aquatic/crates/udp_bench/src/common.rs
2023-10-18 23:53:41 +02:00

24 lines
705 B
Rust

use indicatif::{ProgressBar, ProgressStyle};
use rand::Rng;
use rand_distr::Gamma;
pub const GAMMA_SHAPE: f64 = 0.2;
pub const GAMMA_SCALE: f64 = 100.0;
pub const NUM_INFO_HASHES: usize = 10_000;
pub fn create_progress_bar(name: &str, iterations: u64) -> ProgressBar {
let t = format!("{:<8} {}", name, "{wide_bar} {pos:>2}/{len:>2}");
let style = ProgressStyle::default_bar()
.template(&t)
.expect("setup indicatif template");
ProgressBar::new(iterations).with_style(style)
}
pub fn gamma_usize(rng: &mut impl Rng, gamma: Gamma<f64>, max: usize) -> usize {
let p: f64 = rng.sample(gamma);
let p = (p.min(101.0f64) - 1.0) / 100.0;
(p * max as f64) as usize
}