pub fn note_prime_rows(rows: usize)Expand description
One prime chunk completed on this process’s worker thread, carrying rows token rows.
Ordering: the counters are Relaxed (diagnostics) but LAST_MS is Release and read Acquire,
so a reader that observes a fresh timestamp also observes the counts that produced it.
Cost is three atomic stores and one Instant::now() per CHUNK (not per token, not per
kernel), which is noise against a chunk that just moved thousands of token rows.