[PATCH] RMS scheduler overrun handling example

Gedare Bloom gedare at rtems.org
Tue Dec 20 21:57:56 UTC 2016


On Tue, Dec 20, 2016 at 4:53 PM, Kuan Hsun Chen <c0066c at gmail.com> wrote:
> Hi Gedare,
>
> I want to hold copyright. How should I do?
>
This depends on the policy of your employer/university. You should ask
your supervisor/advisor about the issue, and look for relevant
policies regarding copyright and/or open-source software.

Then, you should just list yourself in the copyright line if you are
allowed to hold the copyright, or you need to list your employer.

> Best,
> Kuan-Hsun
>
> 2016-12-20 22:51 GMT+01:00 Gedare Bloom <gedare at rtems.org>:
>>
>> On Fri, Dec 9, 2016 at 11:40 AM, Kuan-Hsun Chen <c0066c at gmail.com> wrote:
>> > ---
>> >  testsuites/sptests/Makefile.am                 |   2 +
>> >  testsuites/sptests/configure.ac                |   1 +
>> >  testsuites/sptests/sprmsched01/Makefile.am     |  21 +++++
>> >  testsuites/sptests/sprmsched01/init.c          |  69 ++++++++++++++++
>> >  testsuites/sptests/sprmsched01/sprmsched01.doc |  33 ++++++++
>> >  testsuites/sptests/sprmsched01/sprmsched01.scn |  48 ++++++++++++
>> >  testsuites/sptests/sprmsched01/system.h        |  64 +++++++++++++++
>> >  testsuites/sptests/sprmsched01/tasks.c         | 104
>> > +++++++++++++++++++++++++
>> >  8 files changed, 342 insertions(+)
>> >  create mode 100644 testsuites/sptests/sprmsched01/Makefile.am
>> >  create mode 100644 testsuites/sptests/sprmsched01/init.c
>> >  create mode 100644 testsuites/sptests/sprmsched01/sprmsched01.doc
>> >  create mode 100644 testsuites/sptests/sprmsched01/sprmsched01.scn
>> >  create mode 100644 testsuites/sptests/sprmsched01/system.h
>> >  create mode 100644 testsuites/sptests/sprmsched01/tasks.c
>> >
>> > diff --git a/testsuites/sptests/Makefile.am
>> > b/testsuites/sptests/Makefile.am
>> > index 54a4de7..4281abb 100644
>> > --- a/testsuites/sptests/Makefile.am
>> > +++ b/testsuites/sptests/Makefile.am
>> > @@ -37,6 +37,7 @@ _SUBDIRS += spfatal29
>> >  _SUBDIRS += spmutex01
>> >  _SUBDIRS += spextensions01
>> >  _SUBDIRS += spsysinit01
>> > +_SUBDIRS += sprmsched01
>> >  if HAS_SMP
>> >  else
>> >  _SUBDIRS += sp29
>> > @@ -56,6 +57,7 @@ _SUBDIRS += sptimecounter03
>> >  _SUBDIRS += spatomic01
>> >  _SUBDIRS += spintrcritical22
>> >  _SUBDIRS += spsem03
>> > +_SUBDIRS += spresource01
>> >  _SUBDIRS += spmrsp01
>> >  _SUBDIRS += spscheduler01
>> >  _SUBDIRS += spprofiling01
>> > diff --git a/testsuites/sptests/configure.ac
>> > b/testsuites/sptests/configure.ac
>> > index 76d60e3..8a55aef 100644
>> > --- a/testsuites/sptests/configure.ac
>> > +++ b/testsuites/sptests/configure.ac
>> > @@ -255,5 +255,6 @@ sptimer_err02/Makefile
>> >  spcpuset01/Makefile
>> >  spregion_err01/Makefile
>> >  sppartition_err01/Makefile
>> > +sprmsched01/Makefile
>> >  ])
>> >  AC_OUTPUT
>> > diff --git a/testsuites/sptests/sprmsched01/Makefile.am
>> > b/testsuites/sptests/sprmsched01/Makefile.am
>> > new file mode 100644
>> > index 0000000..f837b52
>> > --- /dev/null
>> > +++ b/testsuites/sptests/sprmsched01/Makefile.am
>> > @@ -0,0 +1,21 @@
>> > +
>> > +rtems_tests_PROGRAMS = sprmsched01
>> > +sprmsched01_SOURCES = init.c tasks.c system.h
>> > +
>> > +dist_rtems_tests_DATA = sprmsched01.scn
>> > +dist_rtems_tests_DATA += sprmsched01.doc
>> > +
>> > +include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP at .cfg
