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Подсчет потребляемой памяти процессами в Linux

04.06.2012 3 comments » Views: 10,372

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Оригинал скрипта тут: ps_mem.py. Под катом резервная копия..


#!/usr/bin/env python

# Try to determine how much RAM is currently being used per program.
# Note per _program_, not per process. So for example this script
# will report RAM used by all httpd process together. In detail it reports:
# sum(private RAM for program processes) + sum(Shared RAM for program processes)
# The shared RAM is problematic to calculate, and this script automatically
# selects the most accurate method available for your kernel.

# Author: P@draigBrady.com
# Source: http://www.pixelbeat.org/scripts/ps_mem.py

# V1.0      06 Jul 2005     Initial release
# V1.1      11 Aug 2006     root permission required for accuracy
# V1.2      08 Nov 2006     Add total to output
#                           Use KiB,MiB,... for units rather than K,M,...
# V1.3      22 Nov 2006     Ignore shared col from /proc/$pid/statm for
#                           2.6 kernels up to and including 2.6.9.
#                           There it represented the total file backed extent
# V1.4      23 Nov 2006     Remove total from output as it's meaningless
#                           (the shared values overlap with other programs).
#                           Display the shared column. This extra info is
#                           useful, especially as it overlaps between programs.
# V1.5      26 Mar 2007     Remove redundant recursion from human()
# V1.6      05 Jun 2007     Also report number of processes with a given name.
#                           Patch from riccardo.murri@gmail.com
# V1.7      20 Sep 2007     Use PSS from /proc/$pid/smaps if available, which
#                           fixes some over-estimation and allows totalling.
#                           Enumerate the PIDs directly rather than using ps,
#                           which fixes the possible race between reading
#                           RSS with ps, and shared memory with this program.
#                           Also we can show non truncated command names.
# V1.8      28 Sep 2007     More accurate matching for stats in /proc/$pid/smaps
#                           as otherwise could match libraries causing a crash.
#                           Patch from patrice.bouchand.fedora@gmail.com
# V1.9      20 Feb 2008     Fix invalid values reported when PSS is available.
#                           Reported by Andrey Borzenkov <arvidjaar@mail.ru>
# V2.6      13 Aug 2011
#   http://github.com/pixelb/scripts/commits/master/scripts/ps_mem.py

# Notes:
#
# All interpreted programs where the interpreter is started
# by the shell or with env, will be merged to the interpreter
# (as that's what's given to exec). For e.g. all python programs
# starting with "#!/usr/bin/env python" will be grouped under python.
# You can change this by using the full command line but that will
# have the undesirable affect of splitting up programs started with
# differing parameters (for e.g. mingetty tty[1-6]).
#
# For 2.6 kernels up to and including 2.6.13 and later 2.4 redhat kernels
# (rmap vm without smaps) it can not be accurately determined how many pages
# are shared between processes in general or within a program in our case:
# http://lkml.org/lkml/2005/7/6/250
# A warning is printed if overestimation is possible.
# In addition for 2.6 kernels up to 2.6.9 inclusive, the shared
# value in /proc/$pid/statm is the total file-backed extent of a process.
# We ignore that, introducing more overestimation, again printing a warning.
# Since kernel 2.6.23-rc8-mm1 PSS is available in smaps, which allows
# us to calculate a more accurate value for the total RAM used by programs.
#
# Programs that use CLONE_VM without CLONE_THREAD are discounted by assuming
# they're the only programs that have the same /proc/$PID/smaps file for
# each instance.  This will fail if there are multiple real instances of a
# program that then use CLONE_VM without CLONE_THREAD, or if a clone changes
# its memory map while we're checksumming each /proc/$PID/smaps.
#
# I don't take account of memory allocated for a program
# by other programs. For e.g. memory used in the X server for
# a program could be determined, but is not.
#
# FreeBSD is supported if linprocfs is mounted at /compat/linux/proc/
# FreeBSD 8.0 supports up to a level of Linux 2.6.16

import errno
import os
import sys

try:
    # md5 module is deprecated on python 2.6
    # so try the newer hashlib first
    import hashlib
    md5_new = hashlib.md5
except ImportError:
    import md5
    md5_new = md5.new

