scriptedalchemy / jetbrains-ide-performance Goto Github PK

Several comments on the idea.properties и vmoptions:
editor.zero.latency.typing=true doesn't have any positive influence
idea.max.intellisense.filesize increases the size of the files where the inspections run, so potentially it may decrease performance
idea.cycle.buffer.size increases the size of the console being saved, potentially it may decrease performance
Too big memory size indicated in vmoptions may be not suitable for everyone.
Also, there are many options that are enabled by default, for example:
-XX:+OptimizeStringConcat
-XX:+DoEscapeAnalysis
-XX:+TraceClassUnloading
or those options that aren't included in Java 8, for example:
-XX:+UseSplitVerifier
-XX:+UseStringCache
-Dide.no.platform.update=true - if a user doesn't use ToolBox, he/she won't get updates with this option.
-XX:+AggressiveOpts, -XX:+OptimizeStringConcat- may positively influence the performance

-Xms1024m
-Xmx2048m
-Xss64m
-XX:ReservedCodeCacheSize=512m
-XX:+UseCompressedOops
-XX:NewRatio=2
-Dfile.encoding=UTF-8
-XX:+UseConcMarkSweepGC
-XX:SoftRefLRUPolicyMSPerMB=250
-XX:NewSize=512m
-XX:MaxNewSize=512m
-XX:PermSize=512m
-XX:MaxPermSize=1024m
-XX:ParallelGCThreads=4
-XX:MaxTenuringThreshold=1
-XX:SurvivorRatio=8
-XX:+UseCodeCacheFlushing
-XX:+AggressiveOpts
-XX:+CMSClassUnloadingEnabled
-XX:+CMSParallelRemarkEnabled
-XX:CMSInitiatingOccupancyFraction=65
-XX:+CMSScavengeBeforeRemark
-XX:+UseCMSInitiatingOccupancyOnly
-Xlog:class+unload=off
-XX:+AlwaysPreTouch
-XX:+TieredCompilation
-XX:+DoEscapeAnalysis
-XX:+UnlockExperimentalVMOptions
-XX:LargePageSizeInBytes=256m
-XX:+DisableExplicitGC
-XX:+ExplicitGCInvokesConcurrent
-XX:+PrintGCDetails
-XX:+PrintFlagsFinal
-XX:+HeapDumpOnOutOfMemoryError
-XX:+UseAdaptiveGCBoundary
-XX:CompileThreshold=10000
-XX:+OptimizeStringConcat
-XX:+UnlockDiagnosticVMOptions
-ea
-Dsun.io.useCanonCaches=false
-Djava.net.preferIPv4Stack=true
-XX:-OmitStackTraceInFastThrow
-Xverify:none
-XX:ErrorFile=$USER_HOME/java_error_in_idea_%p.log
-XX:HeapDumpPath=$USER_HOME/java_error_in_idea.hprof
-Dide.no.platform.update=true

OpenJDK 64-Bit Server VM warning: Ignoring option PermSize; support was removed in 8.0
OpenJDK 64-Bit Server VM warning: Ignoring option MaxPermSize; support was removed in 8.0
Unrecognized VM option 'UseParNewGC'

OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.
OpenJDK 64-Bit Server VM warning: Option AggressiveOpts was deprecated in version 11.0 and will likely be removed in a future release.
Unrecognized VM option 'CMSIncrementalMode'
Unrecognized VM option 'CMSIncrementalPacing'

[0.005s][warning][arguments] -XX:-TraceClassUnloading is deprecated. Will use -Xlog:class+unload=off instead.
Unrecognized VM option 'CMSPermGenSweepingEnabled'
Unrecognized VM option 'UseSplitVerifier'
Unrecognized VM option 'UseCompressedStrings'
Unrecognized VM option 'UseStringCache'
Unrecognized VM option 'UseFastAccessorMethods'
[0.006s][warning][gc       ] -XX:+PrintGCDetails is deprecated. Will use -Xlog:gc* instead.

OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.
OpenJDK 64-Bit Server VM warning: Ignoring option PermSize; support was removed in 8.0
OpenJDK 64-Bit Server VM warning: Ignoring option MaxPermSize; support was removed in 8.0
Unrecognized VM option 'UseParNewGC'
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.