Subject: Re: fast serial ports
To: der Mouse <mouse@Rodents.Montreal.QC.CA>
From: Shannon <shannon@widomaker.com>
List: port-sparc
Date: 02/15/2002 16:20:56
On Fri, Feb 15, 2002 at 02:39:35PM -0500, der Mouse wrote:

> Many of them, yes.  A bunch were already supported (or at least
> appeared to be; I couldn't test them, of course).  However, mine
> wasn't, and I have some reason I can't go into too much detail about to
> think that there are others that aren't but would be easy to add.

When I last checked on magma support, several people told me that 
the drivers were broken, so I gave up on it until I saw your post
on the topic.

> > But I thought I would try it just to see.
> 
> Sure.  May turn out that the machine can handle it without adversely
> affecting whatever else you want it to do, in which case, why not....

I did some testing today, and in heavy PPP traffic, servicing interrupts
at just 38400 is hitting 10-20% CPU usage. How well does your Magma do
in terms of interrupts and CPU usage?

It's immensely frustrating, what Sun did with serial ports.

-- 
shannon@widomaker.com  _________________________________________________
______________________/ armchairrocketscientistgraffitiexenstentialist
 "And in billows of might swell the Saxons before her,-- Unite, oh
 unite!  Or the billows burst o'er her!" -- Downfall of the Gael