Dear @golang developers, if you're bumping your project to use the new Go1.16 packages, **PLEASE** gatekeep them behind build tags so you don't break projects importing them with older versions. // +build go1.16 // +build !go1.16 Both work to make this happen…

go version devel +15f2d0e Fri May 13 01:19:05 2016 +0000 linux/amd64 func BenchmarkAppendFloatLarge1(b *testing.B) { benchmarkAppendFloat(b, 622666234635.321e-320, 'e', -1, 64) } func Bench...

Just hit submit on golang.org/cl/216424. In Go 1.17, you will (probably) be able to do this: b := make([]byte, 4) p := (*[4]byte)(b) Thanks to @rogpeppe for filing golang.org/issue/395 (10 years ago!).

learned about an incredible tool for Go programs last night called statsviz (github.com/arl/statsviz). it adds a debug webpage to your program with a very snappy live visualization of runtime stats. useful for understanding GC behavior!

We heard you wanted smaller binaries: [alt] Graph shows recent progress in total binary size over time, 1.16 & 1.17 dev against 1.15. Total geomean size down 9.3%, text down 17.2%. Performance, geomean time down 4.5%. (This was a (big) team effort.)

Learn how the engineering team solves hard problems and uses the Roaring bitmap encoding format to efficiently manipulate integer sets on ARM64.

profile: Simple profiling for Go Evolution of pkg/profile supporting: - Multiple profiles at once - Idiomatic flags like go test - Environment variable config like GODEBUGgithub.com/mmcloughlin/pr…

gzhttp: Easy to use, fast #golang gzip "middleware" for stdlib HTTP handlers and client transports. Forked/based on nytimes/gziphandler and approx 2x faster with fewer allocations and many other improvements. Check it out at github.com/klauspost/comp…

Go’s place between C and Python in terms of abstraction and garbage collection memory management model has made it attractive to programmers looking for a fast but reasonably high level language. However, there is no free lunch. Go’s abstractions, especially…

Recommended: Shift-based DFAs, by @pervognsen. gist.github.com/pervognsen/218… Tried it out for replacing Go's utf8.Valid. Don't get to see this very often: