java -server

jdk1.5 부터는 메모리 2G이상, cpu 2개이상 있으면, 자동으로 server-class로 판별하고 자동으로 -server로 jvm을 실행하게 된다.

리눅스 서버는 대부분이 cpu2개이상, 메모리 2G이상이면, -server 옵션 안써도 됨~

 

http://java.sun.com/docs/hotspot/gc5.0/ergo5.html   In the J2SE platform version 5.0 a class of machine referred to as a server-class machine has been defined as a machine with - 2 or more physical processors - 2 or more Gbytes of physical memory   On server-class machines by default the following are selected. - Throughput garbage collector - Heap sizes - initial heap size of 1/64 of physical memory up to 1Gbyte - maximum heap size of ¼ of physical memory up to 1Gbyte - Server runtime compiler