sa1(8) [osx man page]

sa1(8)							    BSD System Manager's Manual 						    sa1(8)

NAME

     sa1 -- Generate a system activity daily data file.

SYNOPSIS

     /usr/lib/sa/sa1 [t n]

DESCRIPTION

     The sa1 command is a shell script used to invoke the system activity data collector, sadc.  The binary sample data is collected at intervals
     t seconds apart, in a loop n times.  The binary sample data is written to the standard daily data file, /var/log/sa/sadd where the dd repre-
     sents the current day of the month.

     sa1 is intended to be started by cron.

EXAMPLE CRON ENTRY

     # Starting at 8am collect system activity records
     # every 20 minutes for 12 hours
     # 20 minutes = 1200 seconds
     # 12 hours with 3 samples each hour = 36 loops

     0 8 * * 1-5 /usr/lib/sa/sa1 1200 36

     # After the 12 hour period,
     # collect a system activity report

     30 20 * * 1-5 /usr/lib/sa/sa2 -A

FILES

     /var/log/sa/sadd  Default daily activity file that holds the binary sampling data.  dd are digits that represent the day of the month.

SEE ALSO

     crontab(1), fs_usage(1), netstat(1), sar(1), sc_usage(1), top(1), vm_stat(1), crontab(5), iostat(8), sa2(8), sadc(8)

Mac OS X							    Jul 25 2003 							  Mac OS X

sadc(8) 						    BSD System Manager's Manual 						   sadc(8)

NAME

     sadc -- system activity data collector

SYNOPSIS

     /usr/lib/sa/sadc [-m mode] [t n] [ofile]

DESCRIPTION

     The sadc tool is used to collect cumulative system activity data.	The sample system data is collected at intervals t seconds apart, in a
     loop n times.  The binary sample data is written to ofile if specified.  Otherwise, the binary data is written to stdout.	If the ofile file
     does not exist, it is created, otherwise it is truncated.

     sadc is intended to be used as the engine behind the sar(1) command, and is not typically invoked on the command line.  Two shell scripts,
     sa1 and sa2, are provided to drive the typical sampling, saving, and reporting process.

OPTIONS

     The following options modify the way data is collected by sadc.

     -m mode  Modify the collection of system statistics as specified by mode.	Currently only one mode is supported.

	      PPP      By default, the collection of ppp network interface statistics is turned off.  This is because the number of ppp connec-
		       tions can be very high, causing the raw data file to grow unexpectedly large, especially  when samples are collected at
		       short intervals.  Use the PPP mode to turn the collection back on.

EXAMPLES

     /usr/lib/sa/sadc 15 20 /tmp/sample.out

     This call collects 20 samples at 15 second intervals.  The binary data is written to the /tmp/sample.out file

FILES

     /var/log/sa/sadd  Default daily activity file that holds the binary sampling data.  dd are digits that represent the day of the month.
     /usr/lib/sa/sa1   Shell script used to drive the sar data collection.
     /usr/lib/sa/sa2   Shell script used to drive the sar data reporting.

SEE ALSO

     fs_usage(1), netstat(1), sar(1), sc_usage(1), top(1), vm_stat(1), iostat(8), sa1(8), sa2(8)

Mac OS X							    Jul 25 2003 							  Mac OS X