On Mon, 21 July 2003 23:42:37 -0400, Valdis.Kletnieks@vt.edu wrote:
>
> Not necessarily. It's quite possible (likely even) that one architecture might
> have N bytes overhead per call, and is allowed a 4K stack, and some other
> architecture has (N+30%) overhead, so 4K isn't enough - 5K is needed. However,
> other considerations cause a whole-page allocation, so instead of allocating
> 5K, it goes to 8K, with a 3K wastage....
And even worse, for short call chains, 4.1k would be enough, but for
long ones, you need up to 5.2k. How much is too much? We don't know
and it depends, so make a pessimistic guess.
Joern
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