Part 01 · How a Database Thinks

Sequential vs Random I/O

Sequential I/ORandom I/OIOPSThroughput

Reading 1M orders in a row is fast, jumping to 1M random places is not. Why this one fact shapes logs, indexes, LSM trees and almost everything else.

⏱ 6 min · Station 4 of 123

✎

This chapter is being written.

The route is mapped; the full walkthrough arrives here soon.