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Articole: 8

  1. Eliminating Go bounds checks with unsafe

    (Andrii's Blog)

    Hot path optimization: unsafe pointer arithmetic to eliminate bound checks the Go compiler can't remove, given you can prove they are truly unnecessary.

  2. How 4 bytes of padding make array clearing 49% faster

    (Andrii's Blog)

    An alignment quirk on Intel and AMD CPUs: keeping a Go array 8-byte aligned (vs offset 4) makes clearing it up to 49% faster, thanks to how REP STOSQ works.

  3. Optimization catalog. When float division beats integer division

    (Andrii's Blog)

    A counterintuitive hot-path optimization from my Go work: swapping integer division (IDIVQ) for floating-point division (DIVSD) to divide integers faster.

  4. Web compression in 2026: brotli, zstd, and compression patterns

    (Andrii's Blog)

    A practical tour of compression in Go web servers: static assets, dynamic content, shared dictionaries, training, and streaming.

  5. A regression in code I didn't touch

    (Andrii's Blog)

    How a change to one Go function slowed unrelated code by 3%.

  6. Notes from Optimizing CPU-Bound Go Hot Paths

    (Andrii's Blog)

    Lessons from porting Brotli to pure Go.

  7. Notes on how I was creating lvm cache volume

    (Andrii's Blog)

    Notes on setting up an LVM dm-cache volume on Linux.

  8. The most efficient way to reuse http request body in go

    (Andrii's Blog)

    Performance notes on reusing the body of an outgoing http.Request without redundant allocations and copies in Go middleware.