Re: 2.1.125 Show stopper list: Draft
Alan Cox (alan@lxorguk.ukuu.org.uk)
Wed, 14 Oct 1998 12:42:19 +0100 (BST)
> > to reclaim memory urgently they simply blow the CPU page tables away
> > and give the task a new empty page table set to page everything back
> > into.
> >
> > Since there are caches these faults don't go to disk but just to the cache
> > and rapidly recover the page tables for the current working set.
>
> But surely with enough small segments I could overflow these caches too?
> Doesn't sound like a complete solution to me.
Since the cache in question is in Linux terms the page cache anyway then no
you can't overflow it and cause a problem. If the page cache isnt holding
all your pages then they were swapped to disk anyway so the behaviour
hasnt changed.
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