Re: Is user-space AIO dead?

[Kenny Simpson]

--- David Lloyd <dmlloyd@xxxxxxx> wrote:
> Wouldn't nonblocking I/O on regular files be nice?

Yes it could be.  As I understand it, regular file writes (not O_DIRECT) are only to the page
cache and only block when there is memory pressure (so it is more of a throttle).

Reads, on the other hand, could be quite handy.  What might be very cool is if there were a way to
mmap and start faulting in the pages in the background, and get notified as they complete - or
when all the faulting is done.

-Kenny


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