16 points lalitmaganti 4 hours ago 6 comments
anaqin 44 minutes ago | parent
Good write up! I was hoping it was going to conclude with the author getting buns zig build way faster than Rusts but a good deep dive nevertheless
lalitmaganti 19 minutes ago | parent
Having spent ~3 weeks of evenings and weekends on this, I was a bit burned out to keep trying to optimize especially because all of this code is just a dead end anyway...
The fix seemed to be to split up Bun's Zig module into ~100 pieces just like they've done on Rust but how representative that would have been on anything Bun might of shipped is very much in question!
rahkiin 7 minutes ago | parent
Can you force a non-parallel build of those rust crates to make the comparison fairer?
flimflamm 28 minutes ago | parent
It would be interesting to see what would be good input for LLMs to do the optimizations / trials on that automatically. Is the visual representation best or something else?
lalitmaganti 26 minutes ago | parent
It's actually trivially easy to add a "automated report" feature to buildprof due to its architecture (just a few SQL queries on top of Perfetto's trace processor). And I'm sure AI could hill climb the build time based on this.
But I still think the visual view is invaluable for human understanding and for the "why is this even happening" problems which I think AI is still bad at seeing.
Conlectus 17 minutes ago | parent
This is just how hacker news is now, huh?
“I did this cool useful thing”
“Great! Please describe how I can get a machine to replace you.”