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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [libmisc/] [rtmonuse/] [rtmonuse.c] - Blame information for rev 493

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1 30 unneback 
/*
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 *  $Id: rtmonuse.c,v 1.2 2001-09-27 12:01:44 chris Exp $
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 */
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#include <rtems.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <assert.h>
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#include <rtems/rtmonuse.h>
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typedef struct {
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  rtems_id     id;
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  unsigned32   count;
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  unsigned32   missed_count;
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  unsigned32   min_cpu_time;
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  unsigned32   max_cpu_time;
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  unsigned32   total_cpu_time;
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  unsigned32   min_wall_time;
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  unsigned32   max_wall_time;
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  unsigned32   total_wall_time;
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}  Period_usage_t;
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Period_usage_t *Period_usage_Information;
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/*PAGE
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 *
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 *  Period_usage_Initialize
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 */
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void Period_usage_Initialize( void )
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{
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  int             maximum;
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  maximum = _Configuration_Table->RTEMS_api_configuration->maximum_periods;
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  Period_usage_Information = malloc( sizeof(Period_usage_t) * (maximum+1) );
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  Period_usage_Reset();
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}
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/*PAGE
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 *
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 *  Period_usage_Reset
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 */
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void Period_usage_Reset( void )
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{
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  unsigned32      i;
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  Period_usage_t *the_usage;
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  for ( i=0 ;
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        i<_Configuration_Table->RTEMS_api_configuration->maximum_periods ;
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        i++ ) {
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    the_usage = &Period_usage_Information[ i ];
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    the_usage->count           = 0;
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    the_usage->missed_count    = 0;
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    the_usage->min_cpu_time    = 0xFFFFFFFF;
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    the_usage->max_cpu_time    = 0;
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    the_usage->total_cpu_time  = 0;
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    the_usage->min_wall_time   = 0xFFFFFFFF;
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    the_usage->max_wall_time   = 0;
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    the_usage->total_wall_time = 0;
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  }
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}
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/*PAGE
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 *
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 *  Period_usage_Update
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 */
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void Period_usage_Update(
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  rtems_id     id
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)
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{
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  rtems_rate_monotonic_period_status rm_status;
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  rtems_status_code                  status;
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  Period_usage_t                    *the_usage;
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  assert( Period_usage_Information );
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  status = rtems_rate_monotonic_get_status( id, &rm_status );
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  assert( status == RTEMS_SUCCESSFUL );
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  the_usage = &Period_usage_Information[ rtems_get_index( id ) ];
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  the_usage->id = id;
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  the_usage->count++;
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  if ( rm_status.state == RATE_MONOTONIC_EXPIRED )
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    the_usage->missed_count++;
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  the_usage->total_cpu_time  += rm_status.ticks_executed_since_last_period;
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  the_usage->total_wall_time += rm_status.ticks_since_last_period;
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  /*
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   *  Update CPU time
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   */
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  if ( rm_status.ticks_executed_since_last_period < the_usage->min_cpu_time )
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    the_usage->min_cpu_time = rm_status.ticks_executed_since_last_period;
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  if ( rm_status.ticks_executed_since_last_period > the_usage->max_cpu_time )
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    the_usage->max_cpu_time = rm_status.ticks_executed_since_last_period;
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  /*
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   *  Update Wall time
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   */
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  if ( rm_status.ticks_since_last_period < the_usage->min_wall_time )
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    the_usage->min_wall_time = rm_status.ticks_since_last_period;
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  if ( rm_status.ticks_since_last_period > the_usage->max_wall_time )
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    the_usage->max_wall_time = rm_status.ticks_since_last_period;
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}
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/*PAGE
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 *
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 *  Period_usage_Dump
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 */
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void Period_usage_Dump( void )
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{
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  unsigned32              i;
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  Period_usage_t         *the_usage;
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  Rate_monotonic_Control *the_period;
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  unsigned32              u32_name;
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  char                    name[5];
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  if ( !Period_usage_Information ) {
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    printf( "Period statistics library is not initialized\n" );
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    return;
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  }
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  printf( "Period information by period\n" );
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  printf( "   ID      OWNER   PERIODS  MISSED    CPU TIME    WALL TIME\n" );
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  /*
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   *  RTEMS does not use an index of zero for object ids.
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   */
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  for ( i=1 ;
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        i<_Configuration_Table->RTEMS_api_configuration->maximum_periods ;
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        i++ ) {
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    the_usage = &Period_usage_Information[ i ];
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    if ( the_usage->count == 0 )
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      continue;
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    the_period =
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      (Rate_monotonic_Control *)_Rate_monotonic_Information.local_table[ i ];
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    if ( the_period->owner )
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      u32_name = *(unsigned32 *)the_period->owner->Object.name;
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    else
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      u32_name = rtems_build_name(' ', ' ', ' ', ' ');
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    name[ 0 ] = (u32_name >> 24) & 0xff;
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    name[ 1 ] = (u32_name >> 16) & 0xff;
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    name[ 2 ] = (u32_name >>  8) & 0xff;
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    name[ 3 ] = (u32_name >>  0) & 0xff;
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    name[ 4 ] = '\0';
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    printf(
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      "0x%08x  %4s   %6d   %3d       %d/%d/%5.2f    %d/%d/%3.2f\n",
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      the_usage->id,
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      name,
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      the_usage->count,
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      the_usage->missed_count,
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      the_usage->min_cpu_time,
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      the_usage->max_cpu_time,
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      (double) the_usage->total_cpu_time / (double) the_usage->count,
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      the_usage->min_wall_time,
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      the_usage->max_wall_time,
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      (double) the_usage->total_wall_time / (double) the_usage->count
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    );
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  }
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}

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