Oracle Linux Kernel Update: Equipped with a new file system

Oracle released its Linux kernel update on Tuesday, adding many of the latest Linux technology elements. Among the many new features, Dtrace is attracting attention as a Linux debugger.

DTrace is a powerful dynamic tracking framework that allows administrators, developers, and service teams to accurately answer any questions about the operating system and user programs. Sometimes the consumer does not know if the probe is needed when executing the probe point, and only knows it after the probe is executed for a while, so the prediction cannot cover this situation. DTrace implements such a special Speculative Tracing, which works by first performing a probe and temporarily saving the data in a temporary cache. If it finds that the data is of interest, it commits to the real cache. Otherwise, discard those data.

Oracle's Linux becomes Oracle Unbreakable Enterprise Kerne V2, the first generation was released in July last year, based on the Linux main kernel V3, has been well received

We can divide the Linux kernel development The pattern is imagined as a tree, and each developer has its own branch, and each branch has a direct connection with the trunk. At present, the Linux kernel has several branches. The latest branch mainline contains the latest features, but it is not recommended to be used in the production environment due to lack of testing. The branch that marks the stable is that each previously released version has The stable version will only be updated with security patches and bugs, and no new features will be added. Branched versions such as snapshot and linux-next contain many newer changes. Most Linux distributions contain kernels from the stable branch, while some distributions do some customizations on these branches (such as Red Hat and Debian), and of course have their own owners.