jFransham

Achieving warp speed with Rust

Contents:

• Number one optimization tip: don't
• Never optimize blindly
• Don't bother optimizing one-time costs
• Improve your algorithms
• CPU architecture primer
• Keep as much as possible in cache
• Keep as much as possible in registers

pervognsen

Suppose you are writing a simple one-pass compiler in the Wirth style, and you want to
target non-RISC architectures like the x86 where conditional operations use shared condition state.

Case 1:
  if (x <= y) z = w

  CMP x, y
  JGT skip
  MOV z, w
  skip: