NAME

sadc - system activity data collector

SYNOPSIS

sadc t n

DESCRIPTION

sadc samples cumulative activity counters in /proc filesystem at n intervals of t seconds and writes it to the standard output.

This program is back-end for sar monitor. You can't obtain data from this program in human readable form.

RETURN VALUE

If programs ends successfully then returns exit code 0. If program fails, functions then returns:

  1. Program wasn't able to read performance data.

  2. The n parameter is invalid.

  3. The t parameter is invalid.

  4. A few arguments is missing.

KNOWN BUGS

This sar/sadc may be unstable. If is system very load (busy) you can get some unusable data (wait interval between samples goes to zero), if you use short sampling interval.

Sometimes may program hangs itself.

BUGS REPORTING

Report bugs to linux_monitor(at)volny(dot)cz .

Please use subject: bug report and related form, which is available at: Bug Report

Or in source distribution ./web/bug_rep.html.

COPYRIGHT

This function is wroted as part of system activity utilities for Linux system and may be freely distributed under GPL terms.

Copyright (c) 1995, 2001 David Doubrava (e-mail: linux_monitor(at)volny(dot)cz ).

SEE ALSO

Origin of values description is in Linux kernel source.

sa1, sadc, sar