SLABTOP linux command manual

SLABTOP(1)                   Linux User's Manual                   SLABTOP(1)

       slabtop - display kernel slab cache information in real time

       slabtop [ options ]

       slabtop(1)  displays  detailed  kernel  slab cache information in real
       time.  It displays a listing of the top caches sorted by  one  of  the
       listed  sort  criterias.   It also displays a statistics header filled
       with slab layer information.

       Normal invocation of slabtop(1) does not  require  any  options.   The
       behavior,  however, can be fine-tuned by specifying one or more of the
       following flags:

       --delay=n, -d n
              Refresh the display every n seconds.   By  default,  slabtop(1)
              refreshes  the  display  every three seconds.  To exit the pro-
              gram, hit q.

       --sort=S, -s S
              Sort by S, where S is one of the sort criteria.

       --once, -o
              Display the output once and then exit.

       --version, -V
              Display version information and exit.

       --help Display usage information and exit.

       The following are valid sort criteria used to sort the individual slab
       caches  and  thereby  determine what are the "top" slab caches to dis-
       play.  The default sort criteria is to sort by the number  of  objects

       The  sort  criteria  can  also  be changed while slabtop is running by
       pressing the associated character.

       a:     sort by number of active objects

       b:     sort by objects per slab

       c:     sort by cache size

       l:     sort by number of slabs

       v      sort by number of active slabs

       n:     sort by name

       o:     sort by number of objects

       p:     sort by pages per slab

       s:     sort by object size

       u:     sort by cache utilization

       slabtop(1) accepts keyboard commands from the user  during  use.   The
       following  are  supported.   In  the  case  of letters, both cases are

       Each of the valid sort characters are also  accepted,  to  change  the
       sort routine. See the section SORT CRITERIA.

              Refresh the screen.

       Q      Quit the program.

       /proc/slabinfo -- slab information

       free(1), ps(1), top(1), vmstat(8)

       Currently,  slabtop(1) requires a 2.4 or later kernel (specifically, a
       version 1.1 or later /proc/slabinfo).  Kernel 2.2 should be  supported
       in the future.

       Written by Chris Rivera and Robert Love.

       slabtop(1) was inspired by Martin Bligh's perl script, vmtop.

       The  procps  package  is  maintained by Robert Love and was created by
       Michael Johnson.

       Send bug reports to .

Linux                            13 Sep 2003                       SLABTOP(1)