On Fri, 5 Jan 2001, Andreas Dilger wrote:
> I suppose the other area to look at is how pages are layed out when
> they are swapped to disk. If you go from medium memory pressure (where
> unused pages have been swapped already) to thrashing, then if you can
> put the remaining pages of each pro
Marcelo Tosatti writes:
> The following patch does this, and it also changes the readahead code to
> readaround. I'm not sure if readaround is better than readahead for the
> swapin case, and I'll have to test this more to make sure.
No comment on the code itself, but in general I would think tha
On Fri, 5 Jan 2001, Marcelo Tosatti wrote:
> The following patch does this, and it also changes the readahead code to
> readaround. I'm not sure if readaround is better than readahead for the
> swapin case, and I'll have to test this more to make sure.
Ok, I'm stupid. I forgot to attach the pat
Hi,
As I've told before, swapin readahead code is done at a physical basis,
and the correct thing is to swapin readahead only if the physical
on-swap pages are virtually contiguous wrt the one which suffered the
fault and is being swapped in.
The following patch does this, and it also changes
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