Re: [RFD] sched/deadline: Support single CPU affinity

[Tommaso Cucinotta]

On 10/11/2016 10:06, luca abeni wrote:
> is equivalent to the "least laxity first" (LLF) algorithm.
> Giving precedence to tasks with 0 laxity is a technique that is often
> used to improve the schedulability on multi-processor systems.

EDZL (EDF / Zero Laxity first), right? AFAICR, there's quite a lot of
analysis on EDZL for multi-cores... eg, Insik Shin et al....

  http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=6374195

But, before going the EDZL way, isn't it worthwhile to consider
just splitting tasks among 2 cpus

  https://people.mpi-sws.org/~bbb/papers/pdf/rtss16b.pdf

? ... we're working at RETIS on simpler ways to make the AC for
these split tasks cases (cc-ing Alessandro) that doesn't need
demand-bound complex analysis...

My2c,

	T.
--
Tommaso Cucinotta, Computer Engineering PhD
Associate Professor at the Real-Time Systems Laboratory (ReTiS)
Scuola Superiore Sant'Anna, Pisa, Italy
http://retis.sssup.it/people/tommaso