Storage Latency: How Far Away is the Data?

Registers

On Chip Cache

On Board Cache

Memory

Disk

1

2

10

100

Tape /Optical

Robot

10

9

10

6

Olympia

This Hotel

This Room

My Head

10 min

1.5 hr

2 Years

1 min

Pluto

2,000 Years

Andromeda

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