Alert if RAM usage reaches threshold value

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Release Time

08/11/2017

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Update Time

07/15/2025

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Values Threshold Reaches RAM Usage

Please refer this script to monitor the RAM Usage

It will send you an alert if the RAM usage exceeds the defined Threshold value.

Along with the details of the Top 5 RAM consuming processes.

INPUT:

1.Threshold_Value - Value of the RAM usage level in percentage
2. oper - Comparision operator like ">=" ,"<=" ,">" ,"<"

Example:

Threshold_Value = 70
oper = ">="

if the RAM Usage level reaches the Theshold limit, the alert will send to you

Procedure's Instructions

Threshold_Value = 70        #Value in percentage 
oper            = ">="      #Give the operator to compare

import os
import ctypes
import re
import operator
import sys

Ram_avail = []
Drive = os.environ['SYSTEMDRIVE']
GetFreeMemory = 'systeminfo | findstr /'+ Drive +'"Total Physical Memory" /'+Drive+'"Available Physical Memory"'

class disable_file_system_redirection:
    _disable = ctypes.windll.kernel32.Wow64DisableWow64FsRedirection
    _revert = ctypes.windll.kernel32.Wow64RevertWow64FsRedirection
    def __enter__(self):
        self.old_value = ctypes.c_long()
        self.success = self._disable(ctypes.byref(self.old_value))
    def __exit__(self, type, value, traceback):
        if self.success:
            self._revert(self.old_value)

def alert(arg): 
   sys.stderr.write("%d%d%d" % (arg, arg, arg))

operator_dict ={
   '>': operator.gt,
   '<': operator.lt,
   '>=': operator.ge,
   '<=': operator.le}

with disable_file_system_redirection():
    Run_GetFreeMemory = os.popen(GetFreeMemory).read()
    process=os.popen('tasklist /v /FI "MEMUSAGE ge 10000" | sort /+67 /R').readlines()

for i in [i.strip() for i in Run_GetFreeMemory.split('\n')  if i.strip()]:
    value = re.sub("\D", "", i)
    Ram_avail.append(value)

value1 = int(Ram_avail[0])
value2 = int(Ram_avail[1])
value3  = value1 - value2
value4 = float(value3)/float(value1)
value5 = value4*100
Ram_Usage = int(value5)
Ram_Mon= (operator_dict[oper](Ram_Usage,Threshold_Value))

if Ram_Mon is True:
    alert(1)
    print "The RAM usage reached its threshold limit \n"
    print "The given threshold is ",Threshold_Value,"Percent"
    print "The Ram usage is ", Ram_Usage,"Percent"
    print "\n"
    print 'Top RAM memory consuming processes \n'
    try:
        for i in range(1,7,1):
            print (process[i])
    except:
        pass
else:
    alert(0)
    print "The RAM usagae falls within the threshold \n "
    print "The given threshold is ",Threshold_Value,"Percent"
    print "\n"
    print "The Ram usage is ", Ram_Usage,"Percent"
    print "\n"

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