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Preemptible Linux Kernel: Interviews and Info

Posted by michael on from the patch-and-patch-again dept.

An anonymous submitter sends: "MontaVista and Robert Love are developing a patch for the Linux kernel to make it fully preemptible. Lots of users are involved, and tests show huge reductions in latency. Robert's kernel patches are here. Finally, an interview with Robert, on preemption and more."

1 of 238 comments (clear)

  1. Re:needed badly by chabotc · · Score: 5, Insightful

    Actualy 9 out of 10 cases when that happens, and the hardware is locked up, it will have locked up the PCI bridge as well (they have to to communicatie), so this wont do anything.

    Also if the systeem feels locked up, and its not a hardware lock, there's a good chance its the tty/console subsystem thats killed.

    only in a few cases, where a run-away process would deal out so much of a beating to the system, then the better multithreading will help in the way you described.

    (ps, telnetting in is always a good work around for a system with a dead keyboard/console :P)