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kstat(8)

System Administration Commands                                        kstat(8)



NAME
       kstat - obsolete display kernel statistics

SYNOPSIS
       kstat [-lpq] [-T u | d ] [-c class] [-m module]
            [-i instance] [-n name] [-s statistic]
            [interval [count]]


       kstat [-lpq] [-T u | d ] [-c class]
            [module:instance:name:statistic]...
            [interval [count]]

DESCRIPTION
       The  kstat utility examines the available kernel statistics, or kstats,
       on the system and reports those statistics  which  match  the  criteria
       specified  on the command line. Each matching statistic is printed with
       its module, instance, and name fields, as well as its actual value.


       Kernel statistics may be published by various kernel  subsystems,  such
       as  drivers  or  loadable  modules;  each kstat has a module field that
       denotes its publisher. Since each module might have countable  entities
       (such as multiple disks associated with the sd(4D) driver) for which it
       wishes to report statistics, the kstat also has an  instance  field  to
       index  the  statistics  for  each  entity; kstat instances are numbered
       starting from zero. Finally, the kstat is given a  name  unique  within
       its module.


       Each  kstat  may be a special kstat type, an array of name-value pairs,
       or raw data. In the name-value case, each reported  value  is  given  a
       label, which we refer to as the statistic. Known raw and special kstats
       are given statistic labels for each of their values by kstat; thus, all
       published values can be referenced as module:instance:name:statistic.


       When  invoked  without any module operands or options, kstat will match
       all defined statistics on the system. Example invocations are  provided
       below. All times are displayed as fractional seconds since system boot.

OPTIONS
       The  tests  specified by the following options are logically ANDed, and
       all matching kstats will be selected. A regular  expression  containing
       shell  metacharacters  must be protected from the shell by enclosing it
       with the appropriate quotes.


       The argument for the -c, -i, -m, -n, and -s options may be specified as
       a  shell  glob  pattern,  or  a Perl regular expression enclosed in '/'
       characters.

       -c class        Displays only kstats that match  the  specified  class.
                       class  is  a kernel-defined string which classifies the
                       "type" of the kstat.


       -i instance     Displays only kstats that match the specified instance.


       -l              Lists matching kstat names without displaying values.


       -m module       Displays only kstats that match the specified module.


       -n name         Displays only kstats that match the specified name.


       -p              Displays output in parseable format. All example output
                       in  this  document  is  given  in  this format. If this
                       option is not specified, kstat  produces  output  in  a
                       human-readable, table format.


       -q              Displays  no output, but return appropriate exit status
                       for matches against given criteria.


       -s statistic    Displays only kstats that match the  specified  statis‐
                       tic.


       -T d | u        Displays  a  time  stamp  before each statistics block,
                       either in date(1) format (d) or as an alphanumeric rep‐
                       resentation of the value returned by time(2) (u).


OPERANDS
       The following operands are supported:

       module:instance:name:statistic

           Alternate  method of specifying module, instance, name, and statis‐
           tic as described above. Each of  the  module,  instance,  name,  or
           statistic  specifiers may be a shell glob pattern or a Perl regular
           expression enclosed by '/' characters. It is possible to  use  both
           specifier  types within a single operand. Leaving a specifier empty
           is equivalent to using the '*' glob pattern for that specifier.


       interval

           The number of seconds between reports.


       count

           The number of reports to be printed.


EXAMPLES
       In the following examples, all the command lines in a block produce the
       same  output, as shown immediately below. The exact statistics and val‐
       ues will of course vary from machine to machine.