# The following exits cleanly on Ctrl-C or EPIPE
# while treating other exceptions as before.
def std_exceptions(etype, value, tb):
    sys.excepthook = sys.__excepthook__
    if issubclass(etype, KeyboardInterrupt):
        pass
    elif issubclass(etype, IOError) and value.errno == errno.EPIPE:
        pass
    else:
        sys.__excepthook__(etype, value, tb)
sys.excepthook = std_exceptions

if os.geteuid() != 0:
    sys.stderr.write("Sorry, root permission required.\n")
    if __name__ == '__main__':
        sys.stderr.close()
        sys.exit(1)

uname = os.uname()
if uname[0] == "FreeBSD":
    proc = "/compat/linux/proc/"
else:
    proc = "/proc/"

split_args = False
if len(sys.argv) == 2 and sys.argv[1] == "--split-args":
    split_args = True

PAGESIZE = os.sysconf("SC_PAGE_SIZE") / 1024 #KiB
our_pid = os.getpid()

#(major,minor,release)
def kernel_ver():
    kv = open(proc + "sys/kernel/osrelease", "rt").readline().split(".")[:3]
    last = len(kv)
    if last == 2:
        kv.append('0')
    last -= 1
    for char in "-_":
        kv[last] = kv[last].split(char)[0]
    try:
        int(kv[last])
    except:
        kv[last] = 0
    return (int(kv[0]), int(kv[1]), int(kv[2]))

try:
    kv = kernel_ver()
except (IOError, OSError):
    val = sys.exc_info()[1]
    if val.errno == errno.ENOENT:
        sys.stderr.write(
          "Couldn't access /proc\n"
          "Only GNU/Linux and FreeBSD (with linprocfs) are supported\n")
        sys.exit(2)
    else:
        raise

have_pss = 0

#return Private,Shared
#Note shared is always a subset of rss (trs is not always)
def getMemStats(pid):
    global have_pss
    mem_id = pid #unique
    Private_lines = []
    Shared_lines = []
    Pss_lines = []
    Rss = (int(open(proc + str(pid) + "/statm", "rt").readline().split()[1])
           * PAGESIZE)
    if os.path.exists(proc + str(pid) + "/smaps"): #stat
        digester = md5_new()
        for line in open(proc + str(pid) + "/smaps", "rb").readlines(): #open
            # Note we checksum smaps as maps is usually but
            # not always different for separate processes.
            digester.update(line)
            line = line.decode("ascii")
            if line.startswith("Shared"):
                Shared_lines.append(line)
            elif line.startswith("Private"):
                Private_lines.append(line)
            elif line.startswith("Pss"):
                have_pss = 1
                Pss_lines.append(line)
        mem_id = digester.hexdigest()
        Shared = sum([int(line.split()[1]) for line in Shared_lines])
        Private = sum([int(line.split()[1]) for line in Private_lines])
        #Note Shared + Private = Rss above
        #The Rss in smaps includes video card mem etc.
        if have_pss:
            pss_adjust = 0.5 # add 0.5KiB as this avg error due to trunctation
            Pss = sum([float(line.split()[1])+pss_adjust for line in Pss_lines])
            Shared = Pss - Private
    elif (2,6,1) <= kv <= (2,6,9):
        Shared = 0 #lots of overestimation, but what can we do?
        Private = Rss
    else:
        Shared = int(open(proc+str(pid)+"/statm", "rt").readline().split()[2])
        Shared *= PAGESIZE
        Private = Rss - Shared
    return (Private, Shared, mem_id)

