# 2.2. Process menu

Renice

  Allows you to modify the priority of the marked process (or all marked processes). Under Linux a process has a priority (nice value) ranging from -20 (best) to +20 (worst), thus increasing the nice value gives a process less CPU time. You are not allowed to lower the nice value (improve its priority) unless are the super-user. This means that, as an ordinary user, you cannot lower the nice value of a process even if you raised it before.

  Of course you are only allowed to alter the priority of your own processes. The super-user is allowed to modify the priority for any process, and he may lower the priority.

Change scheduling

  This option is only available to root. The Change Scheduling... dialog allows the super-user to change the scheduling policy of the selected processes (using the Posix.1b real-time extensions present in the Linux 2.0.x kernels). Normal processes are set to SCHED_OTHER and have static priority 0; (soft) real-time processes have the policy SCHED_FIFO or SCHED_RR and a static priority in the range of 1 to 99.

Socket info

  Displays a list of TCP and UDP sockets used by the selected processes.