'IntelliJ Scala so slow on fast CPU with 32GB ram

I am using IntelliJ 2019.1.3 Community Edition. In Scala compile server, JVM maximum heap size: 4096 my idea.vmoptions:

-Xms4096m
-Xmx6144m
-XX:ReservedCodeCacheSize=2048m
-XX:+UseCompressedOops
-Dfile.encoding=UTF-8
-XX:+UseConcMarkSweepGC
-XX:SoftRefLRUPolicyMSPerMB=50
-ea
-Dsun.io.useCanonCaches=false
-Djava.net.preferIPv4Stack=true
-Djdk.http.auth.tunneling.disabledSchemes=""
-XX:+HeapDumpOnOutOfMemoryError
-XX:-OmitStackTraceInFastThrow
-Xverify:none

-XX:ErrorFile=$USER_HOME/java_error_in_idea_%p.log
-XX:HeapDumpPath=$USER_HOME/java_error_in_idea.hprof

Environment

  • IntelliJ IDEA 2019.1.3 (Community Edition) Build #IC-191.7479.19, built on May 28, 2019 JRE: 1.8.0_202-release-1483-b58 x86_64 JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o macOS 10.14.5
  • IntelliJ Scala plugin v2019.1.8
  • CPU: 2,6 GHz Intel Core i7
  • 32 GB 2400 MHz DDR4

memory indicator shows 2582 used of 6060M

my current project is quite big, ( over 800 files ) and very often even in small files intellij can hang for a few secs, inpections took ages.. Can I speed it up ?

scalaintellij-idea


Solution 1:[1]

If this still occurs, you should file a bug; as a user of IntelliJ you should not need to worry about a slow editor.

To investigate the problem further, you can first look in the directory from "Help | Show Log in $FileManager". If there are any subdirectories named threadDumps-*, you can find out what stops the editor from being responsive.

You can find more details in the instructions for reporting performance problems in IDEA.

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Roland Illig

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