On Wed, Aug 23, 2000 at 11:17:20AM -0400, Joshua N Pritikin <[EMAIL PROTECTED]>
wrote:
> > please show me where in linux is the support for asynch file I/O. i have
> > not found it.
>
> Agreed. SIGIO != asynchronous I/O; SIGIO is a hack.
First of all, SIGIO *is* very nice if you want to do aio. Why do you
consider it a hack? It seems to me exactly equivalent to kqueue: you tell
the kernel "please deliver me signal number xyz" and the kernel delivers
you the signal + the event information you need. Vastly better than select
in most cases Event is being used.
not very scalable (you need to do select if the kernel event queue
overflows) for high number of events, but for a low number of events it
has the requested low overhead. select/poll is difficult to beat anyway in
high load situations.
--
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