FreeBSD 7, DragonFly's status
dillon at apollo.backplane.com
Thu Feb 28 10:09:45 PST 2008
Well, I'll give you my 5-second opinion.
What I am not worried about:
* Developer interest has always increased slowly and continues to
do so. I'd be interested in commit statistics but my gut feeling,
from NOT having to push into subsystems that I used to have to
push into, is that more developers are working on more of the
* More developers are doing the 'harder' aspects of kernel
development rather then just me. This is very, very important.
* Ports and packages. This was a huge worry of mine at the beginning
of the project. I no longer worry about it.
What I am worried about:
* The big-ticket items that we have traditionally compared ourselves
against, SMP primarily, have developed slowly, primarily because
up until recently I was the only person working on it.
It an issue of man-hours more then anything else. FreeBSD simply
has more developers working on SMP then we do.
We have the infrastructure and the abstraction, we now need to get
down to the brass balls and finish it.
* I really want to see someone take up the ball on getting the
network stack MP safe. It's important to the project but I can't
do that and HAMMER at the same time. It's the easiest thing
to make MP safe in the project.
* Similarly with AMD64. We need it. I've developed the
infrastructure separation required and we even have a fully
virtualized kernel (vkernel) which demonstratres the infrastructure
separation. Most of the generic kernel code can easily support
a 64 bit architecture. The compiler supports it. It's a project
waiting for someone to take up the ball.
* Our interrupt routing subsystem really needs a major upgrade.
(i.e. a major port from FreeBSD).
Where I think the future is:
* SMP, Storage, and SSI. Real time mirroring at the logical level.
HAMMER is a major component for the storage, SSI, and mirroring
components, and I believe HAMMER will be a large interest magnet.
Our project goals have not changed, but if I had it all to do over
again I would have started work on HAMMER much earlier then I did.
I spent more time then I should have perfecting the low level
infrastructure, trying to build a base upon which all the other
work could occur.
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