Is it possible to maximise core usage/load in Intellij IDEA Ultimate?
Answered
I recently upgraded my working setup to a beastly 6-core i7-9750H Windows laptop. However, the difference in compile/run times (for a very large project codebase) between when I used my 4-core macbook pro 13 (i7-8565U) isn't as pronounced as I was expecting.
Is Intellij Ultimate(or free, for that matter) automatically tuned to use the 'max' number of cores and threads available?
And which leads me to my next question: Is it possible to manually tune Intellij (kinda like Virtualbox) to allow it to use the FULL number of cores/threads for best performance? I dont intend to run anything else alongside Intellij.
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IDE uses maximum number of cores available, unless it is specifically restricted
- for indexing: https://youtrack.jetbrains.com/issue/IDEABKL-3806#focus=streamItem-27-2334098.0-0
- for code analysis: https://youtrack.jetbrains.com/issue/IDEA-116686#focus=streamItem-27-2519127.0-0
Not only cores may affect Running the build/launching the applications. The disk I/O, the antivirus/firewall checks may slow the process down.
If you have antivirus/firewall try with it disabled or make sure that IDE settings directories IDE installation home and project files are excluded from the scan.