Update: Just as I started blogging about the Optane technology, it turns out that Intel is shutting down the Optane business (after bringing the latest-gen “Crow Pass” Optane memory to market - probably just for satisfying existing commitments). While not exactly the same thing, keep an eye on the new CXL standard developments to see where the data center/cloud infrastructure world is going (CXL is basically cache-coherent disaggregated memory access protocol via PCIe5. - Linux, Oracle, S...| tanelpoder.com
I talked about a new diagnostic event wait_event[] back at OakTableWorld 2014. Oracle introduced this feature in version 12.1. But since there’s only a camera recorded video of that talk, I’ll document some examples here. Attaching Actions to Wait Events The new wait_event[] event name allows you to attach actions, like tracing, to wait events. The action runs whenever a wait event ends. It behaves like Oracle’s SQL Trace that writes out trace lines for wait events only when the wait en...| tanelpoder.com