• Describe the issue
  Now we whacked down one wallpaper bubble in the quest for faster composes, another one popped up. For some reason, that Server-KVM createImage task takes two hours on ppc64le. It takes a half hour max on the other arches (often just ten minutes). From the oz log, it seems to spend an eternity just downloading and installing packages.

@kevin points out that the storage backing the ppc64le builders isn't great (7200rpm spinning rust), but that doesn't seem like it can the whole story, as Workstation live image build takes about 40 minutes on both ppc64le and x86_64. We don't know if this is because lmc somehow disables sync and oz doesn't, or what.

@ngompa is going to try and do an equivalent Kiwi image description so we can try building it with Kiwi and see if that's faster.

• When do you need this? (YYYY/MM/DD)
  No specific date

• When is this no longer needed or useful? (YYYY/MM/DD)
  No specific date

• If we cannot complete your request, what is the impact?
  Composes will take about 90 minutes longer than necessary