On Tue, 29 Jan 2002, Oliver Xymoron wrote:
> Daniel's approach seems to be workable (once he's spelled out all the
> details) but it misses the big performance win for fork/exec, which is
> surely the common case. Given that exec will be throwing away all these
> mappings, we can safely assume that we will not be inheriting many shared
> mappings from parents of parents so Daniel's approach also still ends up
> marking most of the pages RO still.
It gets worse. His approach also needs to adjust the reference
counts on all pages (and swap pages).
kind regards,
Rik
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