Pushing Go TLS to 100 Gbps from the server ☠️
summary
A talk about building a CDN in Go that achieves 100 Gbps TLS performance from a single server. It explains why Go was chosen, how the CDN architecture and TLS path are implemented, and describes specific bottlenecks encountered (labeled X, X2, etc.) and the concrete solutions applied to remove them.
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chapters (13)
- 0:00Introduction
- 3:41TLS encryption issues
- 6:26Zero-copy and syscalls
- 9:38Server requirements and bottlenecks
- 11:42KTLS: idea and implementation
- 15:30KTLS code and integration
- 17:38Production results
- 19:23Handshake optimization
- 22:35Session mechanisms
- 25:28Summary and service simplification
- 29:19Go and KTLS evolution
- 31:02Go performance issues
- 32:30Q&A
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