Enum BenchCases 

pub enum BenchCases<'routine> {
    OneAtATime(Vec<(&'static str, BenchRoutine<'routine>)>),
    Together(Vec<(&'static str, BenchSentRoutine)>),
}

The cases of one group, and what measuring them at once would cost.

Variants

OneAtATime(Vec<(&'static str, BenchRoutine<'routine>)>)

Measured one at a time, which is what a CPU-bound round needs: rounds running beside each other contend for cores, and what is measured is the contention.

Together(Vec<(&'static str, BenchSentRoutine)>)

Measured at the same time, which an IO-bound round allows: time spent blocked costs the same blocked beside another round, so the group takes what its longest case takes.

Implementations

impl BenchCases<'_>

pub fn len(&self) -> usize

Answers how many cases the group states.

pub fn is_empty(&self) -> bool

Answers whether the group states no case.

pub fn subjects(&self) -> impl Iterator<Item = &'static str> + '_

Reads the subject of every case, in the order stated.