Re: MM deadlock [was: Re: arca-vm-8...]

Chris Evans
1999-01-13T13:58:19Z

On Wed, 13 Jan 1999, Andrea Arcangeli wrote:

> On Tue, 12 Jan 1999, Rik van Riel wrote:
>
> > IIRC this facility was in the original swapin readahead
> > implementation. That only leaves the question who removed
> > it and why :))
>
> There's another thing I completly disagree and that I just removed here.
> It's the alignment of the offset field. I see no one point in going back
> instead of only doing real read_ahead_.
>
> Maybe I am missing something?

Yes. Imagine the paging in of big binary case. The page faults will occur
all over the place, not in a nice sequential order. The page-in clusters
stuff _doubled_ performance of paging in certain big static binaries.

Chris