Da Silva, Joe wrote:
>
> After trying various things, I have found that setting the FIFO receive
> interrupt threshold to 1 (epppd sets this to 8, according to the doc's),
> comm's works like a charm!!! Nice and fast, with packet driver stat's
> reporting zero errors and zero dropped packets (on bad pages, I was
> previously getting about 10 receive errors and 18 dropped packets,
> when loading a 20-25K page).
>
> So, can anybody think of a *good* reason why the FIFO receive
> interrupt threshold should be set to 8??? I know this theoretically
> reduces the comm's overhead a bit, but in practice, this seems to
> be the cause of poor comm's performance (I know I am not the
> only one to have this trouble!).
What speed is the computer this 9600 modem is on ?
I think a 1 or 2 byte threshold at 9600 baud is a lot more appropriate with
a reasonable computer, but would it also waste a lot of computer power if
you have either a faster modem or a very slow computer.
> I understand than Bernie is rewriting "epppd(d)" to reduce it's memory
> needs (just out of curiosity, how is this going to be achieved?). So,
> I would like to propose that this change to the FIFO receive interrupt
> threshold also be implemented. Any thoughts on this ... ?
As long as it is user configurable, why not ?
- Clarence Verge
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