|
|
/*
|
|
|
* CPU Usage Reporter
|
|
|
*
|
|
|
* COPYRIGHT (c) 1989-2009
|
|
|
* On-Line Applications Research Corporation (OAR).
|
|
|
*
|
|
|
* The license and distribution terms for this file may be
|
|
|
* found in the file LICENSE in this distribution or at
|
|
|
* http://www.rtems.com/license/LICENSE.
|
|
|
*
|
|
|
* $Id$
|
|
|
*/
|
|
|
|
|
|
#include "lfr_cpu_usage_report.h"
|
|
|
#include "fsw_params.h"
|
|
|
|
|
|
extern rtems_id Task_id[];
|
|
|
|
|
|
unsigned char lfr_rtems_cpu_usage_report( void )
|
|
|
{
|
|
|
uint32_t api_index;
|
|
|
uint32_t information_index;
|
|
|
Thread_Control *the_thread;
|
|
|
Objects_Information *information;
|
|
|
uint32_t ival;
|
|
|
uint32_t fval;
|
|
|
#ifndef __RTEMS_USE_TICKS_FOR_STATISTICS__
|
|
|
Timestamp_Control uptime;
|
|
|
Timestamp_Control total;
|
|
|
Timestamp_Control ran;
|
|
|
|
|
|
#else
|
|
|
#error "Can't compute CPU usage using ticks on LFR"
|
|
|
#endif
|
|
|
|
|
|
unsigned char cpu_load;
|
|
|
|
|
|
ival = 0;
|
|
|
cpu_load = 0;
|
|
|
|
|
|
for ( api_index = 1 ; api_index <= OBJECTS_APIS_LAST ; api_index++ )
|
|
|
{
|
|
|
if ( !_Objects_Information_table[ api_index ] ) { }
|
|
|
else
|
|
|
{
|
|
|
information = _Objects_Information_table[ api_index ][ 1 ];
|
|
|
if ( information != NULL )
|
|
|
{
|
|
|
for(information_index=1;information_index<=information->maximum;information_index++)
|
|
|
{
|
|
|
the_thread = (Thread_Control *)information->local_table[ information_index ];
|
|
|
|
|
|
if ( the_thread == NULL) { }
|
|
|
else if(the_thread->Object.id == Task_id[TASKID_SCRB]) // Only measure scrubbing task load, CPU load is 100%-Scrubbing
|
|
|
{
|
|
|
_TOD_Get_uptime( &uptime );
|
|
|
_Timestamp_Subtract( &CPU_usage_Uptime_at_last_reset, &uptime, &total );
|
|
|
ran = the_thread->cpu_time_used;
|
|
|
_Timestamp_Divide( &ran, &total, &ival, &fval);
|
|
|
cpu_load = (unsigned char) (CONST_255 - ((((ival*CONST_10) + (fval/CONST_100))*CONST_256)/CONST_1000));
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
return cpu_load;
|
|
|
}
|
|
|
|
|
|
|
|
|
|
