KGMON(8)                NetBSD System Manager's Manual                KGMON(8)

NAME
     kgmon -- generate a dump of the operating system's profile buffers

SYNOPSIS
     kgmon [-bdhpr] [-M core] [-N system]

DESCRIPTION
     kgmon is a tool used when profiling the operating system.  When no argu-
     ments are supplied, kgmon indicates the state of operating system profil-
     ing as running, off, or not configured (see config(1)).  If the -p flag
     is specified, kgmon extracts profile data from the operating system and
     produces a gmon.out file suitable for later analysis by gprof(1).

     The options are as follows:

     -b      Resume the collection of profile data.

     -d      Enable debug output.

     -h      Stop the collection of profile data.

     -M      Extract values associated with the name list from the specified
             core instead of the default /dev/kmem.

     -N      Extract the name list from the specified system instead of the
             default /netbsd.

     -p      Dump the contents of the profile buffers into a gmon.out file.

     -r      Reset all the profile buffers.  If the -p flag is also specified,
             the gmon.out file is generated before the buffers are reset.

     If neither -b nor -h is specified, the state of profiling collection
     remains unchanged.  For example, if the -p flag is specified and profile
     data is being collected, profiling will be momentarily suspended, the
     operating system profile buffers will be dumped, and profiling will be
     immediately resumed.

FILES
     /netbsd     the default system
     /dev/kmem   the default memory

DIAGNOSTICS
     Users with only read permission on /dev/kmem cannot change the state of
     profiling collection.  They can get a gmon.out file with the warning that
     the data may be inconsistent if profiling is in progress.

SEE ALSO
     config(1), gprof(1)

HISTORY
     The kgmon command appeared in 4.2BSD.

NetBSD 5.0_RC4                   June 6, 1993                   NetBSD 5.0_RC4

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