On 16 Feb 2014, at 5:15 , Blaine Garst <[email protected]> wrote:
> My intuition is that we have to turn our thinking upside down. There are no
> Threads. Have a few stacks for I/O interrupts in the kernel, do all stack
> scheduling in user space, and let IPC be as pure as trap, swap mmu, jump. If
> this model has been explored I’ll be fascinated to learn where it ran aground.
Have a look at scheduler activations [1], and their use in K42 [2].
Gernot
[1] Thomas E. Anderson, Brian N. Bershad, Edward D. Lazoswka and Henry M. Levy.
Scheduler Activations: Effective Kernel Support for the User-Level Management
of Threads, TOCS (10) 1992
[2] Orran Krieger, Marc Auslander, Bryan Rosenburg, Robert W. Wisniewski, Jimi
Xenidis, Dilma Da Silva, Michal Ostrowski, Jonathan Appavoo, Maria Butrico,
Mark Mergen, Amos Waterland and Volkmar Uhlig. K42: Building a Complete
Operating System, EuroSys 2006
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