Starting tools from CubeIDE take a long time on modern Linux distributions

[Semer CHERNI]

Hello community,

Few days ago, some post linked to performance issue with STM32CubeIDE on Ubunto 24.04 and Debian testing [trixie] machines.

This is a known issue in ECLIPSE and was not causing issues for STM32CubeIDE, however with the new Linux distributions the problem occurs.

Temporary solution:

As a temporary solution there are two propositions:

• Make temporary changes for each STM32CubeIDE start.
  set the hard limit in current terminal : ulimit -n -H 4096
• Make change for the entire system: edit /etc/security/limits.conf and add the line “username hard nofile 4096”

Long term solution:

The long-term solution will be the integration of the newest Eclipse version in STM32CubeIDE

[debugging]

This topic title is not correct. CubeIDE just fails to work and build at all w.o this change (on Ubuntu 24.10 at least). Please make this a very high priority problem to fix. It's been 4 months...

P.s edit /etc/security/limits.conf change wasn't needed.

More details:

https://community.st.com/t5/stm32cubeide-mcus/cubeide-does-not-start-and-spawner-reaper/td-p/685814