On 2011-09-02 21:06, Neto, Antonio Jose Rodrigues wrote: > The question that I have is: > > "Buffered aio will fall back to sync io, and it's known that mixing" > > Why did buffered aio will fall back to sync io? Please don't top post, reply beneat the original text. Buffered aio will degenerate to normal sync IO, because the kernel does not support async buffered io. -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html