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Learn comprehensive strategies and techniques for optimizing Linux boot time specifically for automotive applications in this 42-minute conference talk from the Linux Foundation. Discover how Red Hat engineers approached boot time optimization for their In Vehicle Operating System by targeting the Linux kernel, initramfs, and systemd components. Explore methods for measuring unreported time before kernel timer initialization on aarch64 systems and understand the unique challenges of automotive boot requirements. Examine realtime (RT) kernel-specific optimizations, including temporary RCU tuning during boot processes, and learn about the autoinit project that replaces udev in initramfs with systemd integration. Review upstream kernel patch sets that contribute to overall kernel boot speed improvements and gain practical insights into implementing these optimizations for time-critical automotive systems where fast boot times are essential for user experience and safety requirements.
