Re: mmap/mlock performance versus read

From: Albert D. Cahalan (
Date: Wed Apr 05 2000 - 21:21:31 EST

Linus Torvalds writes:

> - page faulting is expensive. That's how the mapping gets populated,
> and it's quite slow.

Could mmap get a flag that asks for async read and map?
So mmap returns, then pages start to appear as the IO progresses.

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