On 25 February 2010 11:33, Ben Kloosterman <[email protected]> wrote:
> I would say the developer is better of deciding what goes into
> memory as it matches the logic flow than the paging mechanism ,
> especially these days with GC and most of the memory being media
> especially with LRU being almost useless these days ( due to user app
> GCs walking pages or caches where the least recently used page is the
> prime candidate for next use) . Look at DOS where apps much larger
> than main memory were supported by the developer if it ran paging
> these apps would have been unusable.

Letting the application developer decide the paging strategy makes
memory pressure a more useful covert channel, though. It could be less
of a big deal now that applications are moving to safe languages,
indeed, it may be reasonable to allow application specific paging
algorithms working in an environment where side effects from the
frequency of paging are provably impossible.

William Leslie

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