(kmaliszewski9.github.io)

261 points kmaliszewski | 1 comments | 07 Dec 25 15:08 UTC | HN request time: 0s | source

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jiehong ◴[07 Dec 25 18:17 UTC] No.46183745[source]▶

> After upgrading the library, performance and CPU characteristics on Scala 3 became indistinguishable from Scala 2.13.

Checking the bug mentioned, it was fixed in 2022.

So, I’m wondering how one would upgrade to scala 3, while keeping old version of libraries?

Keeping updated libraries is a good practice (even mandatory if you get audits like PCI-DSS).

That part puzzled me more than the rest.

1. fn-mote ◴[07 Dec 25 19:20 UTC] No.46184252[source]▶

> Checking the bug mentioned, it was fixed in 2022.

I was considerably less impressed by the reporting when I finally found out the culprit.

Sure it was “Scala 3” … but not really.

It was an interaction of factors and I don’t think it would take away from the story to acknowledge that up front.

Scala 3 slowed us down?