IntelliJ IDEA high CPU usage and intermittent hanging
Answered
I am experiencing repeated high CPU usage and intermittent freezing while using IntelliJ IDEA in a Windows virtual desktop environment.
At times, IntelliJ becomes very slow or unresponsive and affects my work. The issue continues after the virtual desktop and security-related checks were completed.
Environment details:
- IntelliJ IDEA build: IU-252.27397.103
- Operating system: Windows
- GitHub Copilot, Gherkin and Cucumber for Java are installed
Attached the following files captured (idea.log and CPU profiling capture) while the issue was occurring:
2026_07_22_SGgb7KvmD8tFvUhJBsXEkc
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Hi there,
Based on the attached CPU snapshot, high CPU usage was caused by the Cucumber plugin.
The root cause is the same as in the known issue – https://youtrack.jetbrains.com/issue/IDEA-296675
Please update your IntelliJ IDEA to the 2026.2 version, which included some improvements (from the fixed issue https://youtrack.jetbrains.com/issue/IDEA-386128).
If you still have such problems with the Cucumber plugin in the 2026.2 version, please use the following workaround from IDEA-296675:
1. Open Settings in the IntelliJ IDEA
2. Disable features that trigger calculation of usages:
Let us know how it goes for you in the 2026.2 version of IntelliJ IDEA, thanks in advance.