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Printk Improvement For Linux 6.19 Can Significantly Speed-Up Boot Times For Some Systems (www.phoronix.com)

submitted 1 month ago by cm0002@europe.pub to c/linux@programming.dev

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The Linux kernel's printk code for logging kernel messages has some useful improvements with the Linux 6.19 kernel.

First up is the possibility to "significantly" speed up the Linux boot process for some systems by releasing the console lock between reach record in the KThread used for legacy consoles on real-time (RT) kernels. If you are using a legacy console on a Linux RT system, the boot time can be much better with Linux 6.19.

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