In article <Pine(dot)BSO(dot)4(dot)58(dot)0407081408180(dot)1211(at)cyclops4(dot)esentire(dot)com>,
Edmund Dengler <edmundd(at)eSentire(dot)com> writes:
> But on the other hand, general algorithms which are designed to work under
> a wide variety of circumstances may fail in specific cases. I am thinking
> of VACUUM which would kill most caching algorithms simply because we
> cannot tell the O/S "by the by, this set of pages will not be used again,
> and therefore it would be fine to use almost none of the general cache to
> store this".
We _can_ tell that the OS: man madvise.