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STATS(1)		    General Commands Manual		      STATS(1)

NAME
       stats, auxstats - display graphs	of system activity

SYNOPSIS
       stats [ -option ] [ machine[:path] ...  ]

       auxstats	[ machine [ path ] ]

DESCRIPTION
       Stats  displays	a rolling graph	of various statistics collected	by the
       operating system	and updated once per second.  The  statistics  may  be
       from a remote machine or	multiple machines, whose graphs	will appear in
       adjacent	columns.  The columns are labeled by the machine names and the
       number of processors on the machine if it is a multiprocessor.

       Auxstats	collects the machine statistics	for display by stats.  With no
       arguments, it collects statistics from the local	machine.   If  machine
       is  named,  it  executes	 ssh machine path; when	ssh finishes, auxstats
       sleeps for one minute and runs it again.	 The default  path  is	simply
       auxstats, but since some	shells do not execute any sort of user profile
       when run	as a non-login shell, it is often necessary to specify an  ex-
       act path.

       The  right  mouse button	presents a menu	to enable and disable the dis-
       play of various statistics; by default, stats  begins  by  showing  the
       load average on the executing machine.

       The lower-case options choose the initial set to	display:

       b battery
	      percentage battery life remaining.

       c context
	      number of	process	context	switches per second.

       e ether
	      total number of packets sent and received	per second.

       E etherin,out
	      number  of  packets  sent	 and received per second, displayed as
	      separate graphs.

       f fault
	      number of	page faults per	second.

       i intr number of	interrupts per second.

       l load (default)	system load average.  The load is computed as  a  run-
	      ning average of the number of processes ready to run, multiplied
	      by 1000.	On most	systems, it changes only  every	 five  seconds
	      and has limited accuracy.

       m mem  total  pages  of active memory.  The graph displays the fraction
	      of the machine's total memory in use.

       n etherin,out,err
	      number of	packets	sent and received per second, and total	number
	      of errors, displayed as separate graphs.

       s syscall
	      number of	system calls per second.

       w 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  ma-
	      chine.

       8 802.11b
	      display  the  signal  strength  detected by the 802.11b wireless
	      ether card; the value is usually below 50% unless	 the  receiver
	      is in the	same room as the transmitter, so a midrange value rep-
	      resents a	strong signal.

       The graphs are plotted with time	on the horizontal axis.	 The  vertical
       axes  range  from 0 to 1000*sleepsecs, multiplied by the	number of pro-
       cessors on the machine when appropriate.	 The only exceptions are  mem-
       ory,  and  swap	space, which display fractions of the total available,
       system load, which displays a number between 0 and 1000,	idle and intr,
       which display percentages and the Ethernet error	count, which goes from
       0 to 10..  If the value of the parameter	is too large for  the  visible
       range,  its  value  is shown in decimal in the upper left corner	of the
       graph.

       Upper-case options control details of the display.  All graphs are  af-
       fected; there is	no mechanism to	affect only one	graph.

       -T sleepsecs
	      Set  the number of seconds between samples to sleepsecs (default
	      one second).

       -S scale
	      Sets a scale factor for the displays.  A value of	2,  for	 exam-
	      ple, means that the highest value	plotted	will be	twice as large
	      as the default.

       -L     Plot all graphs with logarithmic y axes.	The graph  is  plotted
	      so  the  maximum value that would	be displayed on	a linear graph
	      is 2/3 of	the way	up the y axis and the total range of the graph
	      is  a  factor of 1000; thus the y	origin is 1/100	of the default
	      maximum value and	the top	of the graph is	10 times  the  default
	      maximum.

       -Y     If the display is	large enough to	show them, place value markers
	      along the	y axes of the graphs.  Since one set of	markers	serves
	      for  all	machines across	the display, the values	in the markers
	      disregard	scaling	factors	due to multiple	processors on the  ma-
	      chines.  On  a  graph for	a multiprocessor, the displayed	values
	      will be larger than the markers indicate.	  The  markers	appear
	      along  the right,	and the	markers	show values appropriate	to the
	      rightmost	machine; this only matters for graphs such  as	memory
	      that have	machine-specific maxima.

       Typing `q' or DEL causes	stats to exit.

EXAMPLE
       Show  the load, memory, interrupts, system calls, context switches, and
       ethernet	packets	for the	local machine, a remote	 BSD  machine  daemon,
       and  a remote Linux machine tux.	 Auxstats is not in tux's path,	so the
       full path must be given.

	      stats -lmisce `hostname` daemon \
		  tux:/bin/auxstats

SOURCE
       /src/cmd/draw/stats.c

       /src/cmd/auxstats

BUGS
       The auxstats binary needs read access to	/dev/kmem in order to  collect
       network	statistics  on	non-Linux  systems.  Typically this can	be ar-
       ranged by setting the auxstat binary's group to kmem and	 then  turning
       on its set-gid bit.

								      STATS(1)

NAME | SYNOPSIS | DESCRIPTION | EXAMPLE | SOURCE | BUGS

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