Struct CommandHistogram 

#[non_exhaustive]
pub struct CommandHistogram {
    pub calls: usize,
    pub histogram_usec: HashMap<u32, u32>,
}

Command Histogram for the latency_histogram commands.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

calls: usize

The total calls for that command.

histogram_usec: HashMap<u32, u32>

A map of time buckets:

• Each bucket represents a latency range.
• Each bucket covers twice the previous bucket’s range.
• Empty buckets are not printed.
• The tracked latencies are between 1 microsecond and roughly 1 second.
• Everything above 1 sec is considered +Inf.
• At max there will be log2(1000000000)=30 buckets.

Trait Implementations

impl Default for CommandHistogram

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for CommandHistogram

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.