Change the priority of a running process with nice and renice. Negative numbers have a higher priority, the lowest is -20 and "nice" have a positive value.
# renice -5 586 ------ stronger priority
Start the process with a defined priority with nice. Positive is "nice" or weak, negative is strong scheduling priority.
# nice -n -5 top # Stronger priority (/usr/bin/nice)
# nice -n 5 top # Weaker priority (/usr/bin/nice)
# nice +5 top
While nice changes the CPU scheduler, an other useful command ionice will schedule the disk IO. This is very useful for intensive IO application.
# ionice c3 -p123 # set idle class for pid 123
# ionice -c2 -n0 firefox # Run firefox with best effort and
high priority
# ionice -c3 -p$$ # Set the actual shell to idle priority
Use nohup to start a process which has to keep running when the shell is closed
# nohup sh run.sh -b 0.0.0.0 &
# nohup ping -i 60 > ping.log &
# renice -5 586 ------ stronger priority
Start the process with a defined priority with nice. Positive is "nice" or weak, negative is strong scheduling priority.
# nice -n -5 top # Stronger priority (/usr/bin/nice)
# nice -n 5 top # Weaker priority (/usr/bin/nice)
# nice +5 top
While nice changes the CPU scheduler, an other useful command ionice will schedule the disk IO. This is very useful for intensive IO application.
# ionice c3 -p123 # set idle class for pid 123
# ionice -c2 -n0 firefox # Run firefox with best effort and
high priority
# ionice -c3 -p$$ # Set the actual shell to idle priority
nohup
Use nohup to start a process which has to keep running when the shell is closed
# nohup sh run.sh -b 0.0.0.0 &
# nohup ping -i 60 > ping.log &
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