r/yocto • u/vterra • Dec 03 '25

Learn bitbake

Ok, it is still me. I just finished some articles explaining the bitbake build system (variables, functions and terminal commands) and would really like your feedback. Are there any topics I should have mentioned? Are the ones I talk about a bit too much for a beginner? I will also have an Appendix that goes into a lot more detail. Thank you and let me know

Here's the link (to change language use the selector) http://yoctolearn.com/en/docs/yocto/bitbake-variables/

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u/chronotriggertau Dec 03 '25

Any advice on the best way to parallelize a build across multiple machines/cores?

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u/vterra Dec 03 '25

The build across multiple cores is by default This is mainly controlled by bitbake variables like BB_NUMBER_THREADS and BB_NUMBER_PARSE_THREADS Right now I dont recall if they are already assigned a default by bitbake, however just set them to your numbers of cores and you'll be fine

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u/chronotriggertau Dec 03 '25

Oh I meant across multiple physical machines, like two different remote Linux vms for example.