If your system hangs
# sudo apt-get install preload
# sudo apt-get autoclean
# sudo apt-get autoremove
if problem persists we can also find the processes which are having higher cpu utilization
# top (in terminal)
then
# kill -9 PID
or we can also limit those processes using cpulimit
#sudo apt-get install cpulimit
#cpulimit -e name_of_process -l limit
eg. cpulimit -e Firefox -l 55
or
# cpulimit -p PID -l limit
eg. #cpulimit -p 2011 -l 55
we can find the PID by ‘top’ command.
if nothing is happening i.e complete freezing in ubuntu
while holding ‘alt+sys’ key type ‘REISUB’
🙂
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