Hello, Guix offload monitors the load of the offload machine, and waits patiently until the load comes back down below a pre-determined level (normalized 2.0 level, it seems) before starting the next build, even when there is a single offload build machine involved. This is inefficient and causes it to throttle itself.
Idea of an improvement: it should choose the offload machine with the less load (already the case, I believe), and not block waiting for the load to go down before starting a build. Maxim