[EMAIL PROTECTED] wrote:
> What you might prefer is a rtl_fifo mode that used shared memory so that
> read/write did no copying. But I have not yet seen a good benchmark showing
> that the fifo _is_ a bottleneck. Is there such an example?
Just think that fifos, i.e. tq_rtl, unless something has been changed
recently, are run with tq_scheduler. Since that happens only when the
Linux scheduler is called you'll get the answer without the need of any
example.
In fact I could not obtain 5 MB/s to disk from an interrupt handler
running at 1 Khz till I modified fifos to run, at user choice:
tq_immediate, tq_timer or wake_up_interruptible.
Ciao, Paolo.
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