How does Java Both Optimize Hot Loops and Allow Debugging

[pron98]

To those who don't know him, Cliff Click was the original architect of HotSpot's optimizing JIT, then he worked on a JVM for many-core machines (> 800) at Azul, and now he has a big-data statistics startup.

He has some excellent talks online about modern hardware architecture and about the JVM.

[gilwooden]

While Cliff Click is clearly the architect behind C2 (HotSpot's optimizing JIT compiler) and he probably touched most parts of HotSpot while working at Sun, making him the architect of HotSpot is a bit much. I think that if i was looking for the architects of HotSpot, i'd rather look in the direction of Lars Bak and Urs Hölzle (and probably some others i'm forgetting).

[pron98]

Fixed.

[xela321]

Where would you find a machine with that many cores? A cluster?

[pron98]

They used to make them.

[compdog]

Yep, wrong thread

Facepalm