Embedded Java Virtual Machine
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- ÃÖ±Ù ÀÓº£µðµå ½Ã½ºÅÛÀÇ ºÎ»ó°ú ÇÔ²² ÀÓº£µðµå ÀÚ¹Ù¿¡ ´ëÇÏ¿© ±¹³»¿Ü ½Ã¼±ÀÌ ¸ð¾ÆÁö°í ÀÖ½À´Ï´Ù. ÀÓº£µðµå ÀÚ¹Ù´Â °¢°¢ »ç¿ëȯ°æÀÌ ´Ù¾çÇÏ´Ù´Â Á¡°ú ÀÏ¹Ý ±â±â¿¡ ÀÎÅÍ³Ý Á¢¼Ó¼º(connectivity)À» ±¸ÇöÇÒ ¼ö ÀÖ´Ù´Â Á¡¿¡¼ ¾ÕÀ¸·Î Àü°³µÉ ÀÓº£µðµå½Ã½ºÅÛ ½Ã´ëÀÇ Çٽɱâ¼ú·Î °¢±¤¹Þ°í ÀÖ½À´Ï´Ù.
- ÀÚ¹Ù´Â ÀÏÁ¾ÀÇ ÀÎÅÍ³Ý¿ë ¾ð¾î ³»Áö´Â ³×Æ®¿öÅ©½Ã½ºÅÛ°ú °ü·ÃÇÑ Ç÷§Æû Á¤µµ·Î ¿©°ÜÁ® ¿Ô½À´Ï´Ù¸¸, ÀÚ¹Ù´Â º»·¡ ÀÓº£µðµå ½Ã½ºÅÛ¿¡¼ ź»ýÇß°í Æ¯È÷ ÃÖ±Ù µé¾î¼´Â ´Ù¾çÇÑ Çϵå¿þ¾î À̽ļº ¶§¹®¿¡ ÀÓº£µðµå ¿î¿ëü°èÀÇ ´ë¾ÈÀ¸·Î ºÎ»óÇϰí ÀÖ´Ù. ÀÌ·¯ÇÑ ½ÃÀå ¿ä±¸¿¡ ´ëÀÀÇÏ¿© IBMÀº ÇÚµåÆù, PDA, ÅÚ·¹¸Åƽ½º, Ȩ³×Æ®¿öÅ· µî ´Ù¾çÇÑ Ç÷§Æû¿¡ Àû¿ëÇÒ ¼ö ÀÖ´Â ÀÓº£µðµå JVM (Java Virtual Machine)ÀÎ IBM J9À» Á¦°øÇϰí ÀÖ½À´Ï´Ù.
- IBM J9 ±¸¼º ¿ä¼Ò
- Interpreter (optional AOT / JIT)
- Class loader (s)
- Garbage collector & memory °ü¸®
- Scheduler / Thread services
- Device interfaces & porting layers
- Security infrastructure
- Tool interfaces

- IBM J9 Ư¡
- ÀÓº£µðµå ½Ã½ºÅÛÀ» À§ÇÑ bottom-up ¼³°è
- ÃÖ½ÅÀÇ JDK 3.1 ½ºÆå ¸¸Á·
- Device memory configuration aware
- Memory segments (ROM, RAM, fast, slow, removable)
- Execute in place (XIP) capability (using JXE-files, in ROM)
- ¡°instant on¡±
- Fastest interpreter
- Mixed mode - interpreter, AOT, JIT
- NEW micro - JIT, AOT for ARM (Vespa) with Cinquecento, Testarossa
- Garbage Collector
- Accurate, incremental, compacting
- Real time ready
- Scalable
- Single VM for the full range of Java requirements
- Built with pluggable components
- Dynamically linkable for maintenance
- Statically linkable for size
- Tightly integrated with the RTOS
- Uses native thread where available
- Acts like a native application
- Use native widgets
- Native look and feel
- Resource management - security
- Memory, threads, sockets, etc

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