Introduction to CRuby source code
summary
Shows how to build CRuby from source (git checkout, ./configure, -O0 -g then make && make check with ~13,000 tests), how to point PATH/GEM_HOME, and how to attach lldb/GDB/Xcode for C‑level debugging. Points to concrete files like array.c and numeric implementations, demonstrates adding C methods to Fixnum and creating a C long array with malloc, and gives measured speedups (examples: 10–50×, up to 30× for fib, uploader claims CRuby can be 100 times faster for hot code).
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chapters (9)
- 0:00CRuby source code
- 3:16Building Ruby from source
- 8:27Debugger setup for CRuby
- 10:13CRuby folder structure
- 16:26Adding methods to classes
- 19:14C extensions for performance
- 23:25Optimized C arrays
- 26:59Performance with C extensions
- 27:20Key takeaways
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