Crack propagation applet

Slide 14

In Netscape's and Sun's JVM implementations, objects carry 24 bytes of overhead. Arrays of Doubles (with a capital D) are expensive.
Synchronized method calls are slow; 30 milliseconds on a power 601 AIX machine with IBM's just-in-time compiler.
Allocating and deallocating space for objects is slow.
JDK 1.0.* requires object allocation for string conversion: Slow!
The good news is that object orientation can hide ugly (but fast) implementations.
Graphic speed varies widely across platforms: of platforms we've tried Linux/X Windows is fastest, then Windows 95 and AIX/X Windows, the Macintosh is slowest.