[PATCH] sp13: Document message buffer usage and adjust configuration

[Joel Sherrill]

On 4/15/2015 2:45 PM, Gedare Bloom wrote:
> On Wed, Apr 15, 2015 at 3:41 PM, Joel Sherrill
> <joel.sherrill at oarcorp.com> wrote:
>> ---
>>  testsuites/sptests/sp13/system.h | 23 +++++++++++++++++++----
>>  1 file changed, 19 insertions(+), 4 deletions(-)
>>
>> diff --git a/testsuites/sptests/sp13/system.h b/testsuites/sptests/sp13/system.h
>> index 3b170bf..8e5ffbb 100644
>> --- a/testsuites/sptests/sp13/system.h
>> +++ b/testsuites/sptests/sp13/system.h
>> @@ -66,13 +66,28 @@ TEST_EXTERN rtems_name Queue_name[ 4 ];      /* array of queue names */
>>  #define CONFIGURE_RTEMS_INIT_TASKS_TABLE
>>
>>  /*
>> - *  First three created in init.c, last created in task1.c.
>> + *  Created in init.c:
>> + *    Q1 - CONFIGURE_MESSAGE_BUFFERS_FOR_QUEUE( 100, MESSAGE_SIZE ) (1600)
>> + *    Q2 - CONFIGURE_MESSAGE_BUFFERS_FOR_QUEUE( 10, MESSAGE_SIZE )   (160)
>> + *    Q3 - CONFIGURE_MESSAGE_BUFFERS_FOR_QUEUE( 100, MESSAGE_SIZE ) (1600)
>> + *
>> + *  Q1 and Q2 deleted in task1.c
>> + *
>> + *  Q1 recreated in task1.c
>> + *    Q1 - CONFIGURE_MESSAGE_BUFFERS_FOR_QUEUE( 100, 20 )           (2000)
>> + *
>> + *  Q1 deleted again in task1.c.
>> + *  Q1 repeatedly created and deleted for 2 messages of 1-1030 bytes
>> + *  in length
>> + *    Q1 - CONFIGURE_MESSAGE_BUFFERS_FOR_QUEUE( 1030, 2 )           (2000)
>> + *
>> + *  Thus the peak message memory needed is technically only:
>> + *      Q3 + third instance of Q1 at peak of two 1030 byte messages.
>> + *
>>   */
>>  #define CONFIGURE_MESSAGE_BUFFER_MEMORY \
>>     CONFIGURE_MESSAGE_BUFFERS_FOR_QUEUE( 100, MESSAGE_SIZE ) + \
>> -   CONFIGURE_MESSAGE_BUFFERS_FOR_QUEUE( 10, MESSAGE_SIZE ) + \
>> -   CONFIGURE_MESSAGE_BUFFERS_FOR_QUEUE( 100, MESSAGE_SIZE ) + \
>> -   CONFIGURE_MESSAGE_BUFFERS_FOR_QUEUE( 100, 20 )
>> +   CONFIGURE_MESSAGE_BUFFERS_FOR_QUEUE( 1030, 2 )
> Should be ( 2, 1030 )
Yep. Good catch. Is the comment clear?
>>  #define CONFIGURE_EXTRA_TASK_STACKS         (3 * RTEMS_MINIMUM_STACK_SIZE)
>>
>> --
>> 1.9.3
>>
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>> http://lists.rtems.org/mailman/listinfo/devel

-- 
Joel Sherrill, Ph.D.             Director of Research & Development
joel.sherrill at OARcorp.com        On-Line Applications Research
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