siegers

Java Is Fast. Your Code Might Not Be

https://jvogel.me/posts/2026/java-is-fast-your-code-might-not-be/

Java Is Fast. Your Code Might Not Be. | Jonathan Vogel

Fixing common Java anti-patterns took an app from 1,198ms to 239ms. Eight patterns that compile fine and pass code review but silently drain CPU and balloon heap, with benchmarks and code fixes for each

Mar 20 at 1:43pmWeb
Show threadr_leeMar 20
How about no.
Show threadbearjawsMar 20

JavaScript can be fast too, it's just the ecosystem and decisions devs make that slow it down.

Same for Java, I have yet to in my entire career see enterprise Java be performant and not memory intensive.

At the end of the day, if you care about performance you will use a language better suited to that.