🇺🇦 Go performance channel

Nice comment by Brian C. Mills regarding new #golang sync.Map methods https://github.com/golang/go/issues/51972#issuecomment-1315912196

3.66K viewsOleg Kovalov, 11:29

And by the way... @go_perf
is also available here https://mastodon.cloud/@go_perf and here https://twitter.com/go_perf

mastodon.cloud

🇺🇦 Go performance channel (@[email protected])

152 Posts, 14 Following, 239 Followers · #golang performance, runtime, concurrency. Talks, blogposts and open source projects for #gophers (mail: [email protected]). Not affiliated with @golang team.

4K viewsOleg Kovalov, 13:22

🇺🇦 Go performance channel

Building a custom code search index in #golang for searchcode.com

As always @boyter post are amazing (thanks for doing & writing this!)

https://boyter.org/posts/how-i-built-my-own-index-for-searchcode/

3.5K viewsOleg Kovalov, 11:57

🇺🇦 Go performance channel

A GC-friendly #golang interning cache.

> This change will be in Go 1.20 and it has zero exposed APIs: you just upgrade Go and every application that opens multiple TLS connections will be automagically a little lighter and faster. ✨

https://words.filippo.io/dispatches/certificate-interning/ by @FiloSottile

Filippo Valsorda

A GC-Friendly Go Interning Cache

Go 1.20 is adding an interning cache for reused certificates. The entries are reference-counted with the help of the garbage collector and finalizers.

1.42K viewsOleg Kovalov, 12:25

🇺🇦 Go performance channel

A GC-friendly #golang interning cache. > This change will be in Go 1.20 and it has zero exposed APIs: you just upgrade Go and every application that opens multiple TLS connections will be automagically a little lighter and faster. ✨ https://words.filipp…

Nice https://go-review.googlesource.com/c/go/+/274234 thanks @rolandshoemaker

1.67K viewsOleg Kovalov, 12:31

🇺🇦 Go performance channel

Large-Scale, Semi-Automated #golang Garbage Collection Tuning at @UberOpenSource @P99CONF

https://www.p99conf.io/session/large-scale-semi-automated-go-garbage-collection-tuning-at-uber/

P99 CONF

Large-Scale, Semi-Automated Go Garbage Collection Tuning at Uber

Uber’s Cristian Velazquez talks about tuning garbage collection for Go to scale applications across 70,00 cores to maintain 30 mission-critical services.

2.22K viewsOleg Kovalov, 15:27

🇺🇦 Go performance channel

🎊 Go 1.20 Release Candidate 1 is released!

🏃‍♂️ Run it in dev! Run it in prod! File bugs! https://go.dev/issue/new

📣 Announcement: https://groups.google.com/g/golang-announce/c/iqUo0Spdl9I

📦 Download: https://go.dev/dl/#go1.20rc1

#golang (via https://twitter.com/golang/status/1600612450197446675)

GitHub

GitHub is where people build software. More than 150 million people use GitHub to discover, fork, and contribute to over 420 million projects.

4.24K viewsOleg Kovalov, 08:49

🇺🇦 Go performance channel

🎊 Go 1.20 Release Candidate 1 is released! 🏃‍♂️ Run it in dev! Run it in prod! File bugs! https://go.dev/issue/new 📣 Announcement: https://groups.google.com/g/golang-announce/c/iqUo0Spdl9I 📦 Download: https://go.dev/dl/#go1.20rc1 #golang (via https://…

The runtime now has experimental support for memory-safe arena allocation that makes it possible to eagerly free memory in bulk. It has the potential to improve CPU performance by up to 15% in memory-allocation-heavy applications. (c)

🚀 #golang

1.61K viewsOleg Kovalov, 08:52

🇺🇦 Go performance channel

🎊 Go 1.20 Release Candidate 1 is released! 🏃‍♂️ Run it in dev! Run it in prod! File bugs! https://go.dev/issue/new 📣 Announcement: https://groups.google.com/g/golang-announce/c/iqUo0Spdl9I 📦 Download: https://go.dev/dl/#go1.20rc1 #golang (via https://…

#golang 1.20 adds preview support for profile-guided optimization (PGO).

1.69K viewsOleg Kovalov, 08:53

🇺🇦 Go performance channel

#golang runtime: diagnostics improvements tracking issue

Great initiative by twitter.com/mknyswe

https://github.com/golang/go/issues/57175

GitHub

runtime: performance and diagnostics meeting notes · Issue #57175 · golang/go

Since 2022, members of the Go team and the Go community have met every two weeks to discuss Go runtime topics. Until 2025 the focus was mainly on diagnostics, but we've also delved into plenty ...

