Messages in this thread | | | Date | Sat, 10 Jul 1999 12:15:46 -0400 (EDT) | From | Alexander Viro <> | Subject | Re: AMIGA will use Linux, but Linux has several "multimedia-deficiencies" |
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On Sat, 10 Jul 1999, Benno Senoner wrote:
> > Which doesn't mix well with timesharing. > > But IRIX seems to be monolithic and handles realtime content quite well.
Erm... First of all, RT != microkernel. And IIRC IRIX runs on boxen with very smart periphs.
[snip] > there seems to be some discrepancy about what is better uKernel or monolithic, > certainly it's easier to do RT stuff on a uKernel because all drivers run as > processes, but I think it's not impossible to archieve similar results on > monolithic kernels. > Yes, you have to deal with spinlocking and related stuff, but you get the > added bonus of less syscall overhead, which is in some cases 3 to 10 times > bigger on uKernels. ( read on the L4 for Linux papers). > > Could maybe one solution to port all the Linux device drives to the L4 for > Linux uKernel ?
Huh? What does *that* have to their situation? They control the hardware, so... Why would drivers for everything and sundry be a problem?
> Actually on L4 for Linux the kernel runs as a single big server, and therefore > these big scheduling latency problems would not go away, until you port > every device driver to L4 IMHO. (correct me if I'm wrong). > > The L4 folks benchmarked L4 for Linux and this uKernel runs only > about 6-7% slower than a standard Linux kernel which is not so much. > I would be happy to sacrifice 6-7% of performance to have a kernel > with good RT features.
Than use it. If you already have the thing - what's the problem?
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