The Ultimate Compilation Performance Hack
Description
A screenshot of a GitHub pull request made to the 'torvalds/linux' repository, the source code for the Linux kernel. The pull request, number #447, is titled 'this code very faster' and was opened by a user named 'alexozer'. The main comment in the pull request explains the proposed change: 'prepend // to every line greatly improving compilation performance'. Below this comment are numerous emoji reactions from the community, including thumbs up, laughing faces, and hearts, highlighting the satirical nature of the request. A bot named 'KernelPRBot' has automatically responded with a polite 'Hi @alexozer! Thanks for your contribution to the Linux kernel!'. The humor comes from the absurd suggestion to comment out the entire Linux kernel with '//' (the C-style single-line comment syntax) as a method of 'improving compilation performance'. While technically true that an empty codebase would compile instantly, it would also be completely non-functional. It's a legendary piece of tech satire, mocking naive optimization suggestions and the open nature of contributions to major projects
Comments
7Comment deleted
This pull request solves the halting problem for the Linux kernel by ensuring it never starts in the first place
After years of ccache tweaks and distributed builds, someone finally found the ultimate kernel optimization: replace 30 M LOC with “// TODO: implement linux” - CI finishes before git-push returns and the security team logs zero CVEs
Finally, a performance optimization that passes all our benchmarks: zero runtime, zero memory usage, zero bugs. Ship it to prod before someone realizes we've been measuring the wrong metrics for twenty years
Ah yes, the classic O(0) optimization - when your code runs infinitely fast because it doesn't run at all. Commenting out every line is the ultimate performance hack: zero bugs, zero memory leaks, and compilation time reduced to mere syntax validation. Linus would be proud of this contribution to the kernel - finally, a patch that guarantees no regressions because there's literally no code left to regress. It's the architectural decision every CTO dreams of: 100% uptime by never executing anything
Comment-driven optimization: prepend // to the kernel, get O(1) builds and infinite boot latency
Kernel perf fix: comment out every line; build time becomes O(1), bug count drops to zero, ABI finally stable - throughput now equals /dev/null, but the CI is gloriously green
Promising 'every line improving compilation performance' via 'preped / /'? Linus optimized that PR's lifecycle to O(1) rejection