zeroing pages in the idle task?

[Cort Dougan]

I missed a lot of this thread, this is the first message I picked up on.

} To come back to my original question...

It's a dead loss on SMP, but it can be just run on UP machines.  The main
problem was I didn't have enough time to finish it and didn't want to leave
something running in the idle task that I hadn't finished studying the
effect of.

I really wanted to push it up to the freelist since I don't think it's a
PPC-only optimization.  I never bothered trying to push it since at that
point the tree was moving to the stable point and wasn't going to be
changing that radically soon.

} > - is there any problem with using this feature?
}
} I didn't have any, but that's only my box then....

Not without a lot of study and testing.  I haven't touched the code in a
long time...

} What do you think, Paul, Cort?

It's not a matter of turning it on - it's a matter of making it work again
and testing it.

} Maybe enabling it by default would be a good choice? It can always be
} disabled...
}
} I'll post a patch on sourceforge.

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