[PD] firm delay scheduling

Jonathan Wilkes jancsika at yahoo.com
Wed Oct 31 00:28:36 CET 2012


----- Original Message -----

> From: Cyrille Henry <ch at chnry.net>
> To: pd-list at iem.at
> Cc: 
> Sent: Tuesday, October 30, 2012 1:52 PM
> Subject: Re: [PD] firm delay scheduling
> 
> hello,
> 
> if your problem is detecting when cpu is over 100% so that delay is not acurate, 
> then the best solution is some kind of external watchdog.
> 
> just send a message every 10 ms to an other software, if this external software 
> did not receive anything during the last 20ms, then there is a cpu problem on 
> the pd side...
> 
> 
> the external software can be an other pd, a shell script (using pdreceive, or 
> anything else.

How is the second pd going to complete its computations on time when the CPU
is over 100%?

> 
> cheers
> c
> 
> Le 30/10/2012 18:13, Jean-Marie Adrien a écrit :
>>  Hello
>>  I'm trying to launch security procedures in case of trouble, that will 
> respond in less than 250 msec.
>>  The fundamental question is :
>> 
>>  Is there an object to schedule an event in the future with firm absolute 
> delay ?
>> 
>>  {realtime} measures time AFTER the problem (no scheduling)
>>  {del} schedules things but the delay is kind of elastic, depending on the 
> CPU load.
>> 
>>  thanks
>>  JM
>> 
>> 
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