/*
* Rate Monotonic Manager -- Report Statistics for All Periods
*
* 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.
*
* $Id$
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems.h>
#include <stdlib.h>
#include <ctype.h>
#include <inttypes.h>
#include <rtems/bspIo.h>
#include <rtems/score/timespec.h>
#ifndef __RTEMS_USE_TICKS_FOR_STATISTICS__
/* We print to 1/10's of milliseconds */
#define NANOSECONDS_DIVIDER 1000
#define PERCENT_FMT "%04" PRId32
#define NANOSECONDS_FMT "%06" PRId32
#endif
/*
* This directive allows a thread to print the statistics information
* on ALL period instances which have non-zero counts using printk.
*
* The implementation of this directive straddles the fence between
* inside and outside of RTEMS. It is presented as part of the Manager
* but actually uses other services of the Manager.
*/
void rtems_rate_monotonic_report_statistics_with_plugin(
void *context,
rtems_printk_plugin_t print
)
{
rtems_status_code status;
rtems_id id;
rtems_rate_monotonic_period_statistics the_stats;
rtems_rate_monotonic_period_status the_status;
char name[5];
if ( !print )
return;
(*print)( context, "Period information by period\n" );
#ifndef __RTEMS_USE_TICKS_FOR_STATISTICS__
(*print)( context, "--- CPU times are in seconds ---\n" );
(*print)( context, "--- Wall times are in seconds ---\n" );
#endif
/*
Layout by columns -- in memory of Hollerith :)
1234567890123456789012345678901234567890123456789012345678901234567890123456789\
ID OWNER COUNT MISSED X
ididididid NNNN ccccc mmmmmm X
Uncomment the following if you are tinkering with the formatting.
Be sure to test the various cases.
(*print)( context,"\
1234567890123456789012345678901234567890123456789012345678901234567890123456789\
\n");
*/
(*print)( context, " ID OWNER COUNT MISSED "
#ifndef __RTEMS_USE_TICKS_FOR_STATISTICS__
" "
#endif
"CPU TIME "
#ifndef __RTEMS_USE_TICKS_FOR_STATISTICS__
" "
#endif
" WALL TIME\n"
);
(*print)( context, " "
#ifndef __RTEMS_USE_TICKS_FOR_STATISTICS__
" "
#endif
"MIN/MAX/AVG "
#ifndef __RTEMS_USE_TICKS_FOR_STATISTICS__
" "
#endif
" MIN/MAX/AVG\n"
);
/*
* Cycle through all possible ids and try to report on each one. If it
* is a period that is inactive, we just get an error back. No big deal.
*/
for ( id=_Rate_monotonic_Information.minimum_id ;
id <= _Rate_monotonic_Information.maximum_id ;
id++ ) {
status = rtems_rate_monotonic_get_statistics( id, &the_stats );
if ( status != RTEMS_SUCCESSFUL )
continue;
/* If the above passed, so should this but check it anyway */
status = rtems_rate_monotonic_get_status( id, &the_status );
#if defined(RTEMS_DEBUG)
if ( status != RTEMS_SUCCESSFUL )
continue;
#endif
rtems_object_get_name( the_status.owner, sizeof(name), name );
/*
* Print part of report line that is not dependent on granularity
*/
(*print)( context,
"0x%08" PRIx32 " %4s %5" PRId32 " %6" PRId32 " ",
id, name,
the_stats.count, the_stats.missed_count
);
/*
* If the count is zero, don't print statistics
*/
if (the_stats.count == 0) {
(*print)( context, "\n" );
continue;
}
/*
* print CPU Usage part of statistics
*/
{
#ifndef __RTEMS_USE_TICKS_FOR_STATISTICS__
struct timespec cpu_average;
struct timespec *min_cpu = &the_stats.min_cpu_time;
struct timespec *max_cpu = &the_stats.max_cpu_time;
struct timespec *total_cpu = &the_stats.total_cpu_time;
_Timespec_Divide_by_integer( total_cpu, the_stats.count, &cpu_average );
(*print)( context,
"%" PRId32 "." NANOSECONDS_FMT "/" /* min cpu time */
"%" PRId32 "." NANOSECONDS_FMT "/" /* max cpu time */
"%" PRId32 "." NANOSECONDS_FMT " ", /* avg cpu time */
_Timespec_Get_seconds( min_cpu ),
_Timespec_Get_nanoseconds( min_cpu ) / NANOSECONDS_DIVIDER,
_Timespec_Get_seconds( max_cpu ),
_Timespec_Get_nanoseconds( max_cpu ) / NANOSECONDS_DIVIDER,
_Timespec_Get_seconds( &cpu_average ),
_Timespec_Get_nanoseconds( &cpu_average ) / NANOSECONDS_DIVIDER
);
#else
uint32_t ival_cpu, fval_cpu;
ival_cpu = the_stats.total_cpu_time * 100 / the_stats.count;
fval_cpu = ival_cpu % 100;
ival_cpu /= 100;
(*print)( context,
"%3" PRId32 "/%4" PRId32 "/%3" PRId32 ".%02" PRId32 " ",
the_stats.min_cpu_time, the_stats.max_cpu_time, ival_cpu, fval_cpu
);
#endif
}
/*
* print wall time part of statistics
*/
{
#ifndef __RTEMS_USE_TICKS_FOR_STATISTICS__
struct timespec wall_average;
struct timespec *min_wall = &the_stats.min_wall_time;
struct timespec *max_wall = &the_stats.max_wall_time;
struct timespec *total_wall = &the_stats.total_wall_time;
_Timespec_Divide_by_integer(total_wall, the_stats.count, &wall_average);
(*print)( context,
"%" PRId32 "." NANOSECONDS_FMT "/" /* min wall time */
"%" PRId32 "." NANOSECONDS_FMT "/" /* max wall time */
"%" PRId32 "." NANOSECONDS_FMT "\n", /* avg wall time */
_Timespec_Get_seconds( min_wall ),
_Timespec_Get_nanoseconds( min_wall ) / NANOSECONDS_DIVIDER,
_Timespec_Get_seconds( max_wall ),
_Timespec_Get_nanoseconds( max_wall ) / NANOSECONDS_DIVIDER,
_Timespec_Get_seconds( &wall_average ),
_Timespec_Get_nanoseconds( &wall_average ) / NANOSECONDS_DIVIDER
);
#else
uint32_t ival_wall, fval_wall;
ival_wall = the_stats.total_wall_time * 100 / the_stats.count;
fval_wall = ival_wall % 100;
ival_wall /= 100;
(*print)( context,
"%3" PRId32 "/%4" PRId32 "/%3" PRId32 ".%02" PRId32 "\n",
the_stats.min_wall_time, the_stats.max_wall_time, ival_wall, fval_wall
);
#endif
}
}
}
void rtems_rate_monotonic_report_statistics( void )
{
rtems_rate_monotonic_report_statistics_with_plugin( NULL, printk_plugin );
}
