🇺🇦 Go performance channel
@go_perf
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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: [email protected] / @olegkovalov)
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🇺🇦 Go performance channel
1.5K subscribers
🇺🇦 Go performance channel
🎊 Go 1.24.2 and 1.23.8 are released!

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

📣 Announcement: https://groups.google.com/g/golang-announce/c/Y2uBTVKjBQk/m/cs_6qIK5BAAJ

📦 Download: https://go.dev/dl/#go1.24.2

#golang
go.dev
All releases - The Go Programming Language
1.62K viewsOleg, 
🇺🇦 Go performance channel
More predictable benchmarking with testing.B.Loop

https://go.dev/blog/testing-b-loop
go.dev
More predictable benchmarking with testing.B.Loop - The Go Programming Language
Better benchmark looping in Go 1.24.
❤6
1.88K viewsOleg, 
🇺🇦 Go performance channel
proposal: runtime: CPU limit-aware GOMAXPROCS default #golang

https://github.com/golang/go/issues/73193 by @prattmic.com
GitHub
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...
❤20
1.94K viewsOleg, 
🇺🇦 Go performance channel
Golang sync.Pool is not a silver bullet

https://wundergraph.com/blog/golang-sync-pool #golang
WunderGraph
Golang sync.Pool is not a silver bullet
Understand how Go’s sync.Pool affects memory usage in high-throughput systems. Learn when pooling helps, when it hurts, and how to use it safely for performance optimization.
❤10
2.07K viewsOleg, 
🇺🇦 Go performance channel
Assert your #golang code is inlined and bounds-check eliminated

https://github.com/jordanlewis/gcassert
GitHub
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
❤9
2.02K viewsOleg, 
🇺🇦 Go performance channel
https://turso.tech/blog/we-rewrote-large-parts-of-our-api-in-go
turso.tech
We rewrote large parts of our API in Go using AI: we are now ready to handle one billion databases
❤4
2.08K viewsOleg, 
🇺🇦 Go performance channel
How to store Go pointers from assembly https://mazzo.li/posts/go-asm-pointers.html
mazzo.li
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 instructions and registers. But it's great to have it readily available.…
❤1
1.75K viewsOleg, 
🇺🇦 Go performance channel
How Go 1.24's Swiss Tables saved us hundreds of gigabytes
#golang https://www.datadoghq.com/blog/engineering/go-swiss-tables/
Datadog
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.
❤11
1.47K viewsOleg, 
🇺🇦 Go performance channel
https://go.dev/doc/go1.25
go.dev
Go 1.25 Release Notes - The Go Programming Language
❤23
1.03K viewsOleg, 
🇺🇦 Go performance channel
https://go.dev/blog/container-aware-gomaxprocs
go.dev
Container-aware GOMAXPROCS - The Go Programming Language
New GOMAXPROCS defaults in Go 1.25 improve behavior in containers.
❤5
534 viewsOleg, 
🇺🇦 Go performance channel
🔥🔥🔥 #golang https://github.com/golang/go/issues/43930#issuecomment-3201879413
793 viewsOleg,