The MONITOR PROCESSES command initiates monitoring of the
PROCESSES class, which displays information about all processes
in the system.
In a multifile summary request, the classes CLUSTER and PROCESSES
are ignored. If these classes are the only classes specified on
the command line, MONITOR does not recognize them and displays a
"no classes specified" error message.
Beginning in OpenVMS Version 8.3, four new qualifiers (
/TOPKERNEL, /TOPEXECUTIVE, /TOPSUPERVISOR, and /TOPUSER) allow
you to monitor per-process-based modes usage. These qualifiers
are useful in helping to identify the top consumers of the
various CPU modes. For example, if the MONITOR MODES command
reveals that an excessive amount of supervisor mode is being
used, the new MONITOR PROCESSES/TOPSUPERVISOR display reveals
which process-and therefore, which user-is responsible.
Format
MONITOR PROCESSES
1 – Classname Qualifiers
1.1 /TOPBIO
Specifies that a bar graph listing the top buffered I/O users
be produced instead of the standard display and summary output.
Values are expressed in units of buffered I/Os per second.
1.2 /TOPCPU
Specifies that a bar graph listing the top CPU time users be
produced instead of the standard display and summary output.
Values are expressed in units of clock ticks (10 milliseconds)
per second.
Prior to OpenVMS Version 7.3, the MONITOR PROCESSES/TOPCPU
display showed only a maximum of 8 processes on one screen. In
OpenVMS Version 7.3 and later versions, the choice of which one
of three screens is displayed is determined by the number of CPUs
on the system. (See the examples in the MONITOR chapter in the
hardcopy <REFERENCE>(vms_sysman_util_ref).)
1.3 /TOPDIO
Specifies that a bar graph listing the top direct I/O users be
produced instead of the standard display and summary output.
Values are expressed in units of direct I/Os per second.
1.4 /TOPEXECUTIVE
Specifies that a bar graph listing the top executive-mode users
be produced instead of the standard display and summary output.
Values are expressed in clock ticks (10 ms) per second.
1.5 /TOPFAULT
Specifies that a bar graph listing the top page-faulting
processes be produced instead of the standard display and summary
output. Values are expressed in number of page faults per second.
1.6 /TOPKERNEL
Specifies that a bar graph listing the top kernel-mode users
be produced instead of the standard display and summary output.
Values are expressed in clock ticks (10 ms_ per second.
1.7 /TOPSUPERVISOR
Specifies that a bar graph listing the top supervisor-mode users
be produced instead of the standard display and summary output.
Values are expressed in clock ticks (10 ms) per second.
1.8 /TOPUSER
Specifies that a bar graph listing the top user-mode users be
produced instead of the standard display and summary output.
Values are expressed in clock ticks (10 ms_ per second.