Engineering essays on data platforms, distributed systems, and the craft of building reliable software at scale.https://cannonkalra.github.io/enhttps://cannonkalra.github.io/blog/part-1-point-lookups-and-the-hardware-beneath-them/https://cannonkalra.github.io/blog/part-1-point-lookups-and-the-hardware-beneath-them/What a key-value lookup is, why hash maps answer it in O(1), and why the same operation behaves completely differently in memory and on disk.Fri, 03 Jul 2026 00:00:00 GMTdata-structureshash-mapsassociative-arraysmemorystoragehardwareCannon Kalra