bundles manager takes very long time to load

[ianzone]

Hi, the extension version is 3.8.0, and it usually takes 5min to load, is that normal? Also, is there any CDN or dedicated server for Chinese users? cuz it's troublesome to download those bundles here. Thx

[Julien D]

Hi @ianzone,

Yes Chineses users have their regional server, and nothing changed in term of infrastructure with the release of version 3.8.0. Means maybe a tooling issue.

How long take the 2 following commands aiming to list the remote and local bundles?

cube bundle list-online
cube bundle list

It should somehow reply immediately for both.

 

[ianzone]

Seems not a server issue, those 2 commands replied immediately, but the extension still takes long time to load. 

[Julien D]

Hi @ianzone,

Thanks for sharing the logs, indeed it highlights what could look like really bad network performance.

First I see that you use a local proxy, do you have the capability to make some test without it?

It would be interesting to compare bundle downloads speeds in the 2 configurations (with and without your proxy) by manually installing a toolchain bundle: 

cube bundle install gnu-tools-for-stm32@^13.0.0

It can be removed later thanks this command:

cube bundle remove gnu-tools-for-stm32@^13.0.0

 

[ianzone]

Without proxy: 7000 KB/s

With proxy: timeout

I've put *st.com into the proxy whitelist; it shouldn't affect the download speed. 

[Julien D]

Wouldn't this clearly indicate that your local proxy configuration is somehow blocking traffic? If so, your proxy logs should help identify which flow is being rejected.

Additionally, if your proxy performs SSL inspection, you may need to set the NODE_EXTRA_CA_CERTS variable to configure your proxy's root CA certificate. A simple cube pack sync command will show SSL errors if the handshake fails. If the command works, you can ignore this comment.

[ianzone]

sometimes it fails

2026-04-24 10:44:10.437 [Info]  Adding STM32Cube CLI path to environment: c:\Users\yihen\.vscode\extensions\stmicroelectronics.stm32cube-ide-core-1.2.1-win32-x64\resources\binaries\win32\x86_64

2026-04-24 10:44:10.559 [Info]  Configuring CUBE_BUNDLE_PATH environment: C:\Users\yihen\AppData\Local\stm32cube\bundles

2026-04-24 10:44:10.560 [Info]  NODE_EXTRA_CA_CERTS is not set

2026-04-24 10:44:10.650 [Info]  CMSIS_PACK_ROOT=C:\Users\yihen\AppData\Local\stm32cube\packs

2026-04-24 10:44:15.379 [Info]  cube wrapper version: 0.10.2

2026-04-24 10:44:16.317 [Info]  Online bundle cache built

2026-04-24 10:51:17.893 [Info]  Installing STM32Cube bundles prerequisites

2026-04-24 10:52:16.145 [Error]  Failed to initialize STM32Cube bundles: Failed to get list of available updates. Command failed with

2026-04-24 10:52:16.150 [Info]  STM32Cube Core activated (485736ms)

2026-04-24 10:52:16.152 [Info]  Syncing CMSIS-Pack metadata for C:\Users\yihen\AppData\Local\stm32cube\packs

2026-04-24 10:52:16.154 [Info]  No need to sync metadata, since recently updated.