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πŸ‡ΊπŸ‡¦ Go performance channel

πŸ‡ΊπŸ‡¦ Go performance channel

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Go performance, runtime, concurrency. Talks, blogposts and open source projects for gophers. Not affiliated with Go team. https://go-perf.dev (mail: hello@go-perf.dev / @olegkovalov)

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Channel Posts
> internal/runtime/maps: add GOEXPERIMENT=mapsplitgroup for KKKKVVVV slot order https://go-review.googlesource.com/c/go/+/711560

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https://go.dev/doc/go1.26
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https://go.dev/blog/go1.26
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Package archsimd provides access to architecture-specific SIMD operations. This is a low-level package that exposes hardware-specific functionality. It currently supports AMD64. This package is experimental, and not subject to the Go 1 compatibility promise. It only exists when building with the GOEXPERIMENT=simd environment variable set. https://pkg.go.dev/simd/archsimd@go1.26rc1
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πŸ₯³ Go 1.25.5 and 1.24.11 are released! πŸ” Security: Includes security fixes for crypto/x509 (CVE-2025-61729, CVE-2025-61727). πŸ—£ Announcement: groups.google.com/g/golang-ann... πŸ“¦ Download: go.dev/dl/#go1.25.5 #golang
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strconv: replace Ryu ftoa with Dragonbox The new implementation has been fuzz-tested against the current Ryu implementation in addition to the existing test suite. Benchmarks show at least ~15-20% performance improvement. https://go-review.googlesource.com/c/go/+/700075 #golang
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https://go.dev/blog/16years
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The Green Tea Garbage Collector https://go.dev/blog/greenteagc
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Memory Allocation in #golang https://nghiant3223.github.io/2025/06/03/memory_allocation_in_go.html
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Making DecodeRuneInString is inlinable #golang https://github.com/golang/go/issues/48195#issuecomment-3224273708
Making DecodeRuneInString is inlinable #golang https://github.com/golang/go/issues/48195#issuecomment-3224273708
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proposal: simd: architecture-specific SIMD intrinsics under a GOEXPERIMENT #golang https://github.com/golang/go/issues/73787#issuecomment-3208178910
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πŸ”₯πŸ”₯πŸ”₯ #golang https://github.com/golang/go/issues/43930#issuecomment-3201879413
πŸ”₯πŸ”₯πŸ”₯ #golang https://github.com/golang/go/issues/43930#issuecomment-3201879413
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https://go.dev/blog/container-aware-gomaxprocs
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https://go.dev/doc/go1.25
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How Go 1.24's Swiss Tables saved us hundreds of gigabytes #golang https://www.datadoghq.com/blog/engineering/go-swiss-tables/
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How to store Go pointers from assembly https://mazzo.li/posts/go-asm-pointers.html
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https://turso.tech/blog/we-rewrote-large-parts-of-our-api-in-go
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Assert your #golang code is inlined and bounds-check eliminated https://github.com/jordanlewis/gcassert
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Golang sync.Pool is not a silver bullet https://wundergraph.com/blog/golang-sync-pool #golang
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proposal: runtime: CPU limit-aware GOMAXPROCS default #golang https://github.com/golang/go/issues/73193 by @prattmic.com
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