man > procinfo(8)

PROCINFO-NG(8)                           Linux System Manual                          PROCINFO-NG(8)

NAME
       procinfo - display system statistics gathered from /proc


SYNOPSIS
       procinfo [ -fdDSbrhv ] [ -nN ]


DESCRIPTION
       procinfo  gathers some system data from the /proc directory and prints it nicely formatted on
       the standard output device.

       The meanings of the fields are as follows:


       Memory:
              See the man page for free(1)


       Bootup:
              The time the system was booted.


       Load average:
              The average number of jobs running, followed by the number of runnable  processes  and
              the total number of processes, followed by the PID of the last process run. The pid of
              the last running process will probably always be procinfo's PID.


       user:  The amount of time spent running jobs in user space.


       nice:  The amount of time spent running niced jobs in user space.


       system:
              The  amount of time spent running in kernel space.  Note: the time spent servicing in‐
              terrupts is not counted by the kernel (and nothing that procinfo can do about it).


       idle:  The amount of time spent doing nothing.


       uptime:
              The time that the system has been up. The above four should more or  less  add  up  to
              this one.


       page in:
              The number of disk blocks paged into core from disk. 1 block is equal to 1 kiB.


       page out:
              The  number  of  disk  blocks  paged  out of core to disk. This includes regular disk-
              writes.


       swap in:
              The number of memory pages paged in from swap.


       swap out:
              The number of memory pages paged out to swap.


       context:
              The number of context switches, either since bootup or per interval.


       Disk stats(hda, hdb, sda, sdb):
              The number of reads and writes made to disks,  whether  CD-ROM,  hard-drive,  or  USB.
              Shows  all  disks  if  they  either  are  an  hdX  or  sdX, or if they have a non-zero
              read/write count.


       Interrupts:
              Number of interrupts serviced since boot, or per interval, listed per IRQ.


OPTIONS
       -nN    Pause N second between updates. This option implies  -f.  It  may  contain  a  decimal
              point.  The default is 5 seconds. When run by root with a pause of 0 seconds, the pro‐
              gram will run at the highest possible priority level.

       -d     For  memory,  CPU  times, paging, swapping, disk, context and interrupt stats, display
              values per second rather than totals. This option implies -f.

       -D     Same as -d, except that memory stats are displayed as totals.

       -S     When running with -d or -D, always show values per second, even when running with -n N
              with N greater than one second.

       -b     Display numbers of bytes rather than number of I/O requests.

       -r     This option adds an extra line to the memory info showing 'real' free memory, just  as
              free(1) does. The numbers produced assume that Buffers and Cache are disposable.

       -H     Displays  memory  stats in 'Human' (base 1024) numbers (KiB, MiB, GiB), instead of im‐
              plied KBytes.

       -h     Print a brief help message.

       -v     Print version info.

INTERACTIVE COMMANDS
       When running procinfo fullscreen, you can change its behaviour by pressing d, D, S, r and  b,
       which  toggle the flags that correspond to their same-named commandline-options.  In addition
       you can press q which quits the program.

FILES
       /proc  The proc file system.

BUGS
       All of these statistics are taken verbatim from the kernel, without any  scaling.   Any  case
       where  the  kernel specifies that a particular field means something different from how it is
       documented in this man-page, the kernel always wins.

       Some features of the original procinfo were elided, as they were considered non-useful, espe‐
       cially as many of them don't change anymore, and have better utilities for listing/displaying
       them.

SEE ALSO
       free(1), uptime(1), w(1), init(8), proc(5).

AUTHOR
       Adam Schrotenboer <adam AT tabris.net>

v2.0                                         2007-05-05                               PROCINFO-NG(8)