[Xenomai-core] rt_task_sleep doesn't work with round robin scheduling

[Xenomai-core] rt_task_sleep doesn't work with round robin scheduling

[axel axel]

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Hi,

i try to use rt_task_sleep( 10000000 ) in a user-space task under
round-robin scheduling but doesnt' work.

It returns the value -11.

Any idea ?

Thanks a lot

Roberto Bielli

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Re: [Xenomai-core] rt_task_sleep doesn't work with round robin scheduling

[Gilles Chanteperdrix]

On Fri, Feb 1, 2008 at 10:08 AM, axel axel <softaxel@domain.hid> wrote:
> Hi,
>
> i try to use rt_task_sleep( 10000000 ) in a user-space task under
> round-robin scheduling but doesnt' work.
>
> It returns the value -11.
>
> Any idea ?

Do you observe the same behaviour with xenomai trunk ?

-- 
                                               Gilles Chanteperdrix

Re: [Xenomai-core] rt_task_sleep doesn't work with round robin scheduling

[Gilles Chanteperdrix]

On Fri, Feb 1, 2008 at 10:08 AM, axel axel <softaxel@domain.hid> wrote:
> Hi,
>
> i try to use rt_task_sleep( 10000000 ) in a user-space task under
> round-robin scheduling but doesnt' work.

Do not forget that the number passed to rt_task_sleep is a count of
ticks (and documented as such), so, if you want to sleep for 10ms, you
should call:
rt_task_sleep(rt_timer_ns2ticks(10000000))

>
> It returns the value -11.
>
> Any idea ?
>
> Thanks a lot
>
> Roberto Bielli
>
> _______________________________________________
>  Xenomai-core mailing list
>  Xenomai-core@domain.hid
>  https://mail.gna.org/listinfo/xenomai-core
>
>



-- 
                                               Gilles Chanteperdrix

Re: [Xenomai-core] rt_task_sleep doesn't work with round robin scheduling

[axel axel]

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2008/2/1, Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>:
>
> On Fri, Feb 1, 2008 at 10:08 AM, axel axel <softaxel@domain.hid> wrote:
> > Hi,
> >
> > i try to use rt_task_sleep( 10000000 ) in a user-space task under
> > round-robin scheduling but doesnt' work.
>
Do not forget that the number passed to rt_task_sleep is a count of
> ticks (and documented as such), so, if you want to sleep for 10ms, you
> should call:
> rt_task_sleep(rt_timer_ns2ticks(10000000))


i try also this but nothing is changed.

this is the code of task:

void taskMav1 (void *cookie)
{
    int err, i;

    float a, b, c;
    //const float res2 = 14.6;
    //const float res3 = 22.5;
    //

    if( rt_task_set_mode( T_LOCK, T_RRB,0 ) != 0 )
    {
        printf( "Error rt_task_set_mode on task2samePrio\n" );
        fflush( stdout );
        return;
    }



    if( rt_task_slice( NULL, 1 ) != 0 )
    {
        printf( "Error rt_task_slice on task1samePrio\n" );
        fflush( stdout );
        return;
    }

    rt_sem_p( &rtSemStartAll, TM_INFINITE );
    rt_sem_v( &rtSemStartAll );


     for (;;) {

//      for( i = 0; i < 100; i++ )
//      {
//          a = 2.1;
//          b = a * 2.0;
//          c = b + 3.1;
//
//          if ( res1local != c )
//          {
//              /* Process interrupt. */
//              //  P9 on
//              *mapp_dout = *mapp_dout | 0x00000004;
//
//              //  P9 off
//              *mapp_dout = *mapp_dout & 0xFFFFFFFB;
//              rt_task_sleep( 100000000 );
//              continue;
//          }
//
//      }

        //rt_task_sleep( 100000000 );
         *mapp_dout = *mapp_dout | 0x00000004;
         err = rt_task_sleep(  rt_timer_ns2ticks(10000000) );
         if( err != 0 )
         {
             printf( "Error rt_task_sleep on taskMav1 %d\n", err );
             fflush( stdout );
             return;
         }
         *mapp_dout = *mapp_dout & 0xFFFFFFFB;
     }
 }

and this is the code of caller:

void testMaverickCrunch( void )
{
     int err;

     err = rt_sem_create( &rtSemStartAll, "rtSemStartAll", 0, S_FIFO );

     if( err != 0 )
     {
        printf( "Error on rt_sem_create rtSemStartAll \n" );
        fflush( stdout );

        return;
     }

     err = rt_timer_set_mode( 5000000 );
     if( err != 0 )
     {
        printf( "Error on rt_timer_set_mode \n" );
        fflush( stdout );

        return;
     }

     err = rt_task_spawn( &rtTaskMav1, "rtTaskMav1", 0, 1, 0, taskMav1,NULL
);
     if( err != 0 )
     {
        printf( "Error on rtTaskMav1\n" );
        fflush( stdout );

        rt_task_delete(&rtTaskMav1);

        return;
     }

     rt_sem_v( &rtSemStartAll );

