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Code density and performance go hand in hand. Higher code density means higher likeliness that performance-critical code will fit in L1$.
by snvzz 4y ago
Code density and performance go hand in hand.
Higher code density means higher likeliness that performance-critical code will fit in L1$.
- therealcamino 4y agoCode density is one factor in a tremendously complex system. The entire design philosophy of RISC architectures for the last 35+ years is predicated on the notion that it's not the most important one, and shouldn't be focused on in isolation.
- snvzz 4y agoThe RISC paper was all about the need to strongly justify any complexity. I don't quite remember it even touching code density.
- therealcamino 4y agoFrom the abstract of the RISC-1 paper: "Although instructions are simpler, the average length of programs was found not to exceed programs for DEC VAX 11 by more than a factor of 2."