Runway reports raising GPU utilization by more than 20 percentage points by lending unused reserved capacity to interruptible jobs. Its Kueue-based system gives critical teams resource quotas, lets a shared queue borrow idle capacity and stops borrowed work when the owner needs it back. This puts expensive hardware to work without permanently surrendering a team's allocation.
The arrangement depends on borrowed jobs tolerating interruption and saving progress so they can restart. Reclaiming capacity is also not immediate: the company reports delays of 20 to 30 minutes in practice while running workloads shut down.