>> > +include $(top_srcdir)/../automake/compile.am
>> > +include $(top_srcdir)/../automake/leaf.am
>> > +
>> > +AM_CPPFLAGS += -I$(top_srcdir)/../support/include
>> > +
>> > +LINK_OBJS = $(sprmsched01_OBJECTS)
>> > +LINK_LIBS = $(sprmsched01_LDLIBS)
>> > +
>> > +sprmsched01$(EXEEXT): $(sprmsched01_OBJECTS)
>> > $(sprmsched01_DEPENDENCIES)
>> > +       @rm -f sprmsched01$(EXEEXT)
>> > +       $(make-exe)
>> > +
>> > +include $(top_srcdir)/../automake/local.am
>> > diff --git a/testsuites/sptests/sprmsched01/init.c
>> > b/testsuites/sptests/sprmsched01/init.c
>> > new file mode 100644
>> > index 0000000..7fd3e87
>> > --- /dev/null
>> > +++ b/testsuites/sptests/sprmsched01/init.c
>> > @@ -0,0 +1,69 @@
>> > +/**
>> > + * @file sprmsched01/init.c
>> > + *
>> > + * @brief A init task body for sprmsched01 example.
>> > + *
>> > + */
>> > +
>> > +/*
>> > + *  COPYRIGHT (c) 2016 Kuan-Hsun Chen, TU Dortmund University (TUDo).
>> Please determine whether you hold copyright or your employer
>>
>> > + *
>> > + *  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.
>> > + */
>> > +
>> > +#ifdef HAVE_CONFIG_H
>> > +#include "config.h"
>> > +#endif
>> > +
>> > +#define CONFIGURE_INIT
>> > +#include "system.h"
>> > +
>> > +#include <rtems/rtems/tasksimpl.h>
>> > +#include <rtems/test.h>
>> > +#include <rtems/status-checks.h>
>> > +
>> > +const char rtems_test_name[] = "Rate Monotonic 01";
>> > +
>> > +/* Global variables */
>> > +rtems_id   Task_id[ 2 ];         /* array of task ids */
>> > +rtems_name Task_name[ 2 ];       /* array of task names */
>> > +uint32_t tick_per_second;        /* time reference */
>> > +int testnumber = 11;                  /* stop condition */
>> > +
>> > +rtems_task_priority Prio[3] = {0, 2, 5};
>> > +
>> > +rtems_task Init(
>> > +       rtems_task_argument argument
>> > +)
>> > +{
>> > +  rtems_status_code status;
>> > +  TEST_BEGIN();
>> > +
>> > +
>> > +  tick_per_second = rtems_clock_get_ticks_per_second();
>> > +  printf("\nTicks per second in your system: %" PRIu32 "\n",
>> > tick_per_second);
>> > +
>> > +  Task_name[ 1 ] = rtems_build_name( 'T', 'A', '1', ' ' );
>> > +  Task_name[ 2 ] = rtems_build_name( 'T', 'A', '2', ' ' );
>> > +
>> > +  /* Create two tasks */
>> > +  for ( int index = 1; index <= 2; index++){
>> > +    status = rtems_task_create(
>> > +      Task_name[ index ], Prio[index], RTEMS_MINIMUM_STACK_SIZE,
>> > RTEMS_DEFAULT_MODES,
>> > +      RTEMS_DEFAULT_ATTRIBUTES, &Task_id[ index ]
>> > +    );
>> > +    directive_failed( status, "rtems_task_create loop");
>> > +  }
>> > +
>> > +
>> > +  /* After creating the periods for tasks, start to run them
>> > sequencially. */
>> > +  for ( int index = 1; index <= 2; index++){
>> > +    status = rtems_task_start( Task_id[ index ], Task_1, index);
>> > +    directive_failed( status, "rtems_task_start loop");
>> > +  }
>> > +  status = rtems_task_delete( RTEMS_SELF );
>> > +  directive_failed( status, "rtems_task_delete of RTEMS_SELF" );
>> > +}
>> > +
>> > diff --git a/testsuites/sptests/sprmsched01/sprmsched01.doc
>> > b/testsuites/sptests/sprmsched01/sprmsched01.doc
>> > new file mode 100644
>> > index 0000000..7153af8
>> > --- /dev/null
>> > +++ b/testsuites/sptests/sprmsched01/sprmsched01.doc
>> > @@ -0,0 +1,33 @@
>> > +#
>> > +#   COPYRIGHT (c) 2016 Kuan-Hsun Chen, TU Dortmund University (TUDo).
