Thanks to everyone who read my question; here some precisions:
Actually, my soft is a kind of interactive filter: it takes a lot of imput parameters (from keyboard at the moment, but as soon as i've understood how it works, i will increase the number of supported io devices); treats it in a particular way and produces an output. This 'particular way' requires a lot of clock cycle, so speed is my first problem; (that's part of reason why everything is directly written in assembly). I've already buffered input and output, but only as far at it was possible: since loop (X) input could affect loop (X-1) general data manipulation, and change output, it must be detected quickly. The time needed to read/write is still to long. When CPU is waiting on some new data, he cannot preform any other operation, and freezes data manipultion; that's why I'm looking for a new way to in/output the soft...
I've found out in syscall.master the aio_read/write call. Man page says operation is asynchronous, so it returns quite immediatly after enqueuing the io thread. Could that be a solution ? Or back to kernel module (by the way: is it possible to write on in assembly) ?
regards,
Felix
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