#FeatureRequest Parallel building about vs-code-stm32-ide HOT 3 CLOSED

Hello and thank you ;)
Adding new common switches to Makefile or 'make' command is generally not a good idea - someone might have a different configuration/CPU, different hardware or simply don't want this switch. In case of -jX command, X is number-of-cores-specific switch, meaning: I might have only 2 cores, while you have 4. I don't know what exactly will happen if this switch is not properly configured. So, no, this will not be added.
Anyway, there are other simple solutions for your request:

• Manually modify generated tasks.json file in .vscode subfolder.
  Search for Build project task and find: "args": [ ] field. Simply add your custom switches there, in your case this would be "-j12" added after "GCC_PATH=...", field.
  NOTE: This will be overwritten with next ideScripts update ('Update workspace' task).

• Generate new build task.
  Just copy entire Build project task, rename it and add argument as described above.
  NOTE: This task will NOT be overwritten on 'Update workspace' task. However, if something goes wrong (aka bad settings in any of other json files), your task will be overwritten (but stored in .backup files).

• Modify task generator script.
  Find updateTasks.py and search for def getBuildTask(self) function. At the bottom of this function, you can find:
  jsonTaskData["args"] = ["GCC_PATH=" + gccFolderPath]
  Just add your custom argument in the same manner:
  jsonTaskData["args"] = ["-j12"]
  NOTE: 'Make' command will be updated on 'Update workspace' task. This option will only be re-set to default on ideScript files update (eg.: future updates from this GitHub repository).

from vs-code-stm32-ide.

Well, yeah, the -j12 is useful for my work pc and home pc, but I can't imagine you can't just add some detection.
Heck I whipped up python and executed two commands.

Adding more threads than there are available simply does nothing. Or, well, it might every so slightly degrade it.
The only true problem I could see by adding this function is that for some reason some code may not be compiled in parallel, but I've never had that problem with embedded code for the ST at least.

from vs-code-stm32-ide.

After a short break, I decided to give it a try and I have implemnted this feature.
Added '-jX' switch, where X is NUMBER OF CORES *1.5. 1.5 number is advised on many GNU make forum posts, so I go with this number.
On my 4-core PC there is not that much difference in time (about 20%), but I agree that every second you have must wait is a wasted second.

Update your ideScripts.

from vs-code-stm32-ide.