Messages in this thread | | | Date | Mon, 20 Mar 2000 20:47:36 +0100 (CET) | From | Marco Colombo <> | Subject | Re: Avoiding OOM on overcommit...? |
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On Mon, 20 Mar 2000, Jesse Pollard wrote:
> James Sutherland <jas88@cam.ac.uk> > > >It all depends on the application. I have seen embeded systems that > > >could cause a loss of life on failure. I have worked on some that > > >almost cost the job of the manager who sent it out. > > > > Definitely not the target market of the standard Linux kernel. While I > > like Linux, I don't want to find myself on a penguin-powered life > > support system. Equally, I don't want to run a mission-critical > > embedded OS on my desktop PC. > > Which OS is more reliable a) Linux b) NT ? > which OS is used to control a cruser with missles?
One that is not strickly an OS. The whole purpose of a missile (a cruiser, at least) is not "running", is *crashing* (upon the target, hopefully). Yes, it sounds like that NT is the choise, here, after all! B-)
> Which would you prefer: life support under NT, or life support under Linux?
Definitely none of them. Don't run a Web server on my life-support system, please. Nor i want it to be "multiuser". And please, don't make it multitasking, it has only *one* real important task to perform, thanks...
Besides that, i see no reasons for a missile or a life support system to have a MMU in the beginning. No paging, no swapping, no overcommitting...
> > (Perhaps something like RTLinux could address these problems?) > > In some cases yes. In others it is not appropriate. Real-time, when measured > in microseconds, is approprate for RTLinux. Where Real-time means "within > an hour of the data arrival" it is not. > ------------------------------------------------------------------------- > Jesse I Pollard, II > Email: pollard@navo.hpc.mil > > Any opinions expressed are solely my own.
.TM. -- ____/ ____/ / / / / Marco Colombo ___/ ___ / / Technical Manager / / / ESI s.r.l. _____/ _____/ _/ Colombo@ESI.it
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