Sébastien Martin seb-martin
P7h
/ IntelliJ_IDEA__Perf_Tuning.txt
Last active
October 16, 2025 02:52
Performance tuning parameters for IntelliJ IDEA. Add these params in idea64.exe.vmoptions or idea.exe.vmoptions file in IntelliJ IDEA. If you are using JDK 8.x, please knock off PermSize and MaxPermSize parameters from the tuning configuration.
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| -server | |
| -Xms2048m | |
| -Xmx2048m | |
| -XX:NewSize=512m | |
| -XX:MaxNewSize=512m | |
| -XX:PermSize=512m | |
| -XX:MaxPermSize=512m | |
| -XX:+UseParNewGC | |
| -XX:ParallelGCThreads=4 | |
| -XX:MaxTenuringThreshold=1 |