I believe one of the reasons Sun3s get better serial port performance 
than Sparcs is because every time an interrupt for the port has to 
be handled, a Sun3 has to save 24 registers in the CPU, whereas the 
Sparc must save 192 registers.

Under light system load, my 3/60 and IPX can both handle 38400.  Once
the system load increases tho, the IPX craps out at anything above 19200.

Brian

brian@playfair.utoronto.ca |  Systems Administrator
brian@camtwh.eric.on.ca    |  ERIC/Playfair
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