What you write isn’t what runs — and that’s a good thing. Harshitha Popuri & @gireeshpunam follow a #Java method through the #JIT, showing how profiling unlocks huge speedups.

Stop guessing. Learn the optimization plot: https://javapro.io/2026/02/18/the-runtime-illusion-what-java-really-runs/

#JVM #JITCompiler @IBMDeveloper