High Order Bit: The In
summary
Facebook runs at 300 million monthly actives, users spend 8 billion minutes per day, and the site stores ~20 billion photos while serving ~1.2 million photos/sec at peak. Real-time homepage generation picks the top ~45 stories in 10–20 ms using a custom in‑memory multi-feed system, then fills rich content via a heavily modified memcached handling ~50 million ops/sec and scaled 5x. The talk gives measured telemetry, concrete architecture choices, and which pieces required reengineering to work.
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chapters (5)
- 0:00The scale of Facebook
- 2:39Traditional scaling models
- 4:29The social graph challenge
- 6:09Technical solutions
- 7:15Engineering culture
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