def getCmdName(pid):
    cmdline = open(proc+"%d/cmdline" % pid, "rt").read().split("\0")
    if cmdline[-1] == '' and len(cmdline) > 1:
        cmdline = cmdline[:-1]
    path = os.path.realpath(proc+"%d/exe" % pid) #exception for kernel threads
    if split_args:
        return " ".join(cmdline)
    if path.endswith(" (deleted)"):
        path = path[:-10]
        if os.path.exists(path):
            path += " [updated]"
        else:
            #The path could be have prelink stuff so try cmdline
            #which might have the full path present. This helped for:
            #/usr/libexec/notification-area-applet.#prelink#.fX7LCT (deleted)
            if os.path.exists(cmdline[0]):
                path = cmdline[0] + " [updated]"
            else:
                path += " [deleted]"
    exe = os.path.basename(path)
    cmd = open(proc+"%d/status" % pid, "rt").readline()[6:-1]
    if exe.startswith(cmd):
        cmd = exe #show non truncated version
        #Note because we show the non truncated name
        #one can have separated programs as follows:
        #584.0 KiB +   1.0 MiB =   1.6 MiB    mozilla-thunder (exe -> bash)
        # 56.0 MiB +  22.2 MiB =  78.2 MiB    mozilla-thunderbird-bin
    return cmd

cmds = {}
shareds = {}
mem_ids = {}
count = {}
for pid in os.listdir(proc):
    if not pid.isdigit():
        continue
    pid = int(pid)
    if pid == our_pid:
        continue
    try:
        cmd = getCmdName(pid)
    except:
        #permission denied or
        #kernel threads don't have exe links or
        #process gone
        continue
    try:
        private, shared, mem_id = getMemStats(pid)
    except:
        continue #process gone
    if shareds.get(cmd):
        if have_pss: #add shared portion of PSS together
            shareds[cmd] += shared
        elif shareds[cmd] < shared: #just take largest shared val
            shareds[cmd] = shared
    else:
        shareds[cmd] = shared
    cmds[cmd] = cmds.setdefault(cmd, 0) + private
    if cmd in count:
        count[cmd] += 1
    else:
        count[cmd] = 1
    mem_ids.setdefault(cmd, {}).update({mem_id:None})

#Add shared mem for each program
total = 0
for cmd in cmds:
    cmd_count = count[cmd]
    if len(mem_ids[cmd]) == 1 and cmd_count > 1:
        # Assume this program is using CLONE_VM without CLONE_THREAD
        # so only account for one of the processes
        cmds[cmd] /= cmd_count
        if have_pss:
            shareds[cmd] /= cmd_count
    cmds[cmd] = cmds[cmd] + shareds[cmd]
    total += cmds[cmd] #valid if PSS available

if sys.version_info >= (2, 6):
    sort_list = sorted(cmds.items(), key=lambda x:x[1])
else:
    sort_list = cmds.items()
    sort_list.sort(lambda x, y:cmp(x[1], y[1]))
# list wrapping is redundant on <py3k, needed for >=pyk3 however
sort_list = list(filter(lambda x:x[1], sort_list)) #get rid of 0 sized processes

#The following matches "du -h" output
#see also human.py
def human(num, power="Ki"):
    powers = ["Ki", "Mi", "Gi", "Ti"]
    while num >= 1000: #4 digits
        num /= 1024.0
        power = powers[powers.index(power)+1]
    return "%.1f %s" % (num, power)

def cmd_with_count(cmd, count):
    if count > 1:
        return "%s (%u)" % (cmd, count)
    else:
        return cmd

if __name__ == '__main__':
    sys.stdout.write(" Private  +   Shared  =  RAM used\tProgram \n\n")
    for cmd in sort_list:
        sys.stdout.write("%8sB + %8sB = %8sB\t%s\n" %
                         (human(cmd[1]-shareds[cmd[0]]),
                          human(shareds[cmd[0]]), human(cmd[1]),
                          cmd_with_count(cmd[0], count[cmd[0]])))
    if have_pss:
        sys.stdout.write("%s\n%s%8sB\n%s\n" %
                         ("-" * 33, " " * 24, human(total), "=" * 33))
    sys.stdout.write("\n Private  +   Shared  =  RAM used\tProgram \n\n")
    # We must close explicitly, so that any EPIPE exception
    # is handled by our excepthook, rather than the default
    # one which is reenabled after this script finishes.
    sys.stdout.close()

