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Go

What the engineers at Go write about, ranked by depth and by what readers find useful.

  1. 01Go · performance

    Better HTTP/1 connection reuse

    Failing to read an HTTP/1 response body completely prevents connection reuse, forcing clients to repeatedly pay the high cost of TCP and TLS handshakes. While developers previously had to implement complex manual body-draining logic, Go 1.27 introduces automatic asynchronous response draining in the net/http package. This improvement allows developers to simply close response bodies without worrying about connection pooling performance.

    DEPTH ■■■■■7 min read11 days ago

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  2. 02Go · architecture

    Arch-specific SIMD in Go

    Go 1.27 introduces the archsimd package to provide low-level architecture-specific SIMD intrinsics for amd64, arm64, and wasm without requiring assembly. The API uses sensible naming conventions, zero-cost type reinterpretation, and opaque masks to improve usability and maintainability while achieving high performance. The resulting design enables developers to write optimized vectorized code safely with proper runtime CPU feature checking and compiler optimizations.

    DEPTH ■■■■■12 min read3 weeks ago

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