idea.vmoptions文件设置如下：
-server
-Xms512m
-Xmx2048m
-XX:MaxPermSize=512m
-XX:ReservedCodeCacheSize=256m
-XX:+UseCodeCacheFlushing
-XX:+UseConcMarkSweepGC
-XX:+AggressiveOpts
-XX:+CMSClassUnloadingEnabled
-XX:+CMSIncrementalMode
-XX:+CMSIncrementalPacing
-XX:CMSIncrementalDutyCycleMin=0
-XX:-TraceClassUnloading
-XX:+TieredCompilation
-XX:+UseCompressedOops -agentlib:yjpagent=probe_disable=*,disablealloc,disabletracing,onlylocal,disableexceptiontelemetry,delay=10000,sessionname=IntelliJIdea14
