After more testing and cleaning up of the patch posted here earlier (test2), I've put it together as a new BFS release with almost trivial changes since that test2 patch. The changes are cosmetic only apart from a removal of the warning which is hit occasionally and is now harmless on BFS.
Just to reiterate, unless you are on an SMP machine (2 or more threads or cores) AND are using a scaling CPU frequency governor (e.g. ondemand), then there will be no significant performance advantage to upgrading to BFS 370 or ck2. For those with that combination, what you can expect to see is an increase in throughput with lightly loaded machines (single threaded apps most affected) and likely an increase in battery life. Overall latency is unlikely to be affected keeping interactivity relatively the same but responsiveness should also increase. If you are unsure of the difference, read this summary I wrote for interbench:
It applies with some minor offsets to 184.108.40.206 so you can safely apply it to that kernel if you like.
BFS is available here:
And Ubuntu packages of 220.127.116.11-ck2 and 18.104.22.168-ck1 which have the new BFS are now available here:
EDIT2: SEE ABOVE NOTICE! PATCH CONSIDERED BAD, GO BACK TO 2.6.38-ck1 and BFS 0.363 PLEASE!