#Warn of possible inaccuracies
#2 = accurate & can total
#1 = accurate only considering each process in isolation
#0 = some shared mem not reported
#-1= all shared mem not reported
def shared_val_accuracy():
    """http://wiki.apache.org/spamassassin/TopSharedMemoryBug"""
    if kv[:2] == (2,4):
        if open(proc+"meminfo", "rt").read().find("Inact_") == -1:
            return 1
        return 0
    elif kv[:2] == (2,6):
        pid = str(os.getpid())
        if os.path.exists(proc+pid+"/smaps"):
            if open(proc+pid+"/smaps", "rt").read().find("Pss:")!=-1:
                return 2
            else:
                return 1
        if (2,6,1) <= kv <= (2,6,9):
            return -1
        return 0
    elif kv[0] > 2:
        return 2
    else:
        return 1

if __name__ == '__main__':
    vm_accuracy = shared_val_accuracy()
    if vm_accuracy == -1:
        sys.stderr.write(
         "Warning: Shared memory is not reported by this system.\n"
        )
        sys.stderr.write(
         "Values reported will be too large, and totals are not reported\n"
        )
    elif vm_accuracy == 0:
        sys.stderr.write(
         "Warning: Shared memory is not reported accurately by this system.\n"
        )
        sys.stderr.write(
         "Values reported could be too large, and totals are not reported\n"
        )
    elif vm_accuracy == 1:
        sys.stderr.write(
         "Warning: Shared memory is slightly over-estimated by this system\n"
         "for each program, so totals are not reported.\n"
        )
    sys.stderr.close()

