Module stats 

Stage 2 of backend benchmarking for the blob kind: precision and per-operation statistics. The same shape as persistant_kv::stats. No timing (stage 3) and no ranking.

measure runs each leaf’s test runs times, one attempt each, and reports how often it passed, how often the backend broke the contract and how often it errored, with the first failure’s text. Instrumented counts, per operation, the calls and the errors by kind. A leaf is exact only if every run passed; a fraction is never rounded up, and the contract (stage 1) still decides eligibility.

Structs

Instrumented

A BlobBackend that counts what the wrapped backend does, per operation. It changes nothing.

LeafStats

The result of running one leaf’s test runs times on a target.

OpCount

What one operation did while a test ran: calls, successes and errors by kind.

Functions

measure

Run each leaf’s test runs times on target (one attempt per run) and count.