Messages in this thread | | | Subject | Re: [RFD] sched/deadline: Support single CPU affinity | From | Tommaso Cucinotta <> | Date | Thu, 10 Nov 2016 12:03:47 +0100 |
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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
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