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#!/usr/bin/env python

# Try to determine how much RAM is currently being used per program.

# Note per _program_, not per process. So for example this script

# will report RAM used by all httpd process together. In detail it reports:

# sum(private RAM for program processes) + sum(Shared RAM for program processes)

# The shared RAM is problematic to calculate, and this script automatically

# selects the most accurate method available for your kernel.

# Author: P@draigBrady.com

# Source: http://www.pixelbeat.org/scripts/ps_mem.py

# V1.0 06 Jul 2005 Initial release

# V1.1 11 Aug 2006 root permission required for accuracy

# V1.2 08 Nov 2006 Add total to output

# Use KiB,MiB,... for units rather than K,M,...

# V1.3 22 Nov 2006 Ignore shared col from /proc/$pid/statm for

# 2.6 kernels up to and including 2.6.9.

# There it represented the total file backed extent

# V1.4 23 Nov 2006 Remove total from output as it's meaningless

# (the shared values overlap with other programs).

# Display the shared column. This extra info is

# useful, especially as it overlaps between programs.

# V1.5 26 Mar 2007 Remove redundant recursion from human()

# V1.6 05 Jun 2007 Also report number of processes with a given name.

# Patch from riccardo.murri@gmail.com

# V1.7 20 Sep 2007 Use PSS from /proc/$pid/smaps if available, which

# fixes some over-estimation and allows totalling.

# Enumerate the PIDs directly rather than using ps,

# which fixes the possible race between reading

# RSS with ps, and shared memory with this program.

# Also we can show non truncated command names.

# V1.8 28 Sep 2007 More accurate matching for stats in /proc/$pid/smaps

# as otherwise could match libraries causing a crash.

# Patch from patrice.bouchand.fedora@gmail.com

# V1.9 20 Feb 2008 Fix invalid values reported when PSS is available.

# Reported by Andrey Borzenkov <arvidjaar@mail.ru>

# V2.6 13 Aug 2011

# http://github.com/pixelb/scripts/commits/master/scripts/ps_mem.py

# Notes:

# All interpreted programs where the interpreter is started

# by the shell or with env, will be merged to the interpreter

# (as that's what's given to exec). For e.g. all python programs

# starting with "#!/usr/bin/env python" will be grouped under python.

# You can change this by using the full command line but that will

# have the undesirable affect of splitting up programs started with

# differing parameters (for e.g. mingetty tty[1-6]).

# For 2.6 kernels up to and including 2.6.13 and later 2.4 redhat kernels

# (rmap vm without smaps) it can not be accurately determined how many pages

# are shared between processes in general or within a program in our case:

# http://lkml.org/lkml/2005/7/6/250

# A warning is printed if overestimation is possible.

# In addition for 2.6 kernels up to 2.6.9 inclusive, the shared

# value in /proc/$pid/statm is the total file-backed extent of a process.

# We ignore that, introducing more overestimation, again printing a warning.

# Since kernel 2.6.23-rc8-mm1 PSS is available in smaps, which allows

# us to calculate a more accurate value for the total RAM used by programs.

# Programs that use CLONE_VM without CLONE_THREAD are discounted by assuming

# they're the only programs that have the same /proc/$PID/smaps file for

# each instance. This will fail if there are multiple real instances of a

# program that then use CLONE_VM without CLONE_THREAD, or if a clone changes

# its memory map while we're checksumming each /proc/$PID/smaps.

# I don't take account of memory allocated for a program

# by other programs. For e.g. memory used in the X server for

# a program could be determined, but is not.

# FreeBSD is supported if linprocfs is mounted at /compat/linux/proc/

# FreeBSD 8.0 supports up to a level of Linux 2.6.16

import errno

import os

import sys

try:

# md5 module is deprecated on python 2.6

# so try the newer hashlib first

import hashlib

md5_new = hashlib.md5

except ImportError:

import md5

md5_new = md5.new

# The following exits cleanly on Ctrl-C or EPIPE

# while treating other exceptions as before.

def std_exceptions(etype, value, tb):

sys.excepthook = sys.__excepthook__

if issubclass(etype, KeyboardInterrupt):

pass

elif issubclass(etype, IOError) and value.errno == errno.EPIPE:

pass

else:

sys.__excepthook__(etype, value, tb)

sys.excepthook = std_exceptions

if os.geteuid() != 0:

sys.stderr.write("Sorry, root permission required.\n")

if __name__ == '__main__':

sys.stderr.close()

sys.exit(1)

uname = os.uname()

if uname[0] == "FreeBSD":

proc = "/compat/linux/proc/"

else:

proc = "/proc/"

split_args = False

if len(sys.argv) == 2 and sys.argv[1] == "--split-args":

split_args = True

PAGESIZE = os.sysconf("SC_PAGE_SIZE") / 1024 #KiB

our_pid = os.getpid()

#(major,minor,release)

def kernel_ver():

kv = open(proc + "sys/kernel/osrelease", "rt").readline().split(".")[:3]

last = len(kv)

if last == 2:

kv.append('0')

last -= 1

for char in "-_":

kv[last] = kv[last].split(char)[0]

try:

int(kv[last])

except:

kv[last] = 0

return (int(kv[0]), int(kv[1]), int(kv[2]))

try:

kv = kernel_ver()

except (IOError, OSError):

val = sys.exc_info()[1]

if val.errno == errno.ENOENT:

sys.stderr.write(

"Couldn't access /proc\n"

"Only GNU/Linux and FreeBSD (with linprocfs) are supported\n")

sys.exit(2)

else:

raise

have_pss = 0

#return Private,Shared

#Note shared is always a subset of rss (trs is not always)

def getMemStats(pid):

global have_pss

mem_id = pid #unique

Private_lines = []

Shared_lines = []

Pss_lines = []

Rss = (int(open(proc + str(pid) + "/statm", "rt").readline().split()[1])

* PAGESIZE)

if os.path.exists(proc + str(pid) + "/smaps"): #stat

digester = md5_new()

for line in open(proc + str(pid) + "/smaps", "rb").readlines(): #open

# Note we checksum smaps as maps is usually but

# not always different for separate processes.

digester.update(line)

line = line.decode("ascii")

if line.startswith("Shared"):

Shared_lines.append(line)

elif line.startswith("Private"):

Private_lines.append(line)

elif line.startswith("Pss"):

have_pss = 1

Pss_lines.append(line)

mem_id = digester.hexdigest()

Shared = sum([int(line.split()[1]) for line in Shared_lines])

Private = sum([int(line.split()[1]) for line in Private_lines])

#Note Shared + Private = Rss above

#The Rss in smaps includes video card mem etc.

if have_pss:

pss_adjust = 0.5 # add 0.5KiB as this avg error due to trunctation

Pss = sum([float(line.split()[1])+pss_adjust for line in Pss_lines])

Shared = Pss - Private

elif (2,6,1) <= kv <= (2,6,9):

Shared = 0 #lots of overestimation, but what can we do?

