Experimental Physics and
Industrial Control System

Eric Norum <[email protected]> · Sun, 5 Jun 2011 19:41:28 -0700

On Jun 5, 2011, at 7:34 PM, <[email protected]> wrote:

> Hi, all;
> 
> I have a long series of bi record to process, which have an access to
> a hardware register, say, every 5 seconds.
> 
> The number of records reaches a few to several thousands. In this case,
> which one of the following two options is better or no essential
> difference from performance point of view?
> 
> 1)Chains all the records by using FLNK and process the first one every
> 5 second

A FLNK chain of several thousand records is likely to cause stack overflow on RTEMS or vxWorks and perhaps even on Linux/OS X.

> 
> 2)Put them all into the “5 second” scan list
> 
> I recognize that measuring it is no big deal, but I´d like to ask the
> experts first expecting one of you to point out something else to
> consider, which I may be overlooking, other than performance issue.
> 
> Thanks a lot in advance.
> 
> J. Odagiri, High Energy Research Organization (KEK)
> 
> 
> 

-- 
Eric Norum
[email protected]

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System