Write Amplification Is a phenomenon where the actual writes that physically happen are multiples of the actual writes desired. In this episode, I’ll discuss 3 types of write amplifications and their effects on performance and lifetime of storage mediums.

• 0:00 intro
• 2:00 Application write amplification
• 4:30 Database write amplification
• 9:30 SSD Disk write amplification
• 16:00 SSD doesn’t like BTrees
• 20:00 summary

Resources
https://en.wikipedia.org/wiki/Write_amplification
https://www.cybertec-postgresql.com/en/hot-updates-in-postgresql-for-better-performance/

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