[LITMUS^RT] New release: 2012.3

[Björn Brandenburg]

It's my pleasure to announce the release of version 2012.3 of LITMUS^RT and related tools.

	https://wiki.litmus-rt.org/litmus/Releases

Here's the list of changes:

	• configurable EDF tie-breaks (choose from one of four methods: lateness, normalized tardiness, uniform hashing, PID).
	• many Feather-Trace improvements, including support for userspace-reported system call overhead tracing (via control page)
	• IRQ counts are now exported to the control page
	• latency reduction when carrying out synchronous task set releases
	• fix of preemption logic in P-FP and PSN-EDF plugins
	• various improvements in the P-FP plugin
	• misc. bug and compile fixes (esp. on ARM)
	• liblitmus: new convenience functions lt_sleep() and get_nr_ts_release_waiters()
	• liblitmus: improved test suite
	• feather-trace-tools: ftsort gained the -v (verbose) and -s (simulate) flags, which are useful for outlier debugging
	• feather-trace-tools: improved outlier detection; statistical outlier filtering is no longer required (for details, see B. Brandenburg, “Improved Analysis and Evaluation of Real-Time Semaphore Protocols for P-FP Scheduling”, RTAS 2013)

Glenn, Jonathan, Chris, and everyone else, thank you very much for sending in patches and helping out with testing!

Happy holidays, everyone.

Thanks,
Björn