Getting the Most Bang out of your Buck with Compilers on POWER
summary
Shows which compiler knobs actually move metrics on POWER: specific IBM XL flags, GCC and LLVM options, builtins and pragmas tied to vectorization and inlining. Uses microbenchmarks and at least one real application to demonstrate when a knob gives measurable speedup and when it regresses, and shows compiler optimization remarks and emitted instructions to prove why optimizations succeed or fail. Includes concrete examples to reproduce and interpret performance results.
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chapters (6)
- 0:00Introduction to compilers
- 3:17Compiler optimization basics
- 7:35PowerPC compiler features
- 12:45Memory and performance tips
- 16:25Advanced compiler techniques
- 19:22Real-world compiler impact
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