Re: [RFC][PATCH] Make MAX_RT_PRIO and MAX_USER_RT_PRIO configurable

From: Steven Rostedt
Date: Thu Jul 28 2005 - 06:56:17 EST

On Thu, 2005-07-28 at 09:22 +0200, Ingo Molnar wrote:

> nitpicking: i guess the answer also depends on what the precise
> requirement is. If the requirement is 'run for 4 seconds every 10
> seconds, uninterrupted, else the power plant melts down', i'd sure not
> make the washing machine process the higher priority one ;-)
> (also, i'd give the power plant process higher priority even if the
> requirement is not as strict, just from a risk POV: what if the washing
> machine control program is buggy and got into an infinite loop
> somewhere.)

Doug also said that you're an idiot if you run a washing machine from
the same computer you run a nuclear power plant from :-)

The point that he was making though is that if you want a system that
runs without flaws, you don't always prioritize the same way the real
world would prioritize. You need to do it with math.

-- Steve

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