Insignia Jeode
Java virtual machine (JVM)
- 100% Compatible with Sun's Personal Java and Embedded Java specficiations
- Insignia was the first official Sun licensee (March 1999)
- Typical Java performance on resource-constrained platforms
- Normal interpreter is slow
- Ahead of time (AOT) compilers produce non-portable code and
cannot handle dynamic class loading
- Just-In-Time (JIT) needs lots of memory and have no notion of
memory bounding
- Jeode:
- Small footprint (~100KB RAM)
- Dynamic Adaptive Compiler (up to 12 times faster than
interpreter-only JVMs):
- Frequently-used code paths are compiled into native code
- Rarely-used code paths remain interpreted
- Can run from ROM
- Can bound RAM
- Preemptible garbage collector (yields when required)
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