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Go Optimization Guide

(goperf.dev)
480 points jedeusus | 3 comments | 31 Mar 25 20:29 UTC | HN request time: 0.466s | source
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neillyons ◴[01 Apr 25 05:33 UTC] No.43543171[source]▶
Curious to know what people are building where you need to optimise like this? eg Struct Field Alignment https://goperf.dev/01-common-patterns/fields-alignment/#avoi...
replies(2): >>43543293 #>>43543824 #
1. kubb ◴[01 Apr 25 07:24 UTC] No.43543824[source]▶
Something that shouldn’t be written in a GC language.
replies(2): >>43544207 #>>43544263 #
2. piokoch ◴[01 Apr 25 08:28 UTC] No.43544207[source]▶
I don't think GC has anything to do here, doing manual memory allocation we might hit the same problem.
3. Cthulhu_ ◴[01 Apr 25 08:34 UTC] No.43544263[source]▶
GC is not relevant in this case, it's about whether you can make structs fit in cache lines and CPU registers. Mechanical sympathy is the googleable phrase. GC is a few layers further away.