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SubjectRe: Problem with the O(1) scheduler in 2.4.19
On Thu, 12 Sep 2002, Tobias Ringstrom wrote:

> 3. More than 90% of all tasks in a system are classified as interactive at
> any given time (since they are sleeping). For example all cron jobs
> are classified as interactive, which sounds really strange. IMHO, it's
> a good example of a non-interactive background job. (I'll run my crond
> at nice 19 for now.)
> I'm curious, why are you using the process average sleep time to
> determine interactiveness and not the presense of prematurely abandoned
> timeslices?

I'll ask that, too. Not because I doubt you have a good reason, but
because it doesn't jump out at me. I would like the CPU to go to the
process most likely to start an i/o and block, so the CPU hog can run
while the i/o takes place, because that seems to get the highest overlap
of CPU and i/o. I assume the current scheduler that as one of the goal,
clearly not the only one.

A few words of clarification would be educational.

bill davidsen <>
CTO, TMR Associates, Inc
Doing interesting things with little computers since 1979.

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