🚀 go-pugleaf

In article <1993Jan6.213927.2788@ukw.uucp>, lupe@ukw.uucp (Lupe Christoph) writes:
> searsk@med.ge.com (Kevin D. Sears) writes:
> 
> >In article <1992Dec31.162852.2315@hugis.nbg.sub.org>,
> >hugibaz@hugis.nbg.sub.org (Ingo Kraupa) wrote:
> >> 
> >> A few months ago someone posted that there is a patch to get higher bps-rates
> >> than 38.4kbps on a sun sparcstation. I told this to a friend, and he asked
> >> me if I can get this patch for him. I forgot the person, but I'm sure he
> >> posted to this group.  Any hint would be very appreciated.
> >> 


Please note that I am not speaking for Sun, when it comes to the serial
device driver I'm just a user.

Bear in mind that the 8530 in a SPARCstation is a character-interrupt
device. Every received character causes a CPU interrupt and the processor
must read the chip registers, store the value in memory, etc. Asking it
to do that at >38.4 is asking a lot, especially for an SS1 or 1+. I have
seen SS2s running at 64k, but you can expect that to be quite a load
on the system. If the machine is heavily loaded you may lose characters.


Steve