       Example 1 Using the kstat Command


         example$ kstat -p -m unix -i 0 -n system_misc -s 'avenrun*'
         example$ kstat -p -s 'avenrun*'
         example$ kstat -p 'unix:0:system_misc:avenrun*'
         example$ kstat -p ':::avenrun*'
         example$ kstat -p ':::/^avenrun_\d+min$/'

         unix:0:system_misc:avenrun_15min        3
         unix:0:system_misc:avenrun_1min 4
         unix:0:system_misc:avenrun_5min 2



       Example 2 Using the kstat Command


         example$ kstat -p -m cpu_stat -s 'intr*'
         example$ kstat -p cpu_stat:::/^intr/

         cpu_stat:0:cpu_stat0:intr       29682330
         cpu_stat:0:cpu_stat0:intrblk    87
         cpu_stat:0:cpu_stat0:intrthread 15054222
         cpu_stat:1:cpu_stat1:intr       426073
         cpu_stat:1:cpu_stat1:intrblk    51
         cpu_stat:1:cpu_stat1:intrthread 289668
         cpu_stat:2:cpu_stat2:intr       134160
         cpu_stat:2:cpu_stat2:intrblk    0
         cpu_stat:2:cpu_stat2:intrthread 131
         cpu_stat:3:cpu_stat3:intr       196566
         cpu_stat:3:cpu_stat3:intrblk    30
         cpu_stat:3:cpu_stat3:intrthread 59626



       Example 3 Using the kstat Command


         example$ kstat -p :::state ':::avenrun*'
         example$ kstat -p :::state :::/^avenrun/

         cpu_info:0:cpu_info0:state      on-line
         cpu_info:1:cpu_info1:state      on-line
         cpu_info:2:cpu_info2:state      on-line
         cpu_info:3:cpu_info3:state      on-line
         unix:0:system_misc:avenrun_15min        4
         unix:0:system_misc:avenrun_1min 10
         unix:0:system_misc:avenrun_5min 3



       Example 4 Using the kstat Command


         example$ kstat -p 'unix:0:system_misc:avenrun*' 1 3
         unix:0:system_misc:avenrun_15min        15
         unix:0:system_misc:avenrun_1min 11
         unix:0:system_misc:avenrun_5min 21

         unix:0:system_misc:avenrun_15min        15
         unix:0:system_misc:avenrun_1min 11
         unix:0:system_misc:avenrun_5min 21

         unix:0:system_misc:avenrun_15min        15
         unix:0:system_misc:avenrun_1min 11
         unix:0:system_misc:avenrun_5min 21



       Example 5 Using the kstat Command


         example$ kstat -p -T d 'unix:0:system_misc:avenrun*' 5 2
         Thu Jul 22 19:39:50 1999
         unix:0:system_misc:avenrun_15min        12
         unix:0:system_misc:avenrun_1min 0
         unix:0:system_misc:avenrun_5min 11

         Thu Jul 22 19:39:55 1999
         unix:0:system_misc:avenrun_15min        12
         unix:0:system_misc:avenrun_1min 0
         unix:0:system_misc:avenrun_5min 11



       Example 6 Using the kstat Command


         example$ kstat -p -T u 'unix:0:system_misc:avenrun*'
         932668656
         unix:0:system_misc:avenrun_15min        14
         unix:0:system_misc:avenrun_1min 5
         unix:0:system_misc:avenrun_5min 18



EXIT STATUS
       The following exit values are returned:

       0    One or more statistics were matched.


       1    No statistics were matched.


       2    Invalid command line options were specified.


       3    A fatal error occurred.


FILES
       /dev/kstat    kernel statistics driver


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       tab() box; lw(2.75i) |lw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE  TYPEAT‐
       TRIBUTE VALUE _ Availabilitysystem/core-os


SEE ALSO
       date(1),   sh(1),   time(2),  gmatch(3GEN),  kstat(3KSTAT),  kstat(4D),
       sd(4D), attributes(7), kstat(9S), kstat2(3KSTAT2), kstat2(8)

NOTES
       If the pattern argument contains glob or Perl RE  metacharacters  which
       are also shell metacharacters, it will be necessary to enclose the pat‐
       tern with appropriate shell quotes.


       The use of this command is deprecated. It may be removed  in  a  future
       release  of  Oracle  Solaris. Use of kstat2 command is recommended. For
       more information, see the kstat2(8) man page.



Oracle Solaris 11.4               30 Jan 2017                         kstat(8)
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