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So Linus wants to dump libcrypt in git by rolling his own to speed up the test suite by a "couple of seconds?" Good for Linus-- I guess.

• Andys 17y ago
  This provides a valuable insight into Linux culture. There have been many cases where the micro-optimization obsession has displaced effort from the "big picture".
  • jcw 17y ago
    A lot of times, micro-optimizations are more fun. In a hobbyist culture, we tend to do what is most fun.
• old-gregg 17y ago
  He's not rolling out his own libcrypt. He's fixing a bug: i.e. getting rid of the unnecessary dependency on a huge library (OpenSSH) just because of a hashing function. This is systems programming, not a brainless enterprise data pumping: you get rid of unnecessary dependencies if you want to run on cell phones and blade servers at the same time.
  • dkarl 17y ago
    If all he wanted was to dump a dependency, it would have been easier to cut-and-paste a slightly slower implementation from another library. I think he's saying he enjoyed it. The benchmarks are just after-the-fact justification.