>> > +#
>> > +#   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.
>> > +#
>> > +
>> > +This file describes the directives and concepts tested by this test
>> > set.
>> > +
>> > +test set name: sprmsched01
>> > +
>> > +directives:
>> > +
>> > +  - rtems_rate_monotonic_report_statistics()
>> > +  - rtems_rate_monotonic_period()
>> > +  - rtems_rate_monotonic_Postponed_num()
>> > +  - _Rate_monotonic_Timeout()
>> > +  - _Rate_monotonic_Renew_deadline()
>> > +  - _Rate_monotonic_Release_postponedjob()
>> > +  - _Rate_monotonic_Block_while_expired()
>> > +
>> > +
>> > +concepts:
>> > +
>> > +  - Verify that watchdog deadline is renewed on time without shift via
>> > +    _Rate_monotonic_Renew_deadline().
>> > +  - Verify that postponed jobs are released with a correct number via
>> > +    _Rate_monotonic_Release_postponedjob().
>> > +  - Verify that rtems_rate_monotonic_report_statistics() reports
>> > correct number
>> > +    of deadline misses.
>> > +  - Verify that rtems_rate_monotonic_period() and
>> > +    _Rate_monotonic_Block_while_expired() are operational.
>> > diff --git a/testsuites/sptests/sprmsched01/sprmsched01.scn
>> > b/testsuites/sptests/sprmsched01/sprmsched01.scn
>> > new file mode 100644
>> > index 0000000..3d3d2d9
>> > --- /dev/null
>> > +++ b/testsuites/sptests/sprmsched01/sprmsched01.scn
>> > @@ -0,0 +1,48 @@
>> > +
>> > +
>> > +*** BEGIN OF TEST Rate Monotonic 01 ***
>> > +
>> > +Ticks per second in your system: 1000
>> > +Job 1 Task 1 starts at tick 13.
>> > +                                        Job 1 Task 1 ends at tick 6021.
>> > +Job 1 Task 2 starts at tick 6022.
>> > +                                        Job 1 Task 2 ends at tick 7024.
>> > +Job 2 Task 2 starts at tick 8022.
>> > +                                        Job 2 Task 2 ends at tick 9023.
>> > +Job 2 Task 1 starts at tick 10013.
>> > +                                        Job 2 Task 1 ends at tick
>> > 16021.
>> > +Job 3 Task 2 starts at tick 16023.
>> > +                                        Job 3 Task 2 ends at tick
>> > 17024.
>> > +Job 4 Task 2 starts at tick 17025.
>> > +                                        Job 4 Task 2 ends at tick
>> > 18026.
>> > +Job 5 Task 2 starts at tick 18026.
>> > +                                        Job 5 Task 2 ends at tick
>> > 19027.
>> > +Job 6 Task 2 starts at tick 19028.
>> > +                                        Job 6 Task 2 ends at tick
>> > 20029.
>> > +Job 7 Task 2 starts at tick 20029.
>> > +                                        Job 7 Task 2 ends at tick
>> > 21031.
>> > +Job 8 Task 2 starts at tick 21031.
>> > +                                        Job 8 Task 2 ends at tick
>> > 22033.
>> > +Job 9 Task 2 starts at tick 22033.
>> > +                                        Job 9 Task 2 ends at tick
>> > 23035.
>> > +Job 10 Task 2 starts at tick 24022.
>> > +                                        Job 10 Task 2 ends at tick
>> > 25023.
>> > +Job 11 Task 2 starts at tick 26022.
>> > +                                        Job 11 Task 2 ends at tick
>> > 27024.
>> > +Job 12 Task 2 starts at tick 28022.
>> > +                                        Job 12 Task 2 ends at tick
>> > 29024.
>> > +Job 13 Task 2 starts at tick 30022.
>> > +                                        Job 13 Task 2 ends at tick
>> > 31023.
>> > +Job 14 Task 2 starts at tick 32022.
>> > +                                        Job 14 Task 2 ends at tick
>> > 33023.
