mvar writes: From the H: Oracle has released a second beta version of "DTrace for Oracle Linux". The Linux port of the tracing software that was originally developed for Solaris now implements a provider for SDT (Statically Defined Tracing), providing in-kernel static probes; the developers say that they have also fixed a number of bugs. This version of DTrace (Dynamic Tracing Facility) requires the Linux 2.6.39-based version 2 of Oracle's "Unbreakable Enterprise Kernel", which is due to be part of Oracle Linux 6 and is currently still in its beta phase.
mvar writes: Dtrace co-author Adam Leventhal writes on his blog about Dtrace for Linux:
Yesterday (October 4, 2011) Oracle made the surprising announcement that they would be porting some key Solaris features, DTrace and Zones, to Oracle Enterprise Linux. As one of the original authors, the news about DTrace was particularly interesting to me, so I started digging. Even among Oracle employees, there’s uncertainty about what was announced. Ed Screven gave us just a couple of bullet points in his keynote; Sergio Leunissen, the product manager for OEL, didn’t have further details in his OpenWorld talk beyond it being a beta of limited functionality; and the entire Solaris team seemed completely taken by surprise. Leunissen stated that only the kernel components of DTrace are part of the port. It’s unclear whether that means just fbt or includes sdt and the related providers. It sounds certain, though, that it won’t pass the DTrace test suite which is the deciding criterion between a DTrace port and some sort of work in progress.