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The kernel column by Jon Masters #87

May 25, 2010, 21:32 (0 Talkback[s])
(Other stories by Jon Masters)

[ Thanks to Linux User & Developer magazine for this link. ]

"The past month saw steady progress toward the final 2.6.34 kernel release, including the announcement of initial Release Candidate kernels 2.6.34-rc1 through 2.6.34-rc4. The latter had an interesting virtual memory bug that added a week of delay (I will cover that in a future issue), and of course there was already an incompatible release of the nouveau graphics driver that was covered in last month's column. But such issues aside, the 2.6.34 kernel is otherwise shaping up to be a good release, including a number of new features of some note as well as fixes for various performance regressions that have affected some of the more recent comparative benchmarks against older releases.

"Amongst the new features in 2.6.34 are the LogFS log-based flash file system that has been in the works for the past few years as a replacement for JFFS2/3 (or YAFFS2 even), and support for asynchronous suspend and resume of devices, which should considerably improve system suspend and resume times because it allows for different subsystems to suspend in parallel rather than sequentially. The inclusion of LogFS support will be of particular interest to many embedded developers, since it provides a very scalable journaled flash file system with built-in file versioning support of the kind needed to really support today's large flash devices, while async suspend and resume will benefit laptop users and those working on lower power devices that need to frequently use suspend."

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