👤
Home Man
Search
Today's Posts
Register

Linux & Unix Commands - Search Man Pages
Man Page or Keyword Search:
Select Section of Man Page:
Select Man Page Repository:

NetBSD 6.1.5 - man page for sa (netbsd section 8)

SA(8)				   BSD 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.

     sa 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 otherwise 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 com-
	     mand, 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 number of disk I/O oper-
	     ations.

     -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 memory usage.  If
	     printing user statistics, print the CPU-time average 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 per-
	     formed, 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 sta-
     tistics 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 storage integral for each
     user.  If the -u option is specified, the uid, user and system time (in seconds), CPU stor-
     age integral, I/O usage, and command 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 speci-
     fied, only the -b, -d, -i, -k, -q, and -s flags are honored.

     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)

HISTORY
     sa was written for NetBSD 1.0 from the specification provided by various systems' manual
     pages.  Its date of origin is unknown to the author.

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

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.

     NetBSD's 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 ver-
     sion, there are some intentional differences and undoubtedly 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 than the
     those used by the original version.  This is not considered a problem, however, because the
     accounting record format has changed as well (since user ids are now 32 bits).

BSD					February 25, 1994				      BSD


All times are GMT -4. The time now is 08:04 AM.

Unix & Linux Forums Content Copyrightę1993-2018. All Rights Reserved.
×
UNIX.COM Login
Username:
Password:  
Show Password