forked from 1b-agent/opencadstudio-upstream
Karim Jerbi
7978d1eb2e
Shares the benchmark harness between both suites, extracts the plan/batch/apply helpers out of the EXPLODE command arm, and adds the command_benchmarks target.
292 lines
9.5 KiB
Rust
292 lines
9.5 KiB
Rust
use serde::{Deserialize, Serialize};
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use std::collections::HashMap;
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use std::env;
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use std::path::{Path, PathBuf};
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// ── Metric Structures ───────────────────────────────────────────────────────
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#[derive(Debug, Clone, Serialize, Deserialize)]
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pub struct BenchmarkMetric {
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pub name: String,
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pub description: String,
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pub unit: String,
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pub samples: usize,
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pub min: f64,
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pub max: f64,
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pub mean: f64,
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pub median: f64,
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pub p95: f64,
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pub p99: f64,
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pub std_dev: f64,
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pub throughput: Option<f64>,
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pub throughput_unit: Option<String>,
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pub target_threshold: Option<f64>,
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pub passed_target: bool,
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}
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#[derive(Debug, Clone, Serialize, Deserialize)]
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pub struct BenchmarkSuiteReport {
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pub timestamp: String,
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pub os: String,
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pub arch: String,
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pub profile: String,
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pub is_quick_mode: bool,
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pub metrics: Vec<BenchmarkMetric>,
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}
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pub struct BenchmarkRunner {
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pub title: String,
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pub quick_mode: bool,
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pub filter: Option<String>,
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pub baseline_path: Option<PathBuf>,
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pub output_path: PathBuf,
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pub results: Vec<BenchmarkMetric>,
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}
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impl BenchmarkRunner {
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pub fn new(title: impl Into<String>, default_output: &str) -> Self {
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let args: Vec<String> = env::args().collect();
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let quick_mode =
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args.iter().any(|a| a == "--quick" || a == "-q") || env::var("CAD_BENCH_QUICK").is_ok();
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let filter = args
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.windows(2)
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.find(|w| w[0] == "--filter")
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.map(|w| w[1].clone())
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.or_else(|| env::var("CAD_BENCH_FILTER").ok());
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let baseline_path = args
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.windows(2)
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.find(|w| w[0] == "--baseline")
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.map(|w| PathBuf::from(&w[1]))
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.or_else(|| env::var("CAD_BENCH_BASELINE").ok().map(PathBuf::from));
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let output_path = args
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.windows(2)
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.find(|w| w[0] == "--output")
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.map(|w| PathBuf::from(&w[1]))
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.or_else(|| env::var("CAD_BENCH_OUTPUT").ok().map(PathBuf::from))
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.unwrap_or_else(|| {
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let target_dir = Path::new("target");
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if !target_dir.exists() {
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let _ = std::fs::create_dir_all(target_dir);
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}
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target_dir.join(default_output)
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});
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Self {
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title: title.into(),
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quick_mode,
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filter,
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baseline_path,
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output_path,
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results: Vec::new(),
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}
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}
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pub fn should_run(&self, name: &str) -> bool {
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if let Some(ref filter) = self.filter {
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name.to_lowercase().contains(&filter.to_lowercase())
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} else {
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true
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}
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}
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/// Record a measured benchmark with multiple timing samples.
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pub fn record(
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&mut self,
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name: &str,
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description: &str,
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unit: &str,
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mut samples: Vec<f64>,
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throughput: Option<(f64, &str)>,
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target_threshold: Option<f64>,
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) {
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if samples.is_empty() {
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return;
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}
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samples.sort_by(|a, b| a.total_cmp(b));
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let n = samples.len();
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let min = samples[0];
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let max = samples[n - 1];
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let sum: f64 = samples.iter().sum();
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let mean = sum / (n as f64);
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let median = if n % 2 == 0 {
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(samples[n / 2 - 1] + samples[n / 2]) * 0.5
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} else {
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samples[n / 2]
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};
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let p95_idx = ((n as f64) * 0.95).floor() as usize;
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let p95 = samples[p95_idx.min(n - 1)];
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let p99_idx = ((n as f64) * 0.99).floor() as usize;
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let p99 = samples[p99_idx.min(n - 1)];
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let variance: f64 = samples.iter().map(|&x| (x - mean).powi(2)).sum::<f64>() / (n as f64);
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let std_dev = variance.sqrt();
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let passed_target = match target_threshold {
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Some(thresh) => median <= thresh,
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None => true,
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};
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let (thru_val, thru_unit) = match throughput {
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Some((val, u)) => (Some(val), Some(u.to_string())),
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None => (None, None),
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};
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self.results.push(BenchmarkMetric {
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name: name.to_string(),
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description: description.to_string(),
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unit: unit.to_string(),
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samples: n,
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min,
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max,
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mean,
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median,
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p95,
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p99,
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std_dev,
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throughput: thru_val,
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throughput_unit: thru_unit,
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target_threshold,
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passed_target,
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});
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}
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/// Print summary table to stdout and persist JSON report.