>> > +Job 15 Task 2 starts at tick 34022.
>> > +                                        Job 15 Task 2 ends at tick
>> > 35023.
>> > +Job 16 Task 2 starts at tick 36022.
>> > +                                        Job 16 Task 2 ends at tick
>> > 37023.
>> > +Period information by period
>> > +--- CPU times are in seconds ---
>> > +--- Wall times are in seconds ---
>> > +   ID     OWNER COUNT MISSED          CPU TIME                  WALL
>> > TIME
>> > +                                    MIN/MAX/AVG
>> > MIN/MAX/AVG
>> > +0x42010002 TA2     15      6 1.001686/7.012146/2.404131
>> > 1.001698/13.013378/5.204723
>> > +*** END OF TEST Rate Monotonic 01 ***
>> > diff --git a/testsuites/sptests/sprmsched01/system.h
>> > b/testsuites/sptests/sprmsched01/system.h
>> > new file mode 100644
>> > index 0000000..e4c6ade
>> > --- /dev/null
>> > +++ b/testsuites/sptests/sprmsched01/system.h
>> > @@ -0,0 +1,64 @@
>> > +/**
>> > + * @file sprmsched01/system.h
>> > + *
>> > + * @brief sprmsched01 example header
>> > + */
>> > +
>> > +/*
>> > + *  COPYRIGHT (c) 1989-2007.
>> > + *  On-Line Applications Research Corporation (OAR).
>> > + *
>> > + *  COPYRIGHT (c) 2016 Kuan-Hsun Chen, TU Dortmund University (TUDo).
>> > + *
>> > + *  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.
>> > + */
>> > +
>> > +
>> > +#include <inttypes.h>
>> > +#include <rtems.h>
>> > +
>> > +#include <tmacros.h>
>> > +
>> > +/* function prototypes */
>> > +
>> > +rtems_task Init(
>> > +  rtems_task_argument argument
>> > +);
>> > +
>> > +rtems_task Task_1(
>> > +  rtems_task_argument argument
>> > +);
>> > +
>> > +rtems_task Task_2(
>> > +  rtems_task_argument argument
>> > +);
>> > +
>> > +/*
>> > + *  Keep the names and IDs in global variables so another task can use
>> > them.
>> > + */
>> > +
>> > +extern rtems_id   Task_id[ 2 ];         /* array of task ids */
>> > +extern rtems_name Task_name[ 2 ];       /* array of task names */
>> > +extern uint32_t tick_per_second;        /* time reference */
>> > +extern int testnumber;                  /* stop condition */
>> > +
>> > +/* configuration information */
>> > +
>> > +#include <bsp.h> /* for device driver prototypes */
>> > +
>> > +#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
>> > +#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
>> > +#define CONFIGURE_MICROSECONDS_PER_TICK     1000   // NB: 10 and lower
>> > gives system failure for erc32 simulator
>> > +#define CONFIGURE_MAXIMUM_TASKS             3
>> > +#define CONFIGURE_MAXIMUM_SEMAPHORES        1
>> > +#define CONFIGURE_MAXIMUM_PRIORITY          15
>> > +#define CONFIGURE_EXTRA_TASK_STACKS         (20 *
>> > RTEMS_MINIMUM_STACK_SIZE)
>> > +#define CONFIGURE_MAXIMUM_PERIODS           3
>> > +
>> > +#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
>> > +
>> > +#include <rtems/confdefs.h>
>> > +
>> > +/* end of include file */
>> > diff --git a/testsuites/sptests/sprmsched01/tasks.c
>> > b/testsuites/sptests/sprmsched01/tasks.c
>> > new file mode 100644
>> > index 0000000..8cb06e6
>> > --- /dev/null
>> > +++ b/testsuites/sptests/sprmsched01/tasks.c
>> > @@ -0,0 +1,104 @@
>> > +/**
>> > + * @file sprmsched01/tasks.c
>> > + *
>> > + * @brief A heuristic example to demonstrate how the postponed jobs are
>> > handled.
>> > + *
>> > + * Given two tasks with implicit deadline under fixed-priority
>> > scheudling.
>> > + * Task 1 has (6, 10) and task 2 has (1, 2), where (execution time,
>> > deadline/period).
>> > + * To force deadline misses, we reverse the rate-monotonic priority
>> > assignment
>> > + * and only execute the highest priority task twice.
