🇺🇦 Go performance channel
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go-perf.dev
🇺🇦 Go performance channel
@go-perf.dev
630 followers 17 following 67 posts
#golang performance, runtime, concurrency. Talks, blogposts and open source projects for #gophers (mail: [email protected]). Not affiliated with Go team.

https://go-perf.dev/
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Reposted by 🇺🇦 Go performance channel
golang.org
“The Green Tea Garbage Collector” by Michael Knyszek and Austin Clements — https://go.dev/blog/greenteagc

#golang
October 29, 2025 at 4:59 PM
go-perf.dev
Memory Allocation in #golang

nghiant3223.github.io/2025/06/03/m...
Memory Allocation in Go
Memory Allocation in Go
nghiant3223.github.io
September 22, 2025 at 6:30 PM
Reposted by 🇺🇦 Go performance channel
bboreham.bsky.social
Video is up now - my take on how map is implemented in Go, and what changed from Go 1.23 to 1.24 and 1.25.

youtu.be/M05t7Q6LbFs
Swiss Maps in Go - Bryan Boreham
YouTube video by GopherCon UK
youtu.be
September 22, 2025 at 11:11 AM
go-perf.dev
Making `DecodeRuneInString` is inlinable #golang

github.com/golang/go/is...
August 28, 2025 at 11:07 AM
go-perf.dev
proposal: simd: architecture-specific SIMD intrinsics under a GOEXPERIMENT #golang

github.com/golang/go/is...
proposal: simd: architecture-specific SIMD intrinsics under a GOEXPERIMENT · Issue #73787 · golang/go
Update (08/20/2025): A preliminary implementation of AMD64 low-level SIMD package is being developed on the dev.simd branch. You're welcome to check it out and try it with your use cases. Feedback ...
github.com
August 27, 2025 at 7:04 PM
go-perf.dev
🔥🔥🔥 #golang github.com/golang/go/is...
August 20, 2025 at 7:12 PM
Reposted by 🇺🇦 Go performance channel
golang.org
“Container-aware GOMAXPROCS” by Michael Pratt and Carlos Amedee — https://go.dev/blog/container-aware-gomaxprocs

#golang
August 20, 2025 at 3:37 PM
Reposted by 🇺🇦 Go performance channel
golang.org
🎊 Go 1.25.0 is released!

📝 Release notes: https://go.dev/doc/go1.25

⬇️ Download: https://go.dev/dl/#go1.25.0

#golang
$ go install golang.org/dl/go1.25.0@latest $ go1.25.0 download Downloaded 0.0% ( 0 / 58130695 bytes) ... Downloaded 50.0% (29065347 / 58130695 bytes) ... Downloaded 100.0% (58130695 / 58130695 bytes) Unpacking go1.25.0.freebsd-arm.tar.gz ... Success. You may now run 'go1.25.0' $ go1.25.0 version go version go1.25.0 freebsd/arm
August 12, 2025 at 9:58 PM
go-perf.dev
How Go 1.24's Swiss Tables saved us hundreds of gigabytes
#golang www.datadoghq.com/blog/enginee...
How Go 1.24's Swiss Tables saved us hundreds of gigabytes | Datadog
Go 1.24's Swiss Tables cut our map memory usage by up to 70% in high-traffic workloads. Here's how we profiled the savings and improved performance.
www.datadoghq.com
July 25, 2025 at 12:28 PM
go-perf.dev
How to store Go pointers from assembly mazzo.li/posts/go-asm... #golang
How to store Go pointers from assembly
The standard Go toolchain comes with an assembler out of the box. Said assembler is highly idiosyncratic, using syntax inherited from Plan 9 and choosing its own names for platform-specific instructio...
mazzo.li
June 23, 2025 at 3:03 PM
go-perf.dev
Assert your #golang code is inlined and bounds-check eliminated

github.com/jordanlewis/...
GitHub - jordanlewis/gcassert: Assert your Go code is inlined and bounds-check eliminated
Assert your Go code is inlined and bounds-check eliminated - jordanlewis/gcassert
github.com
May 7, 2025 at 7:52 AM
go-perf.dev
Golang sync.Pool is not a silver bullet

wundergraph.com/blog/golang-... #golang
Golang sync.Pool is not a silver bullet
A deep dive into Go's sync.Pool, its benefits, pitfalls, and when to use it (or not)
wundergraph.com
April 12, 2025 at 7:10 AM
go-perf.dev
proposal: runtime: CPU limit-aware GOMAXPROCS default #golang

github.com/golang/go/is... by @prattmic.com
proposal: runtime: CPU limit-aware GOMAXPROCS default · Issue #73193 · golang/go
Overview Change the Go runtime on Linux to use CPU cgroup quota limits to set the default value of GOMAXPROCS. This is a concrete proposal for the ideas discussed in #33803. I've included a lot of ...
github.com
April 7, 2025 at 5:49 AM
go-perf.dev
More predictable benchmarking with testing.B.Loop #golang go.dev/blog/testing...
More predictable benchmarking with testing.B.Loop - The Go Programming Language
Better benchmark looping in Go 1.24.
go.dev
April 2, 2025 at 6:52 PM
go-perf.dev
🎊 Go 1.24.2 and 1.23.8 are released!