2.04K viewsOleg Kovalov, 18:52

🇺🇦 Go performance channel

CockroachDB:
We took a close look at how the Go scheduler can affect latencies, and then tried taming it by using control theory and patching the runtime.

💻 Read on: https://cockroa.ch/3WkgG5L

#golang

https://twitter.com/CockroachDB/status/1603482942499594240

Cockroach Labs

Rubbing control theory on the Go scheduler

How CockroachDB uses control theory, studies CPU scheduler latencies, builds forms of cooperative scheduling, and patches the Go runtime.

1.81K viewsOleg Kovalov, edited 14:29

🇺🇦 Go performance channel

💡 Go 1.19 now includes support for a soft memory limit!

Michael Knyszek tells us what this is and how you can use it at Go Day 2022 → goo.gle/3FxDFnl

YouTube

How to avoid out-of-memory conditions in Go

In this session, Michael Knyszek discusses the new soft memory limit feature coming in Go 1.19. Watch along and learn how you can avoid out-of-memory conditions in production and improve your application's resource economy.

Speaker: Michael Knyszek

Original…

2.48K viewsOleg Kovalov, 19:13

🇺🇦 Go performance channel

Faster #golang code by being mindful of memory (by @ArthurBusser)

https://f4t.dev/software/go-performance-memory/

f4t.dev

Faster Go code by being mindful of memory

Advent of Code 2022, day 6

2.31K viewsOleg Kovalov, 08:51

🇺🇦 Go performance channel

Go runtime vs CFS quota

https://vladimir.varank.in/notes/2023/01/go-runtime-vs-cfs-quota/

vladimir.varank.in

Go runtime vs CFS quota

The Go runtime isn't aware if it runs inside a container under the resource constraints (CPU or memory). A mismatch in what the application thinks is has, and what the OS allows to use, can lead to the poor performance of the application after the unexpected…

1.99K viewsOleg Kovalov, 11:47

🇺🇦 Go performance channel

Memory arena part explained by #chatgpt is ❤️‍🔥 Thanks @carlmjohnson

https://blog.carlmjohnson.net/post/2023/golang-120-arenas-errors-responsecontroller/

blog.carlana.net

What’s New in Go 1.20, Part II: Major Standard Library Changes

The second part of a three part look at new features in Go 1.20.

1.79K viewsOleg Kovalov, 09:58

🇺🇦 Go performance channel

#golang team plans for 1st half 2023: dropping non-unified IR and removing associated GOEXPERIMENT, next steps for PGO, revamping the inliner, core health CI/CD tasks, batched write barriers, <...> long-term RAM efficiency efforts. https://github.com/golang/go/issues/43930#issuecomment-1386010267

GitHub

Go compiler and runtime meeting notes · Issue #43930 · golang/go

Google's Go compiler and runtime team meets periodically (roughly weekly) to discuss ongoing development of the compiler and runtime. While not open to the public, there's been desire by th...

1.97K viewsOleg Kovalov, 21:32

🇺🇦 Go performance channel

Reducing #golang Execution Tracer Overhead With Frame Pointer Unwinding (by @felixge )

https://blog.felixge.de/reducing-gos-execution-tracer-overhead-with-frame-pointer-unwinding/

Felix Geisendörfer

Reducing Go Execution Tracer Overhead With Frame Pointer Unwinding

Learn how frame pointer unwinding could significantly reduce the CPU overhead of the Go execution tracer.

1.69K viewsOleg Kovalov, 15:40

🇺🇦 Go performance channel

Go 1.20 released https://twitter.com/golang/status/1620875197569187840

1.96K viewsOleg Kovalov, edited 20:06

🇺🇦 Go performance channel

In #Golang 1.20 the Go team introduced an experimental new method of memory management called Go arenas.

In this blog post we show how we combined continuous profiling with memory arenas to improve performance of one of our cloud services by ~8% !

https://pyroscope.io/blog/go-1-20-memory-arenas/

pyroscope.io

Go 1.20 Experiment: Memory Arenas vs Traditional Memory Management | Open Source Continuous Profiling Platform

Go 1.20 Experiment with Memory Arenas

4.53K viewsOleg Kovalov, 12:07