load1 property
Load1 is the machine's own one-minute load average — a count of runnable and uninterruptible tasks, NOT a percentage and NOT already divided by core count, so it is read against Spec.CPUs: 8.0 is idle on 16 cores and swamped on 4. Coerced finite and non-negative on write, so 0 means either genuinely idle or nothing reported.
Please note: This property should have been non-nullable! Since the specification file does not include a default value (using the "default:" property), however, the generated source code must fall back to having a nullable type. Consider adding a "default:" property in the specification file to hide this note.
Implementation
num? load1;