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SYSMON(8)

NAME

sysmon, stats − display graphs of system activity

SYNOPSIS

­sysmon [ ­machine ]

­stats

DESCRIPTION

­Sysmon displays a rolling graph of various statistics collected by the operating system.  The statistics may be from a remote machine.  A sample value is taken once per second. The number in the top left corner of the graph gives the peak value for the duration of the graph. 
 Lines across the graph represent 75%, 50% and 25% of the peak value. Clicking the mouse buttons anywhere in the window selects a new parameter to monitor. The parameters are:

­mem total pages of active memory.  The memory is displayed as a fraction of the machine’s total memory. 

­ether number of packets sent and received per second. 

­swap number of valid pages on the swap device.  The swap is displayed as a fraction of the number of swap pages configured by the machine. 

­contxt number of process context switches per second. 

­intr number of interrupts per second. 

­fault number of memory faults per second. 

­tlbmiss number translation lookaside buffer misses per second. 

­tlbpurge number translation lookaside buffer flushes per second. 

­load system load average.  The load is computed as a running average of the number of processes ready to run multiplied by 1000 to give some precision. 

The ­stats program is invoked by ­sysmon to display the graph. 

FILES

­/net/∗/[0-n]/stats
­#c/sysstat

BUGS

Some machines do not have TLB hardware. 

Plan 9  —  January 03, 1993

Typewritten Software • bear@typewritten.org • Edmonds, WA 98026