NAME

perfmon − graphical display of general system statistics

SYNOPSIS

perfmon [ statistic ] ...

DESCRIPTION

Perfmon provides a graphical display of the system-wide performance statistics and updates them approximately once a second.  It should be executed from a graphics tool inside the SunView system.  The time interval between updates can be adjusted by typing one of the following characters while the mouse is in the graphics subwindow:

sincreases the interval by 0.05 seconds (small s means get slower by a little).

Sincreases the interval by one second (capital S means get Slower by a lot).

fdecreases the interval by 0.05 seconds (small f means get faster by a little).

Fdecreases the interval by one second (capital F means get Faster by a lot).

Rresets the interval to the standard 1.05 seconds. 

In addition, typing:

H, h or ?
lists the characters that perfmon is listening for. 

Q or q
causes perfmon to cease executing. 

If no statistic argument is given, perfmon displays all statistics.  A tick is placed on the lines separating the graphs once every fifteen seconds (due to scheduling vagaries, these ticks may not be evenly spaced). 

Statistics

useris the percentage of total CPU time spent in normal and low priority user processes. 

system
is the percentage of total CPU time attributed to system calls and overhead.

idleis the percentage of total CPU time spent idle. 

freeis the amount of available real memory (in Kbytes). 

diskis the total number of disk transfers performed. 

interrupts
is the total number of interrupts serviced.

inputis the total number of input packets received. 

output
is the total number of output packets transmitted.

collision
is the total number of collisions between packets observed on the network.

SEE ALSO

netstat(8), perfmeter(1), suntools(1), vmstat(8)

BUGS

Perfmon should use rstatd(8C).

Sun Release 3.2  —  Last change: 1 February 1985