🔐 Security: Includes a security fix for net/http (CVE-2025-22871).

📣 Announcement: groups.google.com/g/golang-ann...

📦 Download: go.dev/dl/#go1.24.2

#golang
[security] Go 1.24.2 and Go 1.23.8 are released
groups.google.com
April 1, 2025 at 7:34 PM
Reposted by 🇺🇦 Go performance channel
deleplace.bsky.social
This is important: is the new Go 1.24 benchmark loop syntax making my code 7x slower, and why?
#golang
func mult(a, b float64) float64 { return a * b } func Benchmark1(b *testing.B) { for i := 0; i < b.N; i++ { mult(3.0, 5.0) } } func Benchmark2(b *testing.B) { for range b.N { mult(3.0, 5.0) } } func Benchmark3(b *testing.B) { for b.Loop() { mult(3.0, 5.0) } }
March 21, 2025 at 1:15 PM
go-perf.dev
Diagnostics wiki go.dev/doc/diagnost... #golang
Diagnostics - The Go Programming Language
go.dev
March 22, 2025 at 8:41 AM
go-perf.dev
Faster interpreters in Go: Catching up with C++

planetscale.com/blog/faster-... #golang
Faster interpreters in Go: Catching up with C++ — PlanetScale
A novel technique for implementing dynamic language interpreters in Go, applied to the Vitess SQL evaluation engine
planetscale.com
March 20, 2025 at 8:37 PM
Reposted by 🇺🇦 Go performance channel
jorropo.net
Awesome work by @thepudds.bsky.social github.com/golang/go/is...

Compiling the typescript compiler went from 70s to 30s !
cmd/compile: slow escape analysis in large package in the typescript compiler · Issue #72815 · golang/go
Go version go version go1.24.1 linux/amd64 Output of go env in your module/workspace: AR='ar' CC='gcc' CGO_CFLAGS='-O2 -g' CGO_CPPFLAGS='' CGO_CXXFLAGS='-O2 -g' CGO_ENABLED='1' CGO_FFLAGS='-O2 -g' ...
github.com
March 13, 2025 at 10:44 AM
go-perf.dev
Someone on the Go team decided to take a "quick stab" at fixing a small bug in Go's escape analysis, resulting in a 5x increase in typescript performance.

Why Go you ask? #golang

x.com/PreslavMihay...

link to the issue github.com/golang/go/is...
Pres Mihaylov on X: "Someone on the Go team decided to take a "quick stab" at fixing a small bug in Go's escape analysis, resulting in a 5x increase in typescript performance. Why Go you ask? https://t.co/ez7sD590zg" / X
Someone on the Go team decided to take a "quick stab" at fixing a small bug in Go's escape analysis, resulting in a 5x increase in typescript performance. Why Go you ask? https://t.co/ez7sD590zg
x.com
March 14, 2025 at 4:28 PM
go-perf.dev
From unique to cleanups and weak: new low-level tools for efficiency

go.dev/blog/cleanup... #golang
From unique to cleanups and weak: new low-level tools for efficiency - The Go Programming Language
Weak pointers and better finalization in Go 1.24.
go.dev
March 7, 2025 at 7:51 AM
go-perf.dev
🎉 Go 1.24.1 and 1.23.7 are released!

🔐 Security: Includes a security fix for net/http (CVE-2025-22870)

🗣 Announcement: groups.google.com/g/golang-ann...

🗃 Download: go.dev/dl/#go1.24.1

#golang
[security] Go 1.24.1 and Go 1.23.7 are released
groups.google.com
March 4, 2025 at 8:44 PM
go-perf.dev
"Faster Go maps with Swiss Tables" by Michael Pratt — go.dev/blog/swissta...

#golang
Faster Go maps with Swiss Tables - The Go Programming Language
Go 1.24 improves map performance with a brand new map implementation
go.dev
March 4, 2025 at 8:43 PM
go-perf.dev
cmd/compile: poor spill decisions making code 14% slower

github.com/golang/go/is...

#golang
cmd/compile: poor spill decisions making code 14% slower · Issue #71868 · golang/go
At commit 266b0cf from earlier today (but also with some older toolchains, not claiming the behavior is new), suppose you: GOOS=linux GOARCH=amd64 go test -c math/big go tool objdump -s big.nat.sca...
github.com
February 22, 2025 at 10:56 PM
go-perf.dev
🧨 Go 1.24.0 is released!

📝 Release notes: go.dev/doc/go1.24

⬇️ Download: go.dev/dl/#go1.24.0

#golang
Go 1.24 Release Notes - The Go Programming Language
go.dev
February 12, 2025 at 7:26 AM