NodeLoad
How much of what a node has is in use now: an immutable value (work-placement §WPN-2, §WPN-4).
In the namespace inventory. Declared in src/libs/libinventory/inventory/NodeLoad.hpp.
Detailed description
libmonitor's `SampleSet` reduced to what placement reads, so the monitor and the solver see the same numbers. Taken about once a second by `InventoryService`.