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Show HN: Go Plan9 Memo

(pehringer.info)
302 points pehringer | 1 comments | 18 Oct 24 14:36 UTC | HN request time: 0.198s | source

A quick dive into the Plan9 assembly I picked up while developing my SIMD package for Go, and how it led to a 450% performance boost in calculations.
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lexh ◴[18 Oct 24 15:20 UTC] No.41880231[source]▶
A bit over my head, but I enjoyed the way the writing brings us along for the ride.

This can’t be the first pass someone has made at something like this, right? There must be literal dozens of SIMD thirsty Gophers around. Would a more common pattern be to use CGO?

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1. chrchang523 ◴[18 Oct 24 16:48 UTC] No.41881167[source]▶
The problem with cgo is the high function-call overhead; you only want to use it for fairly big chunks of work. Calling an assembly function from Go is a lot cheaper.

https://pkg.go.dev/github.com/grailbio/base/simd has some work I’ve done in this vein.