> I am just curious how AFS handles mmap(ed) files. I am assuming
> that this is a no-no, but it looks like there are versions of
> NFS that do it properly, so I was wondering if I can also with AFS.
> What will happen with DFS? Thanks
Actually, this is very platform specific, and on many platforms it is
not even AFS which is doing the mmap. For my Linux-AFS port, I have a
read-only mmap, such that you can mmap a file in read-only mode only.
This is accomplished by reading the page into memory when a page-fault
occurs.
I don't know what other platforms do, but this tends to be fairly good
performance (IMHO).
-derek
Derek Atkins, SB '93 MIT EE, G MIT Media Laboratory
Member, MIT Student Information Processing Board (SIPB)
Home page: http://www.mit.edu:8001/people/warlord/home_page.html
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