On Fri, 2007-10-12 at 11:09 -0700, Curtis Doty wrote: > Yes way cool, James. That script hightlights a bunch of info I've been > curious about and too lazy to RTF proc(5). Here's a little patch to make > it disclose which processes are sitting on the deleted libs. Well it was something I threw together a few months ago to give myself some rough numbers, but here's an update which is a bit more userfriendly (also does the detailed info by pids, if that is the first argument). -- James Antill <james antill redhat com> Red Hat
#! /usr/bin/python -t
import os
import sys
# Decent (UK/US English only) number formatting.
import locale
locale.setlocale(locale.LC_ALL, '')
def loc_num(x):
""" Return a string of a number in the readable "locale" format. """
return locale.format("%d", int(x), True)
def kmgtp_num(x):
""" Return a string of a number in the MEM size format, Ie. "30 MB". """
ends = [" ", "K", "M", "G", "T", "P"]
while len(ends) and x > 1024:
ends.pop(0)
x /= 1024
return "%u %s" % (x, ends[0])
def cmdline_from_pid(pid):
""" Fetch command line from a process id. """
try:
cmdline= open("/proc/%i/cmdline" %pid).readlines()[0]
return " ".join(cmdline.split("\x00")).rstrip()
except:
return ""
pids = {}
for d in os.listdir("/proc/"):
try:
pid = int(d)
pids[pid] = lambda x: x
pids[pid].files = set()
pids[pid].vsz = 0
pids[pid].s_size = 0
pids[pid].s_rss = 0
pids[pid].s_shared_clean = 0
pids[pid].s_shared_dirty = 0
pids[pid].s_private_clean = 0
pids[pid].s_private_dirty = 0
pids[pid].referenced = 0
pids[pid].name = cmdline_from_pid(pid)
except:
pass
def map_sz(x):
""" Work out vsz from mapping range. """
(beg, end) = x.split('-')
return (int(end, 16) - int(beg, 16))
files = {}
for pid in pids.keys():
try:
try:
lines = open("/proc/%d/smaps" % pid).readlines()
smaps = True
except:
lines = open("/proc/%d/maps" % pid).readlines()
smaps = False
off = 0
while off < len(lines):
line = lines[off]
off += 1
try:
int(line[0])
except:
continue
data = line.split(None, 5)
try:
ino = int(data[4])
dev = int(data[3].split(":", 2)[0], 16)
except:
print "DBG: Bad line:", lines[off - 1]
print "DBG: data=", data
continue
if dev == 0:
continue
if ino == 0:
continue
if '(deleted)' not in data[5]:
continue
key = "%s:%d" % (data[3], ino)
if key not in files:
files[key] = lambda x: x # Hack
files[key].s_size = 0
files[key].s_rss = 0
files[key].s_shared_clean = 0
files[key].s_shared_dirty = 0
files[key].s_private_clean = 0
files[key].s_private_dirty = 0
files[key].referenced = 0
files[key].vsz = 0
files[key].pids = set()
files[key].name = data[5]
num = map_sz(data[0])
pids[pid].vsz += num
pids[pid].files.update([key])
files[key].vsz += num
files[key].pids.update([pid])
try:
if smaps:
off += 1
num = int(lines[off].split(None, 3)[1])
pids[pid].s_size += num
files[key].s_size += num
off += 1
num = int(lines[off].split(None, 3)[1])
pids[pid].s_rss += num
files[key].s_rss += num
off += 1
num = int(lines[off].split(None, 3)[1])
pids[pid].s_shared_clean += num
files[key].s_shared_clean += num
off += 1
num = int(lines[off].split(None, 3)[1])
pids[pid].s_shared_dirty += num
files[key].s_shared_dirty += num
off += 1
num = int(lines[off].split(None, 3)[1])
pids[pid].s_private_clean += num
files[key].s_private_clean += num
off += 1
num = int(lines[off].split(None, 3)[1])
pids[pid].s_private_dirty += num
files[key].s_private_dirty += num
off += 1
try:
num = int(lines[off].split(None, 3)[1])
pids[pid].referenced += num
files[key].referenced += num
off += 1
except:
pass
except:
print "DBG: Bad data:";, lines[off - 1]
except:
pass
vsz = 0
s_size = 0
s_rss = 0
s_shared_clean = 0
s_shared_dirty = 0
s_private_clean = 0
s_private_dirty = 0
referenced = 0
out_type = "files"
if len(sys.argv) > 1 and sys.argv[1] == "pids":
out_type = "pids"
if len(sys.argv) > 1 and sys.argv[1] == "summary":
out_type = "summary"
for x in files.values():
vsz += x.vsz
s_size += x.s_size
s_rss += x.s_rss
s_shared_clean += x.s_shared_clean
s_shared_dirty += x.s_shared_dirty
s_private_clean += x.s_private_clean
s_private_dirty += x.s_private_dirty
referenced += x.referenced
if out_type == "files":
print "%5sB:" % kmgtp_num(x.vsz), x.name,
print "\ts_size = %5sB" % kmgtp_num(x.s_size * 1024)
print "\ts_rss = %5sB" % kmgtp_num(x.s_rss * 1024)
print "\ts_shared_clean = %5sB" % kmgtp_num(x.s_shared_clean * 1024)
print "\ts_shared_dirty = %5sB" % kmgtp_num(x.s_shared_dirty * 1024)
print "\ts_private_clean = %5sB" % kmgtp_num(x.s_private_clean * 1024)
print "\ts_private_dirty = %5sB" % kmgtp_num(x.s_private_dirty * 1024)
print "\treferenced = %5sB" % kmgtp_num(x.referenced * 1024)
for pid in frozenset(x.pids):
print "\t\t", pid, pids[pid].name
for pid in pids.keys():
if not pids[pid].vsz:
del pids[pid]
if out_type == "pids":
for pid in pids.keys():
print "%5sB:" % kmgtp_num(pids[pid].vsz), pid, pids[pid].name
print "\ts_size = %5sB" % kmgtp_num(pids[pid].s_size * 1024)
print "\ts_rss = %5sB" % kmgtp_num(pids[pid].s_rss * 1024)
print "\ts_shared_clean = %5sB" % kmgtp_num(pids[pid].s_shared_clean * 1024)
print "\ts_shared_dirty = %5sB" % kmgtp_num(pids[pid].s_shared_dirty * 1024)
print "\ts_private_clean = %5sB" % kmgtp_num(pids[pid].s_private_clean * 1024)
print "\ts_private_dirty = %5sB" % kmgtp_num(pids[pid].s_private_dirty * 1024)
print "\treferenced = %5sB" % kmgtp_num(pids[pid].referenced * 1024)
for key in pids[pid].files:
print "\t\t", files[key].name,
print "\
=============================================================================="
print "files = %8s" % loc_num(len(files))
print "pids = %8s" % loc_num(len(pids.keys()))
print "vsz = %5sB" % kmgtp_num(vsz)
print "\
------------------------------------------------------------------------------"
print "s_size = %5sB" % kmgtp_num(s_size * 1024)
print "s_rss = %5sB" % kmgtp_num(s_rss * 1024)
print "s_shared_clean = %5sB" % kmgtp_num(s_shared_clean * 1024)
print "s_shared_dirty = %5sB" % kmgtp_num(s_shared_dirty * 1024)
print "s_private_clean = %5sB" % kmgtp_num(s_private_clean * 1024)
print "s_private_dirty = %5sB" % kmgtp_num(s_private_dirty * 1024)
print "referenced = %5sB" % kmgtp_num(referenced * 1024)
print "\
=============================================================================="
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