Struct apdex::Apdex

pub struct Apdex {
    pub threshold: f64,
    pub satisfied: u64,
    pub tolerating: u64,
    pub frustrated: u64,
}

Represents Apdex score after samples were characterize into one of the three groups. When displayed a Uniform Output will be used.

Fields

threshold: f64

Satisfied Zone/Tolerating Zone threshold in seconds.

satisfied: u64

Count of response times characterized as Satisfied.

tolerating: u64

Count of response times characterized as Tolerating.

frustrated: u64

Count of response times characterized as Frustrated.

Methods

impl Apdex

pub fn new(threshold: f64) -> Apdex

Crate new Apdex value given Satisfied Zone/Tolerating Zone threshold time in seconds.

pub fn with_respnse_times(     threshold: f64,     response_times: impl IntoIterator<Item = Result<f64, ()>> ) -> Apdex

Crate new Apdex value with samples characterized from provided sample set. Err samples are counted as Frustrated samples.

pub fn with_hit_rate(     threshold: f64,     assumed_hit_rate: f64,     response_times: impl IntoIterator<Item = Result<f64, ()>> ) -> Apdex

Crate new Apdex value with samples characterized from provided sample set with assumption of cache presence and given hit rate. Provided samples are interpreted as cache misses and characterized. Err samples are counted as Frustrated samples. Apdex Satisfied group sample count is adjusted by simulated cache hit sample count.

pub fn insert(&mut self, response_time: Result<f64, ()>)

Characterize given sample. Err samples are counted as Frustrated samples.

pub fn total(&self) -> u64

Returns total number of characterized samples

pub fn no_samples(&self) -> bool

True if no samples were characterized

pub fn small_group(&self) -> bool

True if less than 100 samples were characterized

pub fn score(&self) -> Option<f64>

Calculate Apdex Score value. If no samples were characterized None is returned.

pub fn score_rating(&self) -> ApdexRating

Wraps this object in type implementing Display of the rating (a word) for the score

pub fn rating_word(&self) -> &'static str

Returns the rating word: Excellent, Good, Fair, Poor, Unacceptable or NoSample

pub fn color(&self) -> Color

Returns Color value from yansi crate corresponding to score value

Trait Implementations

impl Debug for Apdex

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Default for Apdex

fn default() -> Apdex

Returns the "default value" for a type.

impl Display for Apdex

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.