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pub fn finish(&self) {
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let baseline_map: HashMap<String, BenchmarkMetric> =
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if let Some(ref path) = self.baseline_path {
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if let Ok(content) = std::fs::read_to_string(path) {
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if let Ok(report) = serde_json::from_str::<BenchmarkSuiteReport>(&content) {
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println!(
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"\nLoaded baseline from '{}' ({} metrics)",
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path.display(),
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report.metrics.len()
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);
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report
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.metrics
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.into_iter()
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.map(|m| (m.name.clone(), m))
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.collect()
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} else {
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eprintln!(
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"Warning: Failed to parse baseline JSON at '{}'",
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path.display()
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);
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HashMap::new()
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}
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} else {
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eprintln!(
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"Warning: Could not read baseline file at '{}'",
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path.display()
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);
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HashMap::new()
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}
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} else {
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HashMap::new()
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};
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println!("\n{}", "=".repeat(120));
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println!("{}", self.title);
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println!("{}", "=".repeat(120));
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println!(
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"{:<38} | {:>8} | {:>8} | {:>8} | {:>8} | {:>16} | {:>10} | {:^6}",
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"Benchmark Name", "Median", "Mean", "P95", "Min", "Throughput", "Baseline", "Status"
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);
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println!("------------------------------------------------------------------------------------------------------------------------");
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for m in &self.results {
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let throughput_str = match (&m.throughput, &m.throughput_unit) {
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(Some(val), Some(unit)) => {
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if *val >= 1_000_000.0 {
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format!("{:.2}M {}", val / 1_000_000.0, unit)
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} else if *val >= 1_000.0 {
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format!("{:.1}k {}", val / 1_000.0, unit)
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} else {
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format!("{:.1} {}", val, unit)
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}
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}
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_ => "-".to_string(),
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};
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let baseline_col = if let Some(base) = baseline_map.get(&m.name) {
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if base.median > 0.0 {
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let delta_pct = ((m.median - base.median) / base.median) * 100.0;
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if delta_pct < -1.0 {
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format!("{:+.1}% (fast)", delta_pct)
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} else if delta_pct > 1.0 {
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format!("{:+.1}% (slow)", delta_pct)
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} else {
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"~0.0%".to_string()
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}
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} else {
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"-".to_string()
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}
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} else {
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"-".to_string()
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};
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let status = if m.passed_target { "PASS" } else { "FAIL" };
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println!(
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"{:<38} | {:>6.2} {:<1} | {:>6.2} {:<1} | {:>6.2} {:<1} | {:>6.2} {:<1} | {:>16} | {:>10} | {:^6}",
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m.name,
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m.median,
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m.unit,
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m.mean,
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m.unit,
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m.p95,
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m.unit,
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m.min,
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m.unit,
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throughput_str,
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baseline_col,
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status,
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);
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}
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println!("========================================================================================================================\n");
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let report = BenchmarkSuiteReport {
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timestamp: chrono_now(),
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os: env::consts::OS.to_string(),
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arch: env::consts::ARCH.to_string(),
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profile: if cfg!(debug_assertions) {
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"debug".to_string()
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} else {
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"release".to_string()
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},
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is_quick_mode: self.quick_mode,
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metrics: self.results.clone(),
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};
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if let Ok(json) = serde_json::to_string_pretty(&report) {
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if let Some(parent) = self.output_path.parent() {
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let _ = std::fs::create_dir_all(parent);
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}
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if let Err(e) = std::fs::write(&self.output_path, json) {
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eprintln!(
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"Error saving metrics to '{}': {}",
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self.output_path.display(),
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e
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);
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} else {
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println!(
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"Saved complete performance metrics JSON to: {}\n",
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self.output_path.display()
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);
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}
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}
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}
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}
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fn chrono_now() -> String {
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let d = std::time::SystemTime::now()
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.duration_since(std::time::UNIX_EPOCH)
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.unwrap_or_default();
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format!("unix_{}", d.as_secs())
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}
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