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/*
* $Id$
*/
#include <rtems.h>
#include <stdlib.h>
#include <stdio.h>
#include <assert.h>
#include <rtems/rtmonuse.h>
typedef struct {
rtems_id id;
unsigned32 count;
unsigned32 missed_count;
unsigned32 min_cpu_time;
unsigned32 max_cpu_time;
unsigned32 total_cpu_time;
unsigned32 min_wall_time;
unsigned32 max_wall_time;
unsigned32 total_wall_time;
} Period_usage_t;
Period_usage_t *Period_usage_Information;
/*PAGE
*
* Period_usage_Initialize
*/
void Period_usage_Initialize( void )
{
int maximum;
maximum = _Configuration_Table->RTEMS_api_configuration->maximum_periods;
Period_usage_Information = malloc( sizeof(Period_usage_t) * (maximum+1) );
Period_usage_Reset();
}
/*PAGE
*
* Period_usage_Reset
*/
void Period_usage_Reset( void )
{
unsigned32 i;
Period_usage_t *the_usage;
for ( i=0 ;
i<_Configuration_Table->RTEMS_api_configuration->maximum_periods ;
i++ ) {
the_usage = &Period_usage_Information[ i ];
the_usage->count = 0;
the_usage->missed_count = 0;
the_usage->min_cpu_time = 0xFFFFFFFF;
the_usage->max_cpu_time = 0;
the_usage->total_cpu_time = 0;
the_usage->min_wall_time = 0xFFFFFFFF;
the_usage->max_wall_time = 0;
the_usage->total_wall_time = 0;
}
}
/*PAGE
*
* Period_usage_Update
*/
void Period_usage_Update(
rtems_id id
)
{
rtems_rate_monotonic_period_status rm_status;
rtems_status_code status;
Period_usage_t *the_usage;
assert( Period_usage_Information );
status = rtems_rate_monotonic_get_status( id, &rm_status );
assert( status == RTEMS_SUCCESSFUL );
the_usage = &Period_usage_Information[ rtems_get_index( id ) ];
the_usage->id = id;
the_usage->count++;
if ( rm_status.state == RATE_MONOTONIC_EXPIRED )
the_usage->missed_count++;
the_usage->total_cpu_time += rm_status.ticks_executed_since_last_period;
the_usage->total_wall_time += rm_status.ticks_since_last_period;
/*
* Update CPU time
*/
if ( rm_status.ticks_executed_since_last_period < the_usage->min_cpu_time )
the_usage->min_cpu_time = rm_status.ticks_executed_since_last_period;
if ( rm_status.ticks_executed_since_last_period > the_usage->max_cpu_time )
the_usage->max_cpu_time = rm_status.ticks_executed_since_last_period;
/*
* Update Wall time
*/
if ( rm_status.ticks_since_last_period < the_usage->min_wall_time )
the_usage->min_wall_time = rm_status.ticks_since_last_period;
if ( rm_status.ticks_since_last_period > the_usage->max_wall_time )
the_usage->max_wall_time = rm_status.ticks_since_last_period;
}
/*PAGE
*
* Period_usage_Dump
*/
void Period_usage_Dump( void )
{
unsigned32 i;
Period_usage_t *the_usage;
Rate_monotonic_Control *the_period;
unsigned32 u32_name;
char name[5];
if ( !Period_usage_Information ) {
printf( "Period statistics library is not initialized\n" );
return;
}
printf( "Period information by period\n" );
printf( " ID OWNER PERIODS MISSED CPU TIME WALL TIME\n" );
/*
* RTEMS does not use an index of zero for object ids.
*/
for ( i=1 ;
i<_Configuration_Table->RTEMS_api_configuration->maximum_periods ;
i++ ) {
the_usage = &Period_usage_Information[ i ];
if ( the_usage->count == 0 )
continue;
the_period =
(Rate_monotonic_Control *)_Rate_monotonic_Information.local_table[ i ];
if ( the_period->owner )
u32_name = *(unsigned32 *)the_period->owner->Object.name;
else
u32_name = rtems_build_name(' ', ' ', ' ', ' ');
name[ 0 ] = (u32_name >> 24) & 0xff;
name[ 1 ] = (u32_name >> 16) & 0xff;
name[ 2 ] = (u32_name >> 8) & 0xff;
name[ 3 ] = (u32_name >> 0) & 0xff;
name[ 4 ] = '\0';
printf(
"0x%08x %4s %6d %3d %d/%d/%5.2f %d/%d/%3.2f\n",
the_usage->id,
name,
the_usage->count,
the_usage->missed_count,
the_usage->min_cpu_time,
the_usage->max_cpu_time,
(double) the_usage->total_cpu_time / (double) the_usage->count,
the_usage->min_wall_time,
the_usage->max_wall_time,
(double) the_usage->total_wall_time / (double) the_usage->count
);
}
}
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