Constant places::bookmark_sync::store::MAX_FRECENCIES_TO_RECALCULATE_PER_CHUNK

const MAX_FRECENCIES_TO_RECALCULATE_PER_CHUNK: usize = 400;

The maximum number of URLs for which to recalculate frecencies at once. This is a trade-off between write efficiency and transaction time: higher maximums mean fewer write statements, but longer transactions, possibly blocking writes from other connections.