>> > + * In the original implementation in v4.11, no matter how many periods
>> > are
>> > + * expired, RMS manager only releases a job with a shifted deadline
>> > assignment
>> > + * in the watchdog.
>> > + *
>> > + */
>> > +
>> > +/*
>> > + *  COPYRIGHT (c) 2016 Kuan-Hsun Chen, TU Dortmund University (TUDo).
>> > + *
>> > + *  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.
>> > + */
>> > +
>> > +#ifdef HAVE_CONFIG_H
>> > +#include "config.h"
>> > +#endif
>> > +
>> > +#include "system.h"
>> > +
>> > +/* CPU usage and Rate monotonic manger statistics */
>> > +#include "rtems/cpuuse.h"
>> > +#include "rtems/counter.h"
>> > +
>> > +/* Periods for the various tasks [ticks] */
>> > +uint32_t Periods[3] = {0, 10000, 2000};
>> > +uint32_t Iterations[3] = {0, 6000, 1000};
>> > +uint32_t tsk_counter[3] = {0, 0, 0};
>> > +
>> > +/**
>> > + * @brief Task 1 body
>> > + */
>> > +rtems_task Task_1(
>> > +  rtems_task_argument argument
>> > +)
>> > +{
>> > +  rtems_status_code status;
>> > +  rtems_id          RM_period;
>> > +  rtems_id          selfid=rtems_task_self();
>> > +  int               start, end, flag=0;
>> > +  rtems_counter_ticks t0;
>> > +  t0 = rtems_counter_nanoseconds_to_ticks(1000000); //1ms ticks counter
>> > +  /*create period*/
>> > +  status = rtems_rate_monotonic_create( argument, &RM_period );
>> > +  directive_failed( status, "rtems_rate_monotonic_create" );
>> > +
>> > +  switch ( argument ) {
>> > +    case 1:
>> > +    case 2:
>> > +      while ( FOREVER ) {
>> > +        status = rtems_rate_monotonic_period( RM_period,
>> > Periods[argument]);
>> > +        //directive_failed( status, "rtems_rate_monotonic_period" );
>> > let TIMEOUT pass
>> > +        if(argument == 2 && flag == 0 && status == RTEMS_TIMEOUT){
>> > +          flag = 1;
>> > +          printf("RTEMS_TIMEOUT\n");
>> > +        }else if(flag == 1 && status == RTEMS_SUCCESSFUL){
>> > +          flag = 0;
>> > +          printf("RTEMS_SUCCESSFUL\n");
>> > +        }
>> > +
>> > +        start = rtems_clock_get_ticks_since_boot();
>> > +        if (argument == 2)
>> > +          printf("Job %d Task %d starts at tick %d.\n",
>> > tsk_counter[argument]+1, argument, start);
>> > +        else
>> > +          printf("Task %d starts at tick %d.\n", argument, start);
>> > +        for(int i=0; i<Iterations[argument]; i++){
>> > +          rtems_counter_delay_ticks(t0);
>> > +        }
>> > +        end = rtems_clock_get_ticks_since_boot();
>> > +        printf("                                       Job %d Task %d
>> > ends at tick %d.\n", tsk_counter[argument]+1, argument, end);
>> > +        if( argument == 2 ){
>> > +          if(tsk_counter[ argument ] == testnumber){
>> > +            //rtems_rate_monotonic_report_statistics();
>> > +            TEST_END();
>> > +            status = rtems_rate_monotonic_delete(RM_period);
>> > +            directive_failed( status, "rtems_rate_monotonic_delete" );
>> > +            rtems_test_exit(0);
>> > +          }
>> > +        }
>> > +
>> > +        tsk_counter[ argument ]+=1;
>> > +        if ( argument == 1 ){
>> > +          if( tsk_counter[ argument ] == 2 ){
>> > +                                   status =
>> > rtems_rate_monotonic_delete(RM_period);
>> > +            directive_failed( status, "rtems_rate_monotonic_delete" );
>> > +            status = rtems_task_delete(selfid);
>> > +            directive_failed( status, "rtems_task_delete" );
>> > +          }
>> > +        }
>> > +      }
>> > +      break;
>> > +
>> > +  }
>> > +}
>> > +
>> > --
>> > 1.9.1
>> >
>> > _______________________________________________
>> > devel mailing list
>> > devel at rtems.org
>> > http://lists.rtems.org/mailman/listinfo/devel
>
>



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