Messages in this thread | | | Date | Sat, 20 Jan 2001 17:10:45 -0700 | From | yodaiken@fsmlabs ... | Subject | Re: [linux-audio-dev] low-latency scheduling patch for 2.4.0 |
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On Fri, Jan 12, 2001 at 07:45:43PM -0700, Jay Ts wrote: > Andrew Morton wrote: > > > > Jay Ts wrote: > > > > > > Now about the only thing left is to get it included > > > in the standard kernel. Do you think Linus Torvalds is more likely > > > to accept these patches than Ingo's? I sure hope this one works out. > > > > We (or "he") need to decide up-front that Linux is to become > > a low latency kernel. Then we need to decide the best way of > > doing that. > > > > Making the kernel internally preemptive is probably the best way of > > doing this. But it's a *big* task > > Ouch. Yes, I agree that the ideal path is for Linus and the other > kernel developers and ... well, just about everyone ... is to create > a long-range strategy and 'roadmap' that includes support for low-latency. > > And making the kernel preemptive might be the best way to do that > (and I'm saying "might"...).
Keep in mind that Ken Thompson & Dennis Ritchie did not decide on a non-preemptive strategy for UNIX because they were unaware of such methods or because they were stupid. And when Rob Pike redesigned a new "unix" Plan9 note there is no-preemptive kernel, and the core Linux designers have rejected preemptive kernels too. Now it is certainly possible that things have change and/or all these folks are just plain wrong. But I wouldn't bet too much on it.
-- --------------------------------------------------------- Victor Yodaiken Finite State Machine Labs: The RTLinux Company. www.fsmlabs.com www.rtlinux.com
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