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SubjectRe: [Kiobuf-io-devel] RFC: Kernel mechanism: Compound event wait

On Thu, 8 Feb 2001, Mikulas Patocka wrote:

> > > > How do you write high-performance ftp server without threads if select
> > > > on regular file always returns "ready"?
> > >
> > > Select can work if the access is sequential, but async IO is a more
> > > general solution.
> >
> > Even async IO (ie aio_read/aio_write) should block on the request queue if
> > its full in Linus mind.
> This is not problem (you can create queue big enough to handle the load).

The point is that you want to be able to not block if the queue full (and
the queue size has nothing to do with that).

> The problem is that aio_read and aio_write are pretty useless for ftp or
> http server. You need aio_open.

Could you explain this?

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