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Associate
September 9, 2026
Question

stm32cubeide for vscode startup very slow

  • September 9, 2026
  • 3 replies
  • 28 views

Updated to the latest version and found that VSCode starts very slowly. It was discovered that the problem lies with the STM32Cube.

I have exported the startup time of VSCode.

The time taken by STMicroelectronics.stm32cube-ide-build-cmake is 335054ms,~6min

STMicroelectronics.stm32cube-ide-core is 23993ms

 

3 replies

Julien D
ST Employee
September 10, 2026

Hi ​@mimopp,

Indeed, this startup time looks incredibly abnormal.

Are you seeing it both with and without folders opened in VS Code?

Are you online or offline? If so, could you open an integrated terminal and run cube bundle list-online to observe the performance? The response should be quite immediate.

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mimoppAuthor
Associate
September 10, 2026

This problem also exists even without opening the folder, but it will take a shorter time.

Run cube bundle list-online,the response seems to be a bit slow.

 

Julien D
ST Employee
September 10, 2026

May I ask where you are located? We recently had some network performance issues with the China region, so they may have resurfaced.

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.