DESCRIPTION
kgmon is a tool used when profiling the operating system. When no arguments are supplied,
kgmon indicates the state of operating system profiling 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 core
-
Extract values associated with the name list from the specified core instead of the default /dev/kmem.
-
-N system
-
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.