MikroTik

# Name : Average CPU Load
# Set up the scheduler to run this at a 1 second intervals (Sample Rate)
# Set info logs to echo to Terminal in System Logging

:local cpuload 0
:global cpuarray
:local arraylen 0
:local arraypos 0
:local arraytot 0
:global avgcpuload 0
:global highavgcpuload

# arraysize is the number of cpu-Load samples to keep
# Experiment with this value to incease or decrease the number of samples
# The greater the value the longer the time that the cpu-load average is calculated for.
:local arraysize 20

# Get cpu-load samples, limit cpuarray to array size
:set cpuload [/system resource get cpu-load]
:set cpuarray ( [:toarray $cpuload] + $cpuarray )
:set cpuarray [:pick $cpuarray 0 $arraysize]

# add up all values in array
:set arraypos 0
:set arraylen [:len $cpuarray]
:while ($arraypos < $arraylen) do={
:set arraytot ($arraytot + [:pick $cpuarray $arraypos] );
:set arraypos ($arraypos +1)}

# divide sum of array values by the number of values in cpuarray
:set avgcpuload ($arraytot / [:len $cpuarray])
:if ([:len $highavgcpuload] = 0) do={:set highavgcpuload $avgcpuload}
:if ([$highavgcpuload] < [$avgcpuload]) do={:set highavgcpuload $avgcpuload}

# Display results in Terminal window
:log info ("CPU Load Captures:")
:log info $cpuarray
:log info ("Array Total: $arraytot")
:log info ("Array size: $arraysize")
:log info ("CPU Load - Avg: $avgcpuload High: $highavgcpuload")

:if ($avgcpuload >= 100)  do={ /system reboot; }

# Name : Average CPU Load
# Set up the scheduler to run this at a 1 second intervals (Sample Rate)
# Set info logs to echo to Terminal in System Logging
#
# maxsamples is the number of cpu-Load samples to keep
# Experiment with this value to incease or decrease the number of samples
# The greater the value the longer the time that the cpu-load average is calculated for.
:local maxsamples 20

# Get cpu-load samples, limit cpuarray to array size
:global cpuarray
:set cpuarray ([/system resource get cpu-load] , [:pick $cpuarray 0 ($maxsamples - 1)])

# add up all values in array
:local arraytot 0
:foreach o in=$cpuarray do={:set arraytot ($arraytot + $o)};

# divide sum of array values by the number of values in cpuarray
:local arraysize [:len $cpuarray]
:local avgcpuload ($arraytot / $arraysize)

# Display results in Terminal window
:log info ("CPU Load Captures:")
:log info $cpuarray
:log info ("Array Total: $arraytot")
:log info ("Array size: $arraysize of $maxsamples")
:global highavgcpuload
:if ([:len $highavgcpuload] = 0 || $highavgcpuload < $avgcpuload) do={:set highavgcpuload $avgcpuload}
:log info ("CPU Load - Avg: $avgcpuload High: $highavgcpuload")

#reboot if all samples show highload
:if ($arraysize = $maxsamples && $avgcpuload >= 100)  do={ /system reboot; }

# Set info logs to echo to Terminal in System Logging

/system scheduler
add comment="" disabled=no interval=15m name=RebootOnHighCPU on-event="/system script run RebootOnHighCPU" policy=ftp,reboot,read,write,policy,test,winbox,password,sniff,sensitive start-date=jan/01/1970 start-time=startup

/system script
add name=RebootOnHighCPU

:global datum [/system clock get date];
:global time [/system clock get time];
:local percentfree ((100 * [/system resource get free-memory]) / [/system resource get total-memory])
/system resource
:if ($percentfree < 5) do={:local maxsamples 20
:global cpuarray
:set cpuarray ([/system resource get cpu-load] , [:pick $cpuarray 0 ($maxsamples - 1)])
:local arraytot 0
:foreach o in=$cpuarray do={:set arraytot ($arraytot + $o)};
:local arraysize [:len $cpuarray]
:local avgcpuload ($arraytot / $arraysize)
:log info ("CPU Load Captures:")
:log info $cpuarray
:log info ("Array Total: $arraytot")
:log info ("Array size: $arraysize of $maxsamples")
:global highavgcpuload
:if ([:len $highavgcpuload] = 0 || $highavgcpuload < $avgcpuload) do={:set highavgcpuload $avgcpuload}
:log info ("CPU Load - Avg: $avgcpuload High: $highavgcpuload")
:if ($arraysize = $maxsamples && $avgcpuload >= 100)  
}
  /tool e-mail send server=000.000.000.000 to="xxxxxxx@hotmail.com" subject=[/system identity get name] from="xxxxxxx@nospam.com" body=(" on $datum at $time the memory on this repeater got to ", [/system resource get free-memory])
  /system reboot;
};

:global datum [/system clock get date];
:global time [/system clock get time];
{:local maxsamples 20
:global cpuarray
:set cpuarray ([/system resource get cpu-load] , [:pick $cpuarray 0 ($maxsamples - 1)])
:local arraytot 0
:foreach o in=$cpuarray do={:set arraytot ($arraytot + $o)};
:local arraysize [:len $cpuarray]
:local avgcpuload ($arraytot / $arraysize)
:log info ("CPU Load Captures:")
:log info $cpuarray
:log info ("Array Total: $arraytot")
:log info ("Array size: $arraysize of $maxsamples")
:global highavgcpuload
:if ([:len $highavgcpuload] = 0 || $highavgcpuload < $avgcpuload) do={:set highavgcpuload $avgcpuload}
:log info ("CPU Load - Avg: $avgcpuload High: $highavgcpuload")
:if ($arraysize = $maxsamples && $avgcpuload >= 100) 
}
 /tool e-mail send server=000.000.000.000 to="xxxxxxx@hotmail.com" subject=[/system identity get name] from="xxxxxxx@nospam.com" body=(" on $datum at $time the memory on this repeater got to ", [/system resource get free-memory])
  /system reboot;
};

:global datum [/system clock get date];
:global time [/system clock get time];
:local maxsamples 5
:global cpuarray
:set cpuarray ([/system resource get cpu-load] , [:pick $cpuarray 0 ($maxsamples - 1)])
:local arraytot 0
:foreach o in=$cpuarray do={:set arraytot ($arraytot + $o)};
:local arraysize [:len $cpuarray]
:local avgcpuload ($arraytot / $arraysize)
:log info ("CPU Load Captures:")
:log info $cpuarray
:log info ("Array Total: $arraytot")
:log info ("Array size: $arraysize of $maxsamples")
:global highavgcpuload
:if ([:len $highavgcpuload] = 0 || $highavgcpuload < $avgcpuload) do={:set highavgcpuload $avgcpuload}
:log info ("CPU Load - Avg: $avgcpuload High: $highavgcpuload")
:if ($arraysize = $maxsamples && $avgcpuload >= 100) do={ 
/tool e-mail send server=000.000.000.000 to="xxxxxxx@hotmail.com" subject=[/system identity get name] from="xxxxxxx@nospam.com" body=[/system identity get name] ," At $time the CPU Load on this router was running at 100%")
  /system reboot;
};

:foreach o in=$cpuarray do={:set arraytot ($arraytot + $o)};