0xc1a35

Performance Improvements in JDK 25 Java is constantly evolving with ever increasing performance. JDK 25 comes with significant performance improvements compared to previous versions including scoped values, improved GCs, lots of compil...

@pminborg.bsky.social and I wrote a bit about some of the many performance improvements in JDK 25: inside.java/2025/10/20/j...

tl;dr: upgrade to JDK 25 and add -XX:+UseCompactObjectHeaders

Okidoki!

-- femte frikändes

Trådar som aldrig tar slut - kan de vara dödsfällor?

Vet inte vilket som vore värst, faktiskt

"Agnes slickar sina barn. Overkligt!"

OH: "WhiskeyLeaks"

Going to be doing some on-and-off between work and parental leave in the coming months. A good time to pick up a book or two and do some gardening, maybe. Or I'll just be trying to find time for naps. We'll see!

*shorting intensifies*

Right there on the "Topic of Cancer"

?

Which JDK are you baselined on - 17?

Maybe ask in leyden-dev anyway. The developers responsible for dynamic CDS are all there and might now if there's any route to enhance this older feature without interfering with the leyden/AOTCache work

You mean the AOTCache...? :) openjdk.org/jeps/483

Are these questions about the design/implementation/bugs aimed at the developers? leyden-dev OpenJDK mailing list might be a good place.

Maybe @shipilev.bsky.social has a better perspective as a non-Oracle contributor?

Have you noticed he never says anything bad about actual tyrannical governments?

Bra skrivet!

Screenshot of a small factory, mining rigs and alien structures in the distance.

Having a surprisingly good time playing Satisfactory.

Could probably swoop around and adding nice little catwalks to my factory for days. No progress. Only vibes.

Try mvn clean

Midsommarregn, Höstgryning, osv..

This doesn't test with compressed object heders, right? I actually haven't checked if these features play well together.

One of us! One of us!

It's a bit sad I know at least a couple that could fit this description.

"This is for Toto..."

Right in front of my mvn clean install?

I tried to post something not related to work. Oh well! 😅

Cappuccino with imperfect latte art, yet good enough for the poster to feel a faint sense of pride and accomplishment. Wait, an alt text can be 2000 characters? Wow.. so many possibilities! 😇

Getting there..

Hello!

A bit surprised this was changed (in premain), though I guess in high-trust environments ARM=0 might be a reasonable tuning option.

Without these CDS improvements coming in late we'd actually be looking at a small regression in JDK 24 - happy to see (some of) our trends turning green in the latest build!

Does "other whistles" include your parallel relocation PR?

YouTube video by Java Rethinking Java String Concatenation #JVMLS

If you follow me I might post whenever I deliver nerdy talks such as www.youtube.com/watch?v=tgX3...