The real-time community around Linux has been responsible for important changes in the kernel over the last few decades. Preemptive mode, high-resolution timers, threaded IRQs, sleeping locks, tracing, deadline scheduling and formal tracing analysis are integral parts of the kernel rooted in real-time efforts, mainly from the PREEMPT_RT patch set. The real-time and low-latency properties of Linux has enabled a series of modern use cases, like low-latency network communication with NFV and the use of Linux in safety-critical systems. This MC is the space for the community to discuss the advances of Linux in real-time and low latency features. For example (but not limited to): - Bits left for the PREEMPT_RT merge - Advances in the fully preemptive mode - CPU isolation (mainly about how to make it dynamic) - Tools for PREEMPT_RT and low latency analysis - Tools for detecting non-optimal usages of the PREEMPT_RT - Improvement on locks non-protected for priority inversion - General improvements for locking - General improvements for scheduling - Other RT operating systems that run in parallel with Linux and the integration with Linux (e.g., Xenomai). - Real-time virtualization Examples of topics that the community discussed over the last years that made progress in the RT MC: - timerlat/osnoise tracers and RTLA - DL server for starvation avoidance - Proxy execution (still under discussion) - Tracing improvements - for example, to trace IPIs It is important to notice that it is not _only_ about PREEMPT_RT, but anything related to real-time and low latency. For instance, CPU isolation, real-time scheduling, timers, other OSs that run in parallel... and so on. Join us to discuss the future of real-time and low-latency Linux. This email has a list of people in Bcc, based on a list of commit authors in sched/locking/power/time. It is far from being complete. So, please forward this message to the people on your team working on scheduling-related topics. -- Daniel on behalf the organization: Sebastian Andrzej Siewior, Frederic Weisbecker, Steven Rostedt, Juri Lelli and myself.
