[rtl] rtl scheduler latency.

[frasc <roussel@quimper.eng.efi.com>]

Hi folks,

We are currently doing some experiment with RTL.

Basically what we have been trying to measure so far is the task
scheduler latency:

Real Time Clock ---> IT wake_up ---> RT Task
                        |              |
                        V              V
                      Toggle Pin2    Toggle Pin3
                      parallel port  parallel port

Using a scope we measure an average 22 micro-seconds between IT and Task.
[ best case 19.6 usecs, worst case 25 usecs ]

Did you guys ever been able to get faster response time ?

Thanks in advance for any advice!

-- 
FrÈdÈric.R.R.Roussel
Frederic.Roussel@efi.com

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