Re: cvs commit: src/sys/amd64/amd64 vm_machdep.c

From: Marcel Moolenaar <>
Date: Thu, 5 Jun 2003 10:38:22 -0700
On Thu, Jun 05, 2003 at 06:07:52AM -0400, Mike Makonnen wrote:
> >   
> >   This change officially marks the ability on ia64 for 1:1 threading.
> Whoohoo! This is great news Marcel.
> What does it mean in practical terms?

1 kernel, 1 thread :-)

Seriously: It basicly works on an UP kernel, but it hasn't got
extensive testing.

libthr will replace libc_r. We'll stop building libc_r as soon as I've
figured out the consequences. Assuming for a moment that KSE is not
viable for 5.2 on ia64, then libthr will be the only threading model
that we support. Again, I have to understand the consequences before
I can commit to this roadmap. If KSE works on ia64 before 5.2, then
ia64 will conform to the other ports that also have KSE.

As for functionality: I have kernel stability on my plate as the high-
priority task for 5.2, which also means that I'll be working on SMP.
A 1:1 threading model is a good vehicle to test SMP, so libthr will
get extensive SMP testing.

Concurrently, we should be building lots of threaded applications
and see how they run. Think about the mozilla's out there. This can
start as soon as 5.1 is out the door. At first I'll focus on UP
testing but as SMP stability progresses, focus will automaticly
shift towards SMP.

 Marcel Moolenaar	  USPA: A-39004
Received on Thu Jun 05 2003 - 10:38:28 UTC