:
print_('I/O', str_ntuple(pinfo['io_counters'], convert_bytes=True))
if 'num_ctx_switches' in pinfo:
print_("ctx-switches", str_ntuple(pinfo['num_ctx_switches']))
if pinfo['children']:
template = "{:<6} {}"
print_("children", template.format("PID", "NAME"))
for child in pinfo['children']:
try:
print_("", template.format(child.pid, child.name()))
except psutil.AccessDenied:
print_("", template.format(child.pid, ""))
except psutil.NoSuchProcess:
pass
if pinfo['open_files']:
print_('open-files', 'PATH')
for i, file in enumerate(pinfo['open_files']):
if not verbose and i >= NON_VERBOSE_ITERATIONS:
print_("", "[...]")
break
print_('', file.path)
else:
print_('open-files', '')
if pinfo['net_connections']:
template = "{:<5} {:<25} {:<25} {}"
print_(
'connections',
template.format("PROTO", "LOCAL ADDR", "REMOTE ADDR", "STATUS"),
)
for conn in pinfo['net_connections']:
if conn.type == socket.SOCK_STREAM:
type = 'TCP'
elif conn.type == socket.SOCK_DGRAM:
type = 'UDP'
else:
type = 'UNIX'
lip, lport = conn.laddr
if not conn.raddr:
rip, rport = '*', '*'
else:
rip, rport = conn.raddr
line = template.format(
type,
f"{lip}:{lport}",
f"{rip}:{rport}",
conn.status,
)
print_('', line)
else:
print_('connections', '')
if pinfo['threads'] and len(pinfo['threads']) > 1:
template = "{:<5} {:>12} {:>12}"
print_("threads", template.format("TID", "USER", "SYSTEM"))
for i, thread in enumerate(pinfo['threads']):
if not verbose and i >= NON_VERBOSE_ITERATIONS:
print_("", "[...]")
break
print_("", template.format(*thread))
print_('', f"total={len(pinfo['threads'])}")
else:
print_('threads', '')
if hasattr(proc, "rlimit"):
res_names = [x for x in dir(psutil) if x.startswith("RLIMIT")]
resources = []
for res_name in res_names:
try:
soft, hard = proc.rlimit(getattr(psutil, res_name))
except psutil.AccessDenied:
pass
else:
resources.append((res_name, soft, hard))
if resources:
template = "{:<12} {:>15} {:>15}"
print_("res-limits", template.format("RLIMIT", "SOFT", "HARD"))
for res_name, soft, hard in resources:
if soft == psutil.RLIM_INFINITY:
soft = "infinity"
if hard == psutil.RLIM_INFINITY:
hard = "infinity"
print_(
'',
template.format(
RLIMITS_MAP.get(res_name, res_name), soft, hard
),
)
if hasattr(proc, "environ") and pinfo['environ']:
template = "{:<25} {}"
print_("environ", template.format("NAME", "VALUE"))
for i, k in enumerate(sorted(pinfo['environ'])):
if not verbose and i >= NON_VERBOSE_ITERATIONS:
print_("", "[...]")
break
print_("", template.format(k, pinfo["environ"][k]))
if pinfo.get('memory_maps', None):
template = "{:<8} {}"
print_("mem-maps", template.format("RSS", "PATH"))
maps = sorted(pinfo['memory_maps'], key=lambda x: x.rss, reverse=True)
for i, region in enumerate(maps):
if not verbose and i >= NON_VERBOSE_ITERATIONS:
print_("", "[...]")
break
print_("", template.format(bytes2human(region.rss), region.path))
def main():
parser = argparse.ArgumentParser(
description="print information about a process"
)
parser.add_argument("pid", type=int, help="process pid", nargs='?')
parser.add_argument(
'--verbose', '-v', action='store_true', help="print more info"
)
args = parser.parse_args()
run(args.pid, args.verbose)
if __name__ == '__main__':
sys.exit(main())