Jdev11g性能調優

不少朋友都會抱怨jdev慢。的確是，開了jdev先要佔用1個g的內存，然後運行的還是很慢。最近，發現jdev的開發人員有共享一些jdev jvm的調優設置，據說很不錯哦，大家試試看！

將以下配置複製到 $JDEV_HOME/jdeveloper/jdev/bin/jdev.conf 文件最後。

AddVMOption -XX:+AggressiveOpts
AddVMOption -XX:+UseStringCache
AddVMOption -XX:+OptimizeStringConcat
#
# only since Java 6 update 21 performance release
# reduces memory consumption
#
#AddVMOption -XX:+UseCompressedStrings
AddVMOption -XX:+ScavengeBeforeFullGC
#
# only for multi-core machines
#
#AddVMOption -XX:+UseConcMarkSweepGC
AddVMOption -XX:+UseGCOverheadLimit
#
# works only on 64-bit JVM
# dramatically reduces memory consumption
# by reducing memory addressing length overhead
#
#AddVMOption -XX:+UseCompressedOops