🇺🇦 Go performance channel

net: add UDPMsg, (*UDPConn).ReadUDPMsgs, (*UDPConn).WriteUDPMsgs is accepted!

Faster UDP is not so far away! (#golang 1.20 🤞)

https://github.com/golang/go/issues/45886

GitHub

net: add UDPMsg, (*UDPConn).ReadUDPMsgs, (*UDPConn).WriteUDPMsgs · Issue #45886 · golang/go

(co-written with @neild) Linux has recvmmsg to read multiple UDP packets from the kernel at once. There is no Recvmmsg wrapper func in golang.org/x/sys/unix. That's easy enough to add, but it&#...

1.35K viewsOleg Kovalov, 21:50

🇺🇦 Go performance channel

net: add UDPMsg, (*UDPConn).ReadUDPMsgs, (*UDPConn).WriteUDPMsgs is accepted! Faster UDP is not so far away! (#golang 1.20 🤞) https://github.com/golang/go/issues/45886

+ @Cloudflare blog post https://blog.cloudflare.com/accelerating-udp-packet-transmission-for-quic/

The Cloudflare Blog

Accelerating UDP packet transmission for QUIC

Significant work has gone into optimizing TCP, UDP hasn't received as much love, putting QUIC at a disadvantage. Let's explore a few tricks that help mitigate this.

1.58K viewsOleg Kovalov, 21:51

🇺🇦 Go performance channel

https://twitter.com/bboreham/status/1559907905578622977

Aaaaaaand the video #golang @gopherconuk https://www.youtube.com/watch?v=rRtihWOcaLI

YouTube

Obscure Go Optimisations - Bryan Boreham

Did you know that Go will sometimes embed a type-conversion silently into your program? And that conversion, especially if it requires a memory allocation, may be slowing things down by 20% or more? Come with us as Bryan shows how to look for these issues…

2.2K viewsOleg Kovalov, 19:43

🇺🇦 Go performance channel

One more nice #golang JSON patch and 5% speed up. Sometimes it's enough just to read the code and remove a few lines.

by @mvdan_ https://go-review.googlesource.com/c/go/+/437558/

2.26K viewsOleg Kovalov, 21:14

🇺🇦 Go performance channel

Hey friends, what #golang community Youtube channels do you know?

I know @LondonGophers (https://www.youtube.com/c/LondonGophers/videos) can you share more? Thanks in advance!

1.86K viewsOleg Kovalov, 10:08

🇺🇦 Go performance channel

A New ScyllaDB #golang Driver: Faster Than GoCQL and Its Rust Counterpart

https://www.scylladb.com/2022/10/12/a-new-scylladb-go-driver-faster-than-gocql-and-its-rust-counterpart/

ScyllaDB

A New ScyllaDB Go Driver: Faster Than GoCQL and Its Rust Counterpart - ScyllaDB

How we built a new Go ScyllaDB driver that's almost 4x faster than its GoCQL predecessor and 2X faster than its Rust counterpart.

1.83K viewsOleg Kovalov, 21:28

🇺🇦 Go performance channel

arena: add experimental arena package https://go-review.googlesource.com/c/go/+/423361

1.86K viewsOleg Kovalov, 06:19

🇺🇦 Go performance channel

arena: add experimental arena package https://go-review.googlesource.com/c/go/+/423361

By the way there are other patches https://github.com/golang/go/issues/51317#issuecomment-1279675552 #golang

GitHub

proposal: arena: new package providing memory arenas · Issue #51317 · golang/go

Note, 2023-01-17. This proposal is on hold indefinitely due to serious API concerns. The GOEXPERIMENT=arena code may be changed incompatibly or removed at any time, and we do not recommend its use ...

2.2K viewsOleg Kovalov, 07:58

🇺🇦 Go performance channel

#golang Performance Case Studies
https://www.dolthub.com/blog/2022-10-14-golang-performance-case-studies/ by @DoltHub

Dolthub

Go Performance Case Studies

Blog for DoltHub, a website hosting databases made with Dolt, an open-source version-controlled SQL database with Git-like semantics.

2.43K viewsOleg Kovalov, 22:53

🇺🇦 Go performance channel

How we Eliminated 99% of gVisor Networking Memory Allocations with Enhanced Buffer Pooling

https://gvisor.dev/blog/2022/10/24/buffer-pooling/ #golang

gvisor.dev

How we Eliminated 99% of gVisor Networking Memory Allocations with Enhanced Buffer Pooling

3.3K viewsOleg Kovalov, 16:57

🇺🇦 Go performance channel

Nice crypto #golang patch: Update BoringCrypto, support ARM64, strip unneeded parts in binary (10mb -> 2mb)

https://go-review.googlesource.com/c/go/+/423362

1.77K viewsOleg Kovalov, 07:58

🇺🇦 Go performance channel

https://go.dev/blog/13years

go.dev

Thirteen Years of Go - The Go Programming Language

Happy Birthday, Go!

1.8K viewsOleg Kovalov, 17:37

🇺🇦 Go performance channel

Making a #golang program 42% faster with a one character change

https://hmarr.com/blog/go-allocation-hunting/

Hmarr

Making a Go program run 1.7x faster with a one character change • Harry Marr

Harry Marr — Member of Technical Staff at Anthropic. Co-founded Dependabot, previously at GitHub, Monzo, and GoCardless.

3.75K viewsOleg Kovalov, 20:02

🇺🇦 Go performance channel

cmd/compile: handle simple inlined calls in staticinit

For the cmd/go binary, this CL cuts the number of init-time allocations from about 1920 to about 1620 (a 15% reduction). #golang

https://github.com/golang/go/commit/b1678e508bf04b32fcd8153d09c39ff25b51d287

GitHub

cmd/compile: handle simple inlined calls in staticinit · golang/go@b1678e5

Global variable initializers like

var myErr error = &myError{"msg"}

have been converted to statically initialized data
from the earliest days of Go: there is no init-ti...

1.54K viewsOleg Kovalov, 07:56

🇺🇦 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

🇺🇦 Go performance channel

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.

4.01K 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/

3.51K 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