SMP and setrunnable()- scheduler 4bsd

Terry Lambert tlambert2 at
Thu Jul 10 01:48:02 PDT 2003

John Baldwin wrote:
> On 09-Jul-2003 Terry Lambert wrote:
> > I thought that there was either a SPARC or Alpha box where Poul
> > had to mess with the divider because they were delivered round
> > robin, instead?
> No.  The only anomaly I know of is that on Alpha 2100's, the clock
> interrupt seems to be round robin rather than broadcast (it is broadcast
> on all other SMP Alpha's as far as we can tell.)  So far we aren't sure
> exactly how off it is so there isn't a correction in the tree.

The 2100 was exactly what I was thinking of when I posted that; I
had to check my mail archives to find the email about it.  Thanks!

-- Terry

More information about the freebsd-current mailing list