On Fri, 16 Feb 2007, Kris Kennaway wrote:
On Fri, Feb 16, 2007 at 05:12:33PM +0000, Joel Dahl wrote:
joel 2007-02-16 17:12:32 UTC
FreeBSD doc repository
Modified files:
en/projects/ideas index.sgml
Log:
Spring cleaning in preparation for Google SoC 2007. Remove the following
projects (based on discussions with netchild and rwatson):
- FPU subsystem overhaul: Not suitable as a Google SoC project.
- Process Checkpointing: Not suitable as a Google SoC project.
Is this a "Google SoC projects list" or a "FreeBSD projects list"? IMO just
because something is not an appropriate SoC project doesn't mean it's not
suitable for someone more advanced to take on.
The FPU subsystem overhaul port has already been done by Attilio and is
available as patches, I believe, and basically requires evaluation at this
point. That evaluation might be an appropriate project for someone to work on
(although not for SoC).
I don't mind seeing process checkpointing on an overall project idea list, but
I think we should replace the text there with something substantially more
informative. There's a significant research literature on how you do these
sorts of things and I'm not sure we want to ask people to hack it up without
figuring out what it is we actually want out of such a project. Otherwise,
patches for something we don't want will turn up and leave disappointment all
around. In particular, there are countless reasons why simply implementing
"checkpointing" of processes in isolation is relatively meaningless, and if
required, probably best done with involvement of the application rather than
transparently in the OS. In a clustered/distributed system, checkpointing
provided by the OS is a far more meaningful concept. If we're serious about
wanting checkpointing, let's have a session at the developer summit at BSDCan
on what it is we want and why, have a couple of people read into the research
literature here, and re-add a checkpointing project once we have something a
bit more directed to put up.
Robert N M Watson
Computer Laboratory
University of Cambridge
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