pub(crate) static QUERIES: AtomicU64Expand description
Queries served and what they cost, since start.
Sum and max rather than a histogram: a p99 needs buckets, buckets need a registry, and a registry is the metrics subsystem this endpoint exists to not be. The mean says whether the engine is in the shape it was benchmarked in and the max says whether anything pathological has run at all, which is the pair an operator acts on; a real p99 is measured at the caller, where the queue in front of Mira is also counted.