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/* |
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* CPU Usage Reporter |
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* |
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* COPYRIGHT (c) 1989-2009 |
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* On-Line Applications Research Corporation (OAR). |
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* |
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* The license and distribution terms for this file may be |
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* found in the file LICENSE in this distribution or at |
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* http://www.rtems.com/license/LICENSE. |
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* |
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* $Id$ |
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*/ |
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#include "lfr_cpu_usage_report.h" |
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#include "fsw_params.h" |
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extern rtems_id Task_id[]; |
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unsigned char lfr_rtems_cpu_usage_report( void ) |
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{ |
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uint32_t api_index; |
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uint32_t information_index; |
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Thread_Control *the_thread; |
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Objects_Information *information; |
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uint32_t ival; |
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uint32_t fval; |
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#ifndef __RTEMS_USE_TICKS_FOR_STATISTICS__ |
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Timestamp_Control uptime; |
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Timestamp_Control total; |
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Timestamp_Control ran; |
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#else |
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#error "Can't compute CPU usage using ticks on LFR" |
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#endif |
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unsigned char cpu_load; |
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ival = 0; |
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cpu_load = 0; |
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✓✓ |
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for ( api_index = 1 ; api_index <= OBJECTS_APIS_LAST ; api_index++ ) |
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{ |
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✓✓ |
518528 |
if ( !_Objects_Information_table[ api_index ] ) { } |
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else |
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{ |
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information = _Objects_Information_table[ api_index ][ 1 ]; |
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✓✗ |
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if ( information != NULL ) |
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{ |
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✓✓ |
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for(information_index=1;information_index<=information->maximum;information_index++) |
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{ |
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the_thread = (Thread_Control *)information->local_table[ information_index ]; |
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✓✓ |
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if ( the_thread == NULL) { } |
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✓✓ |
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else if(the_thread->Object.id == Task_id[TASKID_SCRB]) // Only measure scrubbing task load, CPU load is 100%-Scrubbing |
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{ |
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_TOD_Get_uptime( &uptime ); |
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_Timestamp_Subtract( &CPU_usage_Uptime_at_last_reset, &uptime, &total ); |
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ran = the_thread->cpu_time_used; |
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_Timestamp_Divide( &ran, &total, &ival, &fval); |
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cpu_load = (unsigned char) (CONST_255 - ((((ival*CONST_10) + (fval/CONST_100))*CONST_256)/CONST_1000)); |
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} |
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} |
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} |
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} |
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} |
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return cpu_load; |
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} |
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