Blender uses a lot of CPU, memory and storage

[twin basin]

Before, I was working with blender and while slow, I could still use it with my 512MB VRAM 8400GS while overclocked. Thing is though, after a very necessary cleanup and WD40 application to the fan (because it wasn't running well) I got better temps so I thought "man, maybe I'll be able to go a bit faster and manage to finish fixing my blender build". However, it came to my surprise that my Intel G3220 CPU, my 8GB of DDR3 memory and my 240GB SATA SSD are getting bottlenecked while my GPU does barely anything

[unkempt grove]

Depends on your render settings looks like pretty old GPU so I don't know if you'd really benefit from trying to switch to cycles and enabling CUDA but it will at least try to use the GPU rather than CPU then

Go to Edit -> System -> Preferences see options up top for toggling to GPU or CPU based rendering, then in the scene settings (panel on right) can hit drop down where it says "eevee" here and change to cyles if have GPU with "enough CUDA cores" support it will work better in general

Also typically Blender uses a section of your disk as "cache" for things like prebaking simulation data or whatever other stuff it needs to temporarily store and newer versions have more "automatic recovery" type stuff built in I believe so may do more of that kind of writing back in the background as well.

[twin basin]

Thing is I'm working on doing a racetrack and I'm working with GIS, the basemap doesn't save elevation and earth curvature correction even if I apply modifiers. So naturally I have to reapply each and every single time the same settings

[unkempt grove]

hmm, if something needing to repeat check out the blender "scripts" section lets you use python and blender libraries to help automate flows, I've also had LLM/chat agents help out with building Blender Add-Ons before and should be able to help script a solution if you can describe it well enough

depending on what you're after is possible it'd be easier to just code something outside of blender that gives you the same result leveraging LLMs too (not to be some AI pusher but is potentially an option)

[twin basin]

I don't need it to repeat something, I need something to apply ONCE and that's it, yet whenever I save and close the app then open again, all of the terrain elevation is gone.

[unkempt grove]

Hmm applied modifiers should actual edit the mesh and be saved into a blend file if it's not applied then it needs to recompute it to find the new vertices/geometry

Some operations are sequential in nature and can't/won't be offloaded to GPU too though stuff like the 2d UI elements may not be GPU accelerated (the viewport rendering typically will be using GPU but other operations it depends)