【发起分享提案】深入学习：“Building a better Go linker”

[yangwenmai]

深入学习：“Building a better Go linker”

在 Go 1.16 中，linker 获得了 20-25% 的提升，减少了5-15%的内存开销，希望可以深入学习，了解其实现原理。

诉求

知其所以然

参考资料

https://golang.org/doc/go1.16#linker

This release includes additional improvements to the Go linker, reducing linker resource usage (both time and memory) and improving code robustness/maintainability. These changes form the second half of a two-release project to modernize the Go linker.

The linker changes in 1.16 extend the 1.15 improvements to all supported architecture/OS combinations (the 1.15 performance improvements were primarily focused on ELF-based OSes and amd64 architectures). For a representative set of large Go programs, linking is 20-25% faster than 1.15 and requires 5-15% less memory on average for linux/amd64, with larger improvements for other architectures and OSes. Most binaries are also smaller as a result of more aggressive symbol pruning.

https://docs.google.com/document/d/1D13QhciikbdLtaI67U6Ble5d_1nsI4befEd6_k1z91U/view#

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