Private = Rss

else:

Shared = int(open(proc+str(pid)+"/statm", "rt").readline().split()[2])

Shared *= PAGESIZE

Private = Rss - Shared

return (Private, Shared, mem_id)

def getCmdName(pid):

cmdline = open(proc+"%d/cmdline" % pid, "rt").read().split("\0")

if cmdline[-1] == '' and len(cmdline) > 1:

cmdline = cmdline[:-1]

path = os.path.realpath(proc+"%d/exe" % pid) #exception for kernel threads

if split_args:

return " ".join(cmdline)

if path.endswith(" (deleted)"):

path = path[:-10]

if os.path.exists(path):

path += " [updated]"

else:

#The path could be have prelink stuff so try cmdline

#which might have the full path present. This helped for:

#/usr/libexec/notification-area-applet.#prelink#.fX7LCT (deleted)

if os.path.exists(cmdline[0]):

path = cmdline[0] + " [updated]"

else:

path += " [deleted]"

exe = os.path.basename(path)

cmd = open(proc+"%d/status" % pid, "rt").readline()[6:-1]

if exe.startswith(cmd):

cmd = exe #show non truncated version

#Note because we show the non truncated name

#one can have separated programs as follows:

#584.0 KiB + 1.0 MiB = 1.6 MiB mozilla-thunder (exe -> bash)

# 56.0 MiB + 22.2 MiB = 78.2 MiB mozilla-thunderbird-bin

return cmd

cmds = {}

shareds = {}

mem_ids = {}

count = {}

for pid in os.listdir(proc):

if not pid.isdigit():

continue

pid = int(pid)

if pid == our_pid:

continue

try:

cmd = getCmdName(pid)

except:

#permission denied or

#kernel threads don't have exe links or

#process gone

continue

try:

private, shared, mem_id = getMemStats(pid)

except:

continue #process gone

if shareds.get(cmd):

if have_pss: #add shared portion of PSS together

shareds[cmd] += shared

elif shareds[cmd] < shared: #just take largest shared val

shareds[cmd] = shared

else:

shareds[cmd] = shared

cmds[cmd] = cmds.setdefault(cmd, 0) + private

if cmd in count:

count[cmd] += 1

else:

count[cmd] = 1

mem_ids.setdefault(cmd, {}).update({mem_id:None})

#Add shared mem for each program

total = 0

for cmd in cmds:

cmd_count = count[cmd]

if len(mem_ids[cmd]) == 1 and cmd_count > 1:

# Assume this program is using CLONE_VM without CLONE_THREAD

# so only account for one of the processes

cmds[cmd] /= cmd_count

if have_pss:

shareds[cmd] /= cmd_count

cmds[cmd] = cmds[cmd] + shareds[cmd]

total += cmds[cmd] #valid if PSS available

if sys.version_info >= (2, 6):

sort_list = sorted(cmds.items(), key=lambda x:x[1])

else:

sort_list = cmds.items()

sort_list.sort(lambda x, y:cmp(x[1], y[1]))

# list wrapping is redundant on <py3k, needed for >=pyk3 however

sort_list = list(filter(lambda x:x[1], sort_list)) #get rid of 0 sized processes

#The following matches "du -h" output

#see also human.py

def human(num, power="Ki"):

powers = ["Ki", "Mi", "Gi", "Ti"]

while num >= 1000: #4 digits

num /= 1024.0

power = powers[powers.index(power)+1]

return "%.1f %s" % (num, power)

def cmd_with_count(cmd, count):

if count > 1:

return "%s (%u)" % (cmd, count)

else:

return cmd

if __name__ == '__main__':

sys.stdout.write(" Private + Shared = RAM used\tProgram \n\n")

for cmd in sort_list:

sys.stdout.write("%8sB + %8sB = %8sB\t%s\n" %

(human(cmd[1]-shareds[cmd[0]]),

human(shareds[cmd[0]]), human(cmd[1]),

cmd_with_count(cmd[0], count[cmd[0]])))

if have_pss:

sys.stdout.write("%s\n%s%8sB\n%s\n" %

("-" * 33, " " * 24, human(total), "=" * 33))

sys.stdout.write("\n Private + Shared = RAM used\tProgram \n\n")

