As there was no successful ppc64le build since 2020-02-28, I also tried do get the statistics of last successful build using "osc getbinaries". The memory consumption was Kernel:HEAD 2763 MB Kernel:stable 2684 MB which is a bit higher than with older versions of the toolchain: Kernel:openSUSE-15.1 2396 MB Kernel:openSUSE-15.2 2350 MB but nowhere near four times higher.