> I believe the hostmot2 ethernet drivers only work (or at least have only been > tested) with PREEMPT_RT. > > Alec Ari
PREEMPT_RT work but it is not possible to put the limit then it come to period of how often real time tasks could be executed. Without proper handling of interrupt every now and then there will be a delay by the time it take to execute the interrupt. I also expect sometimes several will happen at once and even though it is rare with a machine running several hours a day it happens sometimes. I run software on microcontrollers with the Cortex-* CPU and sometimes use the nested interrupt controller as hardware scheduler and get in all essense perfect real time scheduling. Without proper handling of priorities for interrupts it is only possible to use a rather small percentage of available clock cycles for real time tasks since delay caused by interrupts must be added to real time tasks execution time. Nicklas Karlsson ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
