Scalability on ftp is important, async sendfile reduces switching overheads
and thread count (remember 8K task struct/thread, cache and tlb overhead..)
> And IMHO the problem with the number of threads/processed necessary for
> the implementation (that still can be managed efficiently) seems to be
> so significant now because existing HTTP servers in all their forms
> have large memory footprint thus causing unnecessary paging when the
> number of requests increases.
So you want to solve the "its big" problem with "its big but I stuffed it
in the kernel" ?
Apache doesnt use CLONE and VM sharing. That is an apache problem.
Alan
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