Files
rtems/cpukit/libmisc/cpuuse
Joel Sherrill 793dd46d64 2007-07-18 Joel Sherrill <joel.sherrill@oarcorp.com>
* libmisc/Makefile.am, libmisc/cpuuse/cpuusagereport.c,
	libmisc/cpuuse/cpuusagereset.c: Fix bug where cpu usage calculation
	was always using uptime not time since last cpu usage reset when
	using nanoseconds granularity.
	* libmisc/cpuuse/cpuusagedata.c: New file.
2007-07-18 21:31:49 +00:00
..

#
#  $Id$
#

This directory contains code to report and reset per-task CPU usage.
If the BSP supports nanosecond timestamp granularity, this this information
is very accurate.  Otherwise, it is dependendent on the tick granularity. 

It provides two primary features:

  + Generate a CPU Usage Report
  + Reset CPU Usage Information

NOTES:

1.  If configured for tick granularity, CPU usage is "docked" by a
    clock tick at each context switch.
2.  If configured for nanosecond granularity, no work is done at each
    clock tick.  All bookkeeping is done as part of a context switch.