# We must close explicitly, so that any EPIPE exception

# is handled by our excepthook, rather than the default

# one which is reenabled after this script finishes.

sys.stdout.close()

#Warn of possible inaccuracies

#2 = accurate & can total

#1 = accurate only considering each process in isolation

#0 = some shared mem not reported

#-1= all shared mem not reported

def shared_val_accuracy():

"""http://wiki.apache.org/spamassassin/TopSharedMemoryBug"""

if kv[:2] == (2,4):

if open(proc+"meminfo", "rt").read().find("Inact_") == -1:

return 1

return 0

elif kv[:2] == (2,6):

pid = str(os.getpid())

if os.path.exists(proc+pid+"/smaps"):

if open(proc+pid+"/smaps", "rt").read().find("Pss:")!=-1:

return 2

else:

return 1

if (2,6,1) <= kv <= (2,6,9):

return -1

return 0

elif kv[0] > 2:

return 2

else:

return 1

if __name__ == '__main__':

vm_accuracy = shared_val_accuracy()

if vm_accuracy == -1:

sys.stderr.write(

"Warning: Shared memory is not reported by this system.\n"

)

sys.stderr.write(

"Values reported will be too large, and totals are not reported\n"

)

elif vm_accuracy == 0:

sys.stderr.write(

"Warning: Shared memory is not reported accurately by this system.\n"

)

sys.stderr.write(

"Values reported could be too large, and totals are not reported\n"

)

elif vm_accuracy == 1:

sys.stderr.write(

"Warning: Shared memory is slightly over-estimated by this system\n"

"for each program, so totals are not reported.\n"

)

sys.stderr.close()

Author: Vitaly Orlov | Rating: 4/5 | Tags: ram

3 comments.

Write a comment

Андрей П Reply
01.07.2016 в 10:23 pm
Здравствуйте. Как его использовать?
- Vitaliy Orlov Reply
  04.07.2016 в 8:55 pm
  Привет, использовать вот так:
  
  скачиваем:
  wget https://raw.githubusercontent.com/pixelb/ps_mem/master/ps_mem.py запускаем от рута:
  sudo python ps_mem.py результат будет примерно такой:
  Private + Shared = RAM used Program 104.0 KiB + 16.0 KiB = 120.0 KiB start_kdeinit 120.0 KiB + 94.0 KiB = 214.0 KiB startkde 220.0 KiB + 28.0 KiB = 248.0 KiB acpid 152.0 KiB + 97.0 KiB = 249.0 KiB mysqld_safe 256.0 KiB + 88.5 KiB = 344.5 KiB uuidd 320.0 KiB + 41.5 KiB = 361.5 KiB agetty 328.0 KiB + 92.5 KiB = 420.5 KiB cron 392.0 KiB + 66.5 KiB = 458.5 KiB irqbalance 400.0 KiB + 78.0 KiB = 478.0 KiB rtkit-daemon 416.0 KiB + 77.5 KiB = 493.5 KiB systemd-timesyncd ... 164.4 MiB + 4.4 MiB = 168.8 MiB dropbox 240.3 MiB + 8.9 MiB = 249.2 MiB mysqld (2) 252.6 MiB + 3.4 MiB = 256.0 MiB thunderbird 242.1 MiB + 14.2 MiB = 256.2 MiB plasmashell 514.1 MiB + 10.3 MiB = 524.4 MiB firefox --------------------------------- 2.1 GiB

Подсчет потребляемой памяти процессами в Linux

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