benchmark_counters/
measurement.rs

1pub struct Measurement {
2    min: u128,
3    max: u128,
4    total: u128,
5    measurement_count: u128,
6}
7
8impl Measurement {
9    pub fn new() -> Self {
10        Self::default()
11    }
12
13    pub fn measuring_point(&mut self, p: u128) {
14        if self.measurement_count == 0 {
15            self.min = p;
16            self.max = p;
17            self.total = p;
18        } else {
19            self.min = self.min.min(p);
20            self.max = self.max.max(p);
21            self.total += p;
22        }
23        self.measurement_count += 1;
24    }
25
26    pub fn reset(&mut self) {
27        self.min = 0;
28        self.max = 0;
29        self.total = 0;
30        self.measurement_count = 0;
31    }
32
33    pub fn avg(&self) -> f32 {
34        if self.measurement_count == 0 {
35            return 0.0;
36        }
37        self.total as f32 / self.measurement_count as f32
38    }
39
40    pub fn min_max_avg(&self) -> (u128, u128, f32) {
41        (self.min, self.max, self.avg())
42    }
43}
44
45impl Default for Measurement {
46    fn default() -> Self {
47        Self::new()
48    }
49}
50
51#[cfg(test)]
52mod tests {
53    use super::*;
54
55    #[test]
56    fn test_empty() {
57        let m = Measurement::new();
58        assert_eq!((0, 0, 0.0), m.min_max_avg());
59    }
60
61    #[test]
62    fn test_single() {
63        let mut m = Measurement::new();
64        m.measuring_point(10);
65        assert_eq!((10, 10, 10.0), m.min_max_avg());
66    }
67
68    #[test]
69    fn test_double_with_reset() {
70        let mut m = Measurement::new();
71        m.measuring_point(10);
72        m.measuring_point(20);
73        assert_eq!((10, 20, 15.0), m.min_max_avg());
74        m.reset();
75        assert_eq!((0, 0, 0.0), m.min_max_avg());
76    }
77}
benchmark_counters/measurement.rs

benchmark_counters/
measurement.rs
