The Price of failure )救中国研究院 Let's look at the costs Assume I second to zero a register LI cache hit-1 second(1x L2 cache hit- 4 seconds(plus 3 seconds extra work-7x) RAM hit-25-150 seconds(24x-150x) Disk or net hit -3 weeks(2, 000,000x)The Price of Failure • Let’s look at the costs: – Assume 1 second to zero a register – L1 cache hit - 1 second (1x) – L2 cache hit - 4 seconds (plus 3 seconds extra work - 7x) – RAM hit - 25-150 seconds (24x-150x) – Disk or net hit - 3 weeks (2,000,000x)