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SubjectRe: elevator algorithm bug in ll_rw_blk.c
According to Alan Cox:
> Chip:
> > But that's a *one-way* elevator. Ideal elevators are two-way, aren't they?
>
> If you go for the shortest movement alone you starve the edges of the disks.

I said "two-way", not "shortest movement".

> If you watch a real elevator you'll see they too use the elevator algorithm

They stop for passengers going up _or_ down.
--
Chip Salzenberg - a.k.a. - <chip@perlsupport.com>
"There -- we made them swerve slightly!" //MST3K

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