Re: How can we make page replacement smarter

[Rik van Riel]

Alan Cox wrote:
> > Files are different.  File content tends to be grouped
> > in large related chunks, both logically in the file and
> > on disk.  Generally there is a lot more file data on a
> > system than what fits in memory.
>
> Binary paging patterns don't always look like that unfortunately although
> I suspect we might want to be weighing towards paging out R/O file mapped
> pages earlier simply because they are bigger linear chunks

A properly implemented use-once algorithm should be able
to filter out the spatial locality of reference pages from
the temporal locality of reference ones, though...

--
Politics is the struggle between those who want to make their country
the best in the world, and those who believe it already is.  Each group
calls the other unpatriotic.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/