Function roofline_bounds 

pub fn roofline_bounds(
    client: &Client,
    compute_key: ThroughputKey,
    work: Work,
    thresholds: Thresholds,
) -> Bounds

Both halves of the roofline for a Work amount, with the memory ceiling a copy’s.

A copy’s traffic runs in both directions, which is the ceiling for a kernel that reads and writes alike. A kernel bound by one resource states that half alone with compute_bound or memory_bound.