Explore real-time computing capabilities in Linux environments through this 44-minute conference talk from Kernel Recipes 2025. Learn what constitutes real-time systems, understand the importance of meeting deadlines, and discover why real-time operating systems are essential for certain applications. Examine Linux's suitability for real-time workloads and dive into techniques for improving real-time behavior including real-time scheduling policies, PREEMPT_RT patches, CPU isolation strategies, and NOHZ_FULL configurations. Analyze actual latency test results from bare-metal implementations and investigate the potential for real-time virtual machines using KVM, including their motivations, limitations, and performance characteristics compared to bare-metal deployments.