}

>
> > It returns the value -11.
> >
> > Any idea ?
> >
> > Thanks a lot
> >
> > Roberto Bielli
> >
> > _______________________________________________
> >  Xenomai-core mailing list
> >  Xenomai-core@domain.hid
> >  https://mail.gna.org/listinfo/xenomai-core
> >
> >
>
>
>
> --
>                                                Gilles Chanteperdrix
>

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Re: [Xenomai-core] rt_task_sleep doesn't work with round robin scheduling

[Gilles Chanteperdrix]

On Fri, Feb 1, 2008 at 10:42 AM, axel axel <softaxel@domain.hid> wrote:
>
>
> 2008/2/1, Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>:
> > On Fri, Feb 1, 2008 at 10:08 AM, axel axel <softaxel@domain.hid> wrote:
> > > Hi,
> > >
> > > i try to use rt_task_sleep( 10000000 ) in a user-space task under
> > > round-robin scheduling but doesnt' work.
> >
> > Do not forget that the number passed to rt_task_sleep is a count of
> > ticks (and documented as such), so, if you want to sleep for 10ms, you
> > should call:
> > rt_task_sleep(rt_timer_ns2ticks(10000000))
>
> i try also this but nothing is changed.

Of course, but about the other question: do you observe the same
behaviour with xenomai trunk ?

-- 
                                               Gilles Chanteperdrix

Re: [Xenomai-core] rt_task_sleep doesn't work with round robin scheduling

[Gilles Chanteperdrix]

On Fri, Feb 1, 2008 at 11:02 AM, Soft Axel <softaxel@domain.hid> wrote:
>
>  Gilles Chanteperdrix ha scritto:
>
>  On Fri, Feb 1, 2008 at 10:42 AM, axel axel <softaxel@domain.hid> wrote:
>
>
>  2008/2/1, Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>:
>
>
>  On Fri, Feb 1, 2008 at 10:08 AM, axel axel <softaxel@domain.hid> wrote:
>
>
>  Hi,
>
> i try to use rt_task_sleep( 10000000 ) in a user-space task under
> round-robin scheduling but doesnt' work.
>
>  Do not forget that the number passed to rt_task_sleep is a count of
> ticks (and documented as such), so, if you want to sleep for 10ms, you
> should call:
> rt_task_sleep(rt_timer_ns2ticks(10000000))
>
>  i try also this but nothing is changed.
>
>  Of course, but about the other question: do you observe the same
> behaviour with xenomai trunk ?
>
>
>  What do you mean  xenomai trunk ?
>
>  this is my actual configuration:
>   - xenomai-2.4-rc5
>   - kernel 2.6.20.4 arm cirrus ep9315 patched
>
>  have i try with xenomai 2.4.1 ?

No, please try Xenomai trunk:
https://gna.org/svn/?group=xenomai

-- 
                                               Gilles Chanteperdrix

Re: [Xenomai-core] rt_task_sleep doesn't work with round robin scheduling

[Soft Axel]

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Gilles Chanteperdrix ha scritto:
> On Fri, Feb 1, 2008 at 10:42 AM, axel axel <softaxel@domain.hid> wrote:
>   
>> 2008/2/1, Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>:
>>     
>>> On Fri, Feb 1, 2008 at 10:08 AM, axel axel <softaxel@domain.hid> wrote:
>>>       
>>>> Hi,
>>>>
>>>> i try to use rt_task_sleep( 10000000 ) in a user-space task under
>>>> round-robin scheduling but doesnt' work.
>>>>         
>>> Do not forget that the number passed to rt_task_sleep is a count of
>>> ticks (and documented as such), so, if you want to sleep for 10ms, you
>>> should call:
>>> rt_task_sleep(rt_timer_ns2ticks(10000000))
>>>       
>> i try also this but nothing is changed.
>>     
>
> Of course, but about the other question: do you observe the same
> behaviour with xenomai trunk ?
>
>   
What do you mean  xenomai trunk ?

this is my actual configuration:
 - xenomai-2.4-rc5
 - kernel 2.6.20.4 arm cirrus ep9315 patched

have i try with xenomai 2.4.1 ?

thanks

Roberto Bielli

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Re: [Xenomai-core] rt_task_sleep doesn't work with round robin scheduling

[Soft Axel]

