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SA(8)			FreeBSD	System Manager's Manual			 SA(8)

NAME
     sa	-- print system	accounting statistics

SYNOPSIS
     sa	[-abcdDfijkKlmnqrstu] [-v cutoff] [file	...]

DESCRIPTION
     The sa utility reports on,	cleans up, and generally maintains system
     accounting	files.

     The sa utility is able to condense	the information	in /var/account/acct
     into the summary files /var/account/savacct and /var/account/usracct,
     which contain system statistics according to command name and login id,
     respectively.  This condensation is desirable because on a	large system,
     /var/account/acct can grow	by hundreds of blocks per day.	The summary
     files are normally	read before the	accounting file, so that reports
     include all available information.

     If	file names are supplied, they are read instead of /var/account/acct.
     After each	file is	read, if the summary files are being updated, an
     updated summary will be saved to disk.  Only one report is	printed, after
     the last file is processed.

     The labels	used in	the output indicate the	following, except where	other-
     wise specified by individual options:

     avio   Average number of I/O operations per execution

     cp	    Sum	of user	and system time, in minutes

     cpu    Same as cp

     k	    CPU-time averaged core usage, in 1k	units

     k*sec  CPU	storage	integral, in 1k-core seconds

     re	    Real time, in minutes

     s	    System time, in minutes

     tio    Total number of I/O	operations

     u	    User time, in minutes

     The options to sa are:

     -a	     List all command names, including those containing	unprintable
	     characters	and those used only once.  By default, sa places all
	     names containing unprintable characters and those used only once
	     under the name ``***other''.

     -b	     If	printing command statistics, sort output by the	sum of user
	     and system	time divided by	number of calls.

     -c	     In	addition to the	number of calls	and the	user, system and real
	     times for each command, print their percentage of the total over
	     all commands.

     -d	     If	printing command statistics, sort by the average number	of
	     disk I/O operations.  If printing user statistics,	print the
	     average number of disk I/O	operations per user.

     -D	     If	printing command statistics, sort and print by the total num-
	     ber of disk I/O operations.

     -f	     Force no interactive threshold comparison with the	-v option.

     -i	     Do	not read in the	summary	files.

     -j	     Instead of	the total minutes per category,	give seconds per call.

     -k	     If	printing command statistics, sort by the cpu-time average mem-
	     ory usage.	 If printing user statistics, print the	cpu-time aver-
	     age memory	usage.

     -K	     If	printing command statistics, print and sort by the cpu-storage
	     integral.

     -l	     Separate system and user time; normally they are combined.

     -m	     Print per-user statistics rather than per-command statistics.

     -n	     Sort by number of calls.

     -q	     Create no output other than error messages.

     -r	     Reverse order of sort.

     -s	     Truncate the accounting files when	done and merge their data into
	     the summary files.

     -t	     For each command, report the ratio	of real	time to	the sum	of
	     user and system cpu times.	 If the	cpu time is too	small to
	     report, ``*ignore*'' appears in this field.

     -u	     Superseding all other flags, for each entry in the	accounting
	     file, print the user ID, total seconds of cpu usage, total	memory
	     usage, number of I/O operations performed,	and command name.

     -v	cutoff
	     For each command used cutoff times	or fewer, print	the command
	     name and await a reply from the terminal.	If the reply begins
	     with ``y'', add the command to the	category ``**junk**''.	This
	     flag is used to strip garbage from	the report.

     By	default, per-command statistics	will be	printed.  The number of	calls,
     the total elapsed time in minutes,	total cpu and user time	in minutes,
     average number of I/O operations, and CPU-time averaged core usage	will
     be	printed.  If the -m option is specified, per-user statistics will be
     printed, including	the user name, the number of commands invoked, total
     cpu time used (in minutes), total number of I/O operations, and CPU stor-
     age integral for each user.  If the -u option is specified, the uid, user
     and system	time (in seconds), CPU storage integral, I/O usage, and	com-
     mand name will be printed for each	entry in the accounting	data file.

     If	the -u flag is specified, all flags other than -q are ignored.	If the
     -m	flag is	specified, only	the -b,	-d, -i,	-k, -q,	and -s flags are hon-
     ored.

DIAGNOSTICS
     The sa utility exits 0 on success,	and >0 if an error occurs.

FILES
     /var/account/acct	   raw accounting data file
     /var/account/savacct  per-command accounting summary database
     /var/account/usracct  per-user accounting summary database

SEE ALSO
     lastcomm(1), acct(5), ac(8), accton(8)

BUGS
     The number	of options to this program is absurd, especially considering
     that there's not much logic behind	their lettering.

     The field labels should be	more consistent.

     The VM system does	not record the CPU storage integral.

CAVEATS
     While the behavior	of the options in this version of sa was modeled after
     the original version, there are some intentional differences and undoubt-
     edly some unintentional ones as well.  In particular, the -q option has
     been added, and the -m option now understands more	options	than it	used
     to.

     The formats of the	summary	files created by this version of sa are	very
     different from the	those used by the original version.  This is not con-
     sidered a problem,	however, because the accounting	record format has
     changed as	well (since user ids are now 32	bits).

AUTHORS
     Chris G. Demetriou	<cgd@postgres.berkeley.edu>

FreeBSD	9.2		       February	25, 1994		   FreeBSD 9.2

NAME | SYNOPSIS | DESCRIPTION | DIAGNOSTICS | FILES | SEE ALSO | BUGS | CAVEATS | AUTHORS

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