Cache leverage

How it behaves

One input on the horizontal axis, the others held fixed.

Worked examples, recomputed

Every number the mechanisms quote for this relationship is recomputed from it, so none of them disagrees with it.

• h = 95% → 20 to 1
• h = 99% → 100 to 1
• 99% → 98% doubles the load below
• h = 0.9 → 10× on a cold restart
• h = 0.99 → 100× on a cold restart
• h = 0.999 → 1000× on a cold restart

Where it appears

Each mechanism states it in its own names. The general symbol each name stands for is shown with it.

• Caching

  What happens when we deliberately keep a second copy of data that no protocol forces to be correct?

  $$1/(1-h)$$

  Read it in place →

• Emergent Failure Dynamics

  What happens when nothing is broken, every component is healthy, and the system's own response to stress makes the stress worse?

  $$1/(1-h)$$

  Read it in place →