- PRI: NI + 20 for normal processes. Internal value used by the kernel scheduler
- NI: Nice value - how “nice” a process is to other processes. Lower value is more greedy with CPU. Set by the user
- VIRT: Virtual memory - resident + swap + mapped files (executables, libraries, etc.)
- RES: Resident memory - actual memory size used from RAM. Non-swapped physical memory
- SHR: Shared memory - memory size shared with other processes. Usually through shared libraries
- S: Status ([R]unning, [S]leep, [D]isk, [Z]ombie, [T]opped)
- TIME+: Cumulative time a process has used the CPU (Not to be confused with uptime)
- Tasks: thr (threads), kthr (kernel threads)