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https://stackoverflow.com/questions/20143143/how-linux-scheduler-schedules-processes-on-multi-core-processors
Multi-core processors exploits thread level parallelism, it means that multiple threads runs in parallel. Suppose, a process has only one thread then, do the other cores remain idle during the execution of this process? In linux system, scheduler consider processes and threads both as a task.
https://www.ibm.com/support/knowledgecenter/en/linuxonibm/com.ibm.linux.z.ldva/ldva_c_CPU_scheduling.html
Higher level scheduling domains group physically adjacent scheduling domains, such as the chips on the same book. The Linux scheduler is a multi-queue scheduler, which means that for each of the logical host CPUs, there is a run queue of processes waiting for this CPU. Each virtual CPU waits for its execution in one of these run queues.
https://github.com/raspberrypi/linux/issues/1221
Dec 08, 2015 · Multi-core scheduler support improves the CPU scheduler's decision making when dealing with multi-core CPU chips at a cost of slightly increased overhead in some places. If unsure say N here. Someone sees a 10% reduction in performance here:
https://elinux.org/images/d/dc/Elc2013_Na.pdf
Multicore processors are becoming an integral part of embedded devices In Linux, CFS is the best scheduler until now - CFS performs load balancing depending on task’s weight - The weight-based algorithms fails to achieve global fairness in practical DWRR can be new trial to improve the multicore in terms of fairness
https://blog.acolyer.org/2016/04/26/the-linux-scheduler-a-decade-of-wasted-cores/
Apr 26, 2016 · The Linux Scheduler: a Decade of Wasted Cores - Lozi et al. 2016 This is the first in a series of papers from EuroSys 2016. There are three strands here: first of all, there's some great background into how scheduling works in the Linux kernel; secondly, there's a story about Software Aging and how changing…
http://viewer.media.bitpipe.com/1090331926_980/1182181756_632/a3.pdf
- indicates that the physical package is both Hyper-threading and multi-core capable 3. 2.6 Linux Process Scheduler The most significant change in 2.6 Linux Kernel which improved scalability in multi processor system was in the kernel process scheduler. The design of Linux 2.6 scheduler …
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