Increasing IntelliJ IDEA IntelliSense File Size
IntelliJ IDEA’s IntelliSense, or code completion feature, is a powerful tool that assists in writing code more efficiently by providing suggestions, autocompletions, and insights into the code. However, in large projects or with extensive codebases, the default memory settings might not be sufficient, causing IntelliSense to slow down or become less responsive. Increasing the IntelliSense file size can help mitigate these issues.
Steps to Increase IntelliSense File Size
Open IntelliJ IDEA:
- Start your IntelliJ IDEA IDE.
Access the
idea.properties
File:The
idea.properties
file is located in thebin
directory of your IntelliJ IDEA installation. You can typically find it here:Windows:
C:\Program Files\JetBrains\IntelliJ IDEA\bin\
idea.properties
macOS:
/Applications/IntelliJ
IDEA.app/Contents/bin/idea.properties
Linux:
/opt/idea/bin/
idea.properties
If the
idea.properties
file does not exist, you can create it.
Edit the
idea.properties
File:Open the
idea.properties
file in a text editor.Add or modify the following lines to increase the IntelliSense cache size:
idea.max.intellisense.filesize=2500
- The value
2500
represents the file size limit in kilobytes (KB). You can adjust this value according to your needs.
- The value
Save and Restart IntelliJ IDEA:
Save the changes to the
idea.properties
file.Restart IntelliJ IDEA for the changes to take effect.
Additional Tips
Adjust JVM Memory Settings:
In addition to increasing the IntelliSense file size, you might also need to adjust the JVM memory settings for IntelliJ IDEA to ensure it has enough memory to handle large projects. You can do this by modifying the
idea.vmoptions
file:Windows:
C:\Users\<YourUsername>\.IntelliJIdea<version>\idea64.exe.vmoptions
macOS:
~/Library/Preferences/IntelliJIdea<version>/idea.vmoptions
Linux:
~/.IntelliJIdea<version>/idea64.vmoptions
Add or modify the following lines to increase the heap size:
-Xms1024m -Xmx4096m -XX:ReservedCodeCacheSize=512m
Increasing the IntelliSense file size and adjusting JVM memory settings can significantly enhance IntelliJ IDEA's performance, particularly for large projects, ensuring smoother and more efficient coding sessions.