Re: [PATCH] address_space_operations unification

Date: Mon May 08 2000 - 03:00:47 EST

Linus Torvalds <> writes:
[ ... ]
> So there is nothing fundamentally impossible here, and it would have some
> very nice behaviour (write out a shared dirty page just _once_, instead of
> "once per dirtier").
> Happily, the "multiple mmaped writers" case is extremely rare and usually
> doesn't make any sense at all (which is probably why it is rare), so the
> performance issue is probably not really a very realistic one.
> [ Famous last words. I wonder when the next mindcraft comes along and
> creates a benchmark for this.. It would have to be fairly contrieved, I
> suspect. ]
> Linus

Unfortunately, no. :-(

Once apon a time there used to be a news server that used
a mmap()'ed active and history file with lots of process
receiving news and writing updates into the active and
history files. Alas, poor thru-put. I knew it,


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