FreeBSD SoC

I've signed up to mentor a FreeBSD SoC project again this year. I'm most interested in sponsoring the following projects:

1) Improved schedgraph support.
2) User-space lock profiling tool
3) Improved VM tree structures
4) SMP safing Giant protected filesystems.

Maybe others. I know schedgraph and the user-space lock profiling may not sound as glamorous but they have the potential to have the biggest long-term impact on performance. Please email jeff at freebsd.org if you'd like to discuss these further.

The official list of project ideas is here:

http://www.freebsd.org/projects/summerofcode.html