On Tue, Nov 25, 2025 at 03:33:12PM +0000, H. Hartzer wrote: > On Tue Nov 25, 2025 at 5:38 AM UTC, Mike Larkin wrote: > >> Is it possible to remove kernel options not useful for VMs, such as say > >> DRM and graphics drivers, and not have those as part of the linking > >> process? I imagine that would lower reorder_kernel memory consumption > >> quite a bit. > >> > > > > probably won't help as much as you think. Those devices don't attach, so > > they > > won't consume any memory aside from a few mb in .text . > > > > -ml > > Hi Mike, > > I mean more at the linking process, as ld's memory usage gets so high. > > I can't help but think that if it wasn't linking say amdgpu, ld would > use a lot less memory. > > Though, I'm not sure one can drop parts being linked without > recompiling? > > It'd be nice to have a 512MB server comfortable booting without swap, > in a heavy multi-tenant usecase. > > -Henrich
How many tenant VMs are we talking about here, and what is the host hardware? Also.. if this is really a problem for you just build your own kernel and handle relinking on your own. I don't think retrofitting KARL for this use case makes sense. -ml