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Gilles Chanteperdrix ha scritto:
> On Fri, Feb 1, 2008 at 11:02 AM, Soft Axel <softaxel@domain.hid> wrote:
>   
>>  Gilles Chanteperdrix ha scritto:
>>
>>  On Fri, Feb 1, 2008 at 10:42 AM, axel axel <softaxel@domain.hid> wrote:
>>
>>
>>  2008/2/1, Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>:
>>
>>
>>  On Fri, Feb 1, 2008 at 10:08 AM, axel axel <softaxel@domain.hid> wrote:
>>
>>
>>  Hi,
>>
>> i try to use rt_task_sleep( 10000000 ) in a user-space task under
>> round-robin scheduling but doesnt' work.
>>
>>  Do not forget that the number passed to rt_task_sleep is a count of
>> ticks (and documented as such), so, if you want to sleep for 10ms, you
>> should call:
>> rt_task_sleep(rt_timer_ns2ticks(10000000))
>>
>>  i try also this but nothing is changed.
>>
>>  Of course, but about the other question: do you observe the same
>> behaviour with xenomai trunk ?
>>
>>
>>  What do you mean  xenomai trunk ?
>>
>>  this is my actual configuration:
>>   - xenomai-2.4-rc5
>>   - kernel 2.6.20.4 arm cirrus ep9315 patched
>>
>>  have i try with xenomai 2.4.1 ?
>>     
>
> No, please try Xenomai trunk:
> https://gna.org/svn/?group=xenomai
>
>   
I try with the xenomai trunk and this is OK.

But i have one question: the xenomai trunk is stable or every change is 
uploaded ?
Because i can't upgrade my board very frequently and i want to put a 
stable version.

thanks a lot

Roberto

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Re: [Xenomai-core] rt_task_sleep doesn't work with round robin scheduling

[Soft Axel]

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Gilles Chanteperdrix ha scritto:
> On Fri, Feb 1, 2008 at 11:02 AM, Soft Axel <softaxel@domain.hid> wrote:
>   
>>  Gilles Chanteperdrix ha scritto:
>>
>>  On Fri, Feb 1, 2008 at 10:42 AM, axel axel <softaxel@domain.hid> wrote:
>>
>>
>>  2008/2/1, Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>:
>>
>>
>>  On Fri, Feb 1, 2008 at 10:08 AM, axel axel <softaxel@domain.hid> wrote:
>>
>>
>>  Hi,
>>
>> i try to use rt_task_sleep( 10000000 ) in a user-space task under
>> round-robin scheduling but doesnt' work.
>>
>>  Do not forget that the number passed to rt_task_sleep is a count of
>> ticks (and documented as such), so, if you want to sleep for 10ms, you
>> should call:
>> rt_task_sleep(rt_timer_ns2ticks(10000000))
>>
>>  i try also this but nothing is changed.
>>
>>  Of course, but about the other question: do you observe the same
>> behaviour with xenomai trunk ?
>>
>>
>>  What do you mean  xenomai trunk ?
>>
>>  this is my actual configuration:
>>   - xenomai-2.4-rc5
>>   - kernel 2.6.20.4 arm cirrus ep9315 patched
>>
>>  have i try with xenomai 2.4.1 ?
>>     
>
> No, please try Xenomai trunk:
> https://gna.org/svn/?group=xenomai
>
>   

Yes, it works.

But i have one question.
The main trunk is stable or every change is uploaded ?

For me it's very important because i can't upgrade the board very 
frequently.

Roberto



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Re: [Xenomai-core] rt_task_sleep doesn't work with round robin scheduling

[Gilles Chanteperdrix]

On Mon, Feb 4, 2008 at 12:50 PM, Soft Axel <softaxel@domain.hid> wrote:
>
>  Gilles Chanteperdrix ha scritto:
>  On Fri, Feb 1, 2008 at 11:02 AM, Soft Axel <softaxel@domain.hid> wrote:
>
>
>  Gilles Chanteperdrix ha scritto:
>
>  On Fri, Feb 1, 2008 at 10:42 AM, axel axel <softaxel@domain.hid> wrote:
>
>
>  2008/2/1, Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>:
>
>
>  On Fri, Feb 1, 2008 at 10:08 AM, axel axel <softaxel@domain.hid> wrote:
>
>
>  Hi,
>
> i try to use rt_task_sleep( 10000000 ) in a user-space task under
> round-robin scheduling but doesnt' work.
>
>  Do not forget that the number passed to rt_task_sleep is a count of
> ticks (and documented as such), so, if you want to sleep for 10ms, you
> should call:
> rt_task_sleep(rt_timer_ns2ticks(10000000))
>
>  i try also this but nothing is changed.
>
>  Of course, but about the other question: do you observe the same
> behaviour with xenomai trunk ?
>
>
>  What do you mean xenomai trunk ?
>
>  this is my actual configuration:
>  - xenomai-2.4-rc5
>  - kernel 2.6.20.4 arm cirrus ep9315 patched
>
>  have i try with xenomai 2.4.1 ?
>
>
>
> No, please try Xenomai trunk:
> https://gna.org/svn/?group=xenomai
>
>
>  I try with the xenomai trunk and this is OK.
>
>  But i have one question: the xenomai trunk is stable or every change is
> uploaded ?
>  Because i can't upgrade my board very frequently and i want to put a stable
> version.

There was a commit in trunk which looked like it could solve your
issue. But the same commit appears in the v2.4.x branch, and so will
be in the next v2.4.x release.

-- 
                                               Gilles Chanteperdrix