Constant mz_persist_client::internal::state::ROLLUP_THRESHOLD

pub(crate) const ROLLUP_THRESHOLD: Config<usize>;

Determines how often to write rollups, assigning a maintenance task after rollup_threshold seqnos have passed since the last rollup.

Tuning note: in the absence of a long reader seqno hold, and with incremental GC, this threshold will determine about how many live diffs are held in Consensus. Lowering this value decreases the live diff count at the cost of more maintenance work + blob writes.