High-load CGo: calling nonblocking C/C++ code without surprise ☠️
summary
Explains pitfalls and techniques for calling non-blocking C/C++ code from Go using cgo, focusing on issues that arise with asynchronous OS operations and heavy CPU tasks (compression, crypto, math). Describes how to avoid unexpected blocking and performance problems when integrating C/C++ libraries into high-load Go applications.
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chapters (9)
- 0:00Introduction
- 0:33CGo load problems
- 5:57CGo mechanism in Go
- 10:18Goroutine carousel issue
- 13:54Solution: goroutine limiting
- 17:26Solution: blocking calls
- 20:58Method comparison and benchmarks
- 23:29Summary and recommendations
- 24:54Q&A
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