Use “procstat” to get process info

On FreeBSD, you can use procstat command to get detailed info of process. E.g.: 

  1. # procstat 521
  2. PID  PPID  PGID   SID  TSID THR LOGIN    WCHAN     EMUL          COMM
  3. 521     1   521   521     0   1 root     select    FreeBSD ELF64 syslogd

The above outputs describe the info of process whose PID is 521: its PID, parent PID, command name, etc.

If you want to display all processes’ info, use -a option: 

  1. # procstat -a
  2. PID  PPID  PGID   SID  TSID THR LOGIN    WCHAN     EMUL          COMM
  3. 0     0     0     0     0  10 -        -         -             kernel
  4. 1     0     1     1     0   1 root     wait      FreeBSD ELF64 init
  5. 2     0     0     0     0   2 -        -         -             cam
  6. 3     0     0     0     0   1 -        idle      -             mpt_recovery0
  7. 4     0     0     0     0   1 -        waiting_  -             sctp_iterator
  8. 5     0     0     0     0   2 -        umarcl    -             pagedaemon
  9. 6     0     0     0     0   1 -        psleep    -             vmdaemon
  10. 7     0     0     0     0   1 -        pgzero    -             pagezero

There are many options you can use for procstat, i.e., if you are curious about thread info, use -t option: 

  1. # procstat -t 521
  2. PID    TID COMM             TDNAME           CPU  PRI STATE   WCHAN
  3. 521 100065 syslogd          -                  0  120 sleep   select

For details of every option, please refer the manual.