CPU Priority

Nice is used to set CPU priority.

Niceness runs from

  • -20, the highest priority, lowest niceness, to
  • 19, the lowest priority, highest niceness and
  • Zero is the default

Yes, this is a bit counter-intuitive.

To reduce to lowest priority for user batadmin

renice -n 19 -u batadmin


45100: old priority 0, new priority 10

Note: New processes will get the default priority.

To increase priority mid-way to user wasadmin

renice -n -10 -u wasadmin

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