HP-UX Reference (11i v1 00/12) - 1 User Commands N-Z (vol 2)
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STANDARD Printed by: Nora Chuang [nchuang] STANDARD
/build/1111/BRICK/man1/neqn.1
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t
top(1) top(1)
NAME
top - display and update information about the top processes on the system
SYNOPSIS
top [-s time ][-d count ][-q][-u][-h][-n number ]
DESCRIPTION
top displays the top processes on the system and periodically updates the information. Raw CPU percen-
tage is used to rank the processes.
Options
top recognizes the following command-line options:
-s time Set the delay between screen updates to time seconds. The default delay between
updates is 5 seconds.
-d count Show only count displays, then exit. A display is considered to be one update of the
screen. This option is used to select the number of displays to be shown before the pro-
gram exits.
-q This option runs the top program at the same priority as if it is executed via a
nice
-20
command so that it will execute faster (see nice(1)). This can be very useful in dis-
covering any system problem when the system is very sluggish. This option is accessibly
only to users who have appropriate privileges.
-u User ID (uid) numbers are displayed instead of usernames. This improves execution
speed by eliminating the additional time required to map uid numbers to user names.
-h Hides the individual CPU state information for systems having multiple processors. Only
the average CPU status will be displayed.
-n number Show only number processes per screen. Note that this option is ignored if number is
greater than the maximum number of processes that can be displayed per screen.
Screen-Control Commands
When displaying multiple-screen data,
top recognizes the following keyboard screen-control commands:
j Display next screen if the current screen is not the last screen.
k Display previous screen if the current screen is not the first screen.
t Display the first (top) screen.
Program Termination
To exit the program and resume normal user activities, type q at any time.
Display Description
Three general classes of information are displayed by top:
System Data:
The first few lines at the top of the display show general information about the state of the sys-
tem, including:
• System name and current time.
• Load averages in the last one, five, and fifteen minutes of all the active processors in the
system.
• Number of existing processes and the number of processes in each state (sleeping, wait-
ing, running, starting, zombie, and stopped).
• Percentage of time spent in each of the processor states (user, nice, system, idle, inter-
rupt and swapper) per active processor on the system.
• Average value for each of the active processor states (only on multi-processor systems).
Memory Data
Includes virtual and real memory in use (with the amount of memory considered "active" in
parentheses) and the amount of free memory.
HP-UX Release 11i: December 2000 − 1 − Section 1−−935
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