amberjs 1.17.0

JavaScript/TypeScript runtime built with Rust and V8
Documentation
// 执行速度基准测试
// Stage 31.3: 性能基准测试完善
//
// 该模块提供执行速度相关的基准测试,包括:
// - 简单表达式执行测试
// - 函数调用性能测试
// - 对象操作性能测试
// - 数组操作性能测试
// - 循环性能测试

use crate::benchmarks::{BenchmarkConfig, BenchmarkFramework, BenchmarkResult, MetricType};
use std::collections::HashMap;
use std::time::Duration;

/// 执行速度基准测试套件
pub struct ExecutionBenchmark;
impl ExecutionBenchmark {
    /// 创建新的执行速度基准测试套件
    pub fn new() -> Self {
        Self
    }
    /// 简单表达式执行测试
    pub fn simple_expression_benchmark(&self) -> BenchmarkResult {
        let config: _ = BenchmarkConfig {
            iterations: 10000,
            warmup_iterations: 100,
            timeout: Some(Duration::from_secs(60)),
            save_raw_data: true,
            compare_with_baseline: true,
        };
        let framework: _ = BenchmarkFramework::new(config);
        framework.run_benchmark("simple_expression", MetricType::ExecutionTime, || {
            // 模拟简单表达式执行
            let mut sum = 0;
            for i in 0..100 {
                sum += i * 2;
            }
            sum
        })
    }
    /// 复杂计算性能测试
    pub fn complex_calculation_benchmark(&self) -> BenchmarkResult {
        let config: _ = BenchmarkConfig {
            iterations: 1000,
            warmup_iterations: 10,
            timeout: Some(Duration::from_secs(60)),
            save_raw_data: true,
            compare_with_baseline: true,
        };
        let framework: _ = BenchmarkFramework::new(config);
        framework.run_benchmark("complex_calculation", MetricType::ExecutionTime, || {
            // 模拟复杂计算
            let mut result = 0.0;
            for i in 0..1000 {
                result += (i as f64).sin() * (i as f64).cos();
            }
            result
        })
    }
    /// 函数调用性能测试
    pub fn function_call_benchmark(&self) -> BenchmarkResult {
        let config: _ = BenchmarkConfig {
            iterations: 10000,
            warmup_iterations: 100,
            timeout: Some(Duration::from_secs(60)),
            save_raw_data: true,
            compare_with_baseline: true,
        };
        let framework: _ = BenchmarkFramework::new(config);
        framework.run_benchmark("function_call", MetricType::ExecutionTime, || {
            // 模拟函数调用
            fibonacci(20)
        })
    }
    /// 递归函数性能测试
    pub fn recursive_function_benchmark(&self) -> BenchmarkResult {
        let config: _ = BenchmarkConfig {
            iterations: 1000,
            warmup_iterations: 10,
            timeout: Some(Duration::from_secs(60)),
            save_raw_data: true,
            compare_with_baseline: true,
        };
        let framework: _ = BenchmarkFramework::new(config);
        framework.run_benchmark("recursive_function", MetricType::ExecutionTime, || {
            // 模拟递归函数
            factorial(10)
        })
    }
    /// 对象操作性能测试
    pub fn object_operations_benchmark(&self) -> BenchmarkResult {
        let config: _ = BenchmarkConfig {
            iterations: 5000,
            warmup_iterations: 50,
            timeout: Some(Duration::from_secs(60)),
            save_raw_data: true,
            compare_with_baseline: true,
        };
        let framework: _ = BenchmarkFramework::new(config);
        framework.run_benchmark("object_operations", MetricType::ExecutionTime, || {
            // 模拟对象操作
            let mut obj = HashMap::new();
            for i in 0..100 {
                obj.insert(format!("key_{}", i), i * 2);
            }
            let mut sum = 0;
            for (_key, value) in &obj {
                sum += value;
            }
            sum
        })
    }
    /// 数组操作性能测试
    pub fn array_operations_benchmark(&self) -> BenchmarkResult {
        let config: _ = BenchmarkConfig {
            iterations: 5000,
            warmup_iterations: 50,
            timeout: Some(Duration::from_secs(60)),
            save_raw_data: true,
            compare_with_baseline: true,
        };
        let framework: _ = BenchmarkFramework::new(config);
        framework.run_benchmark("array_operations", MetricType::ExecutionTime, || {
            // 模拟数组操作
            let mut arr = Vec::new();
            for i in 0..1000 {
                arr.push(i * 2);
            }
            let sum: i32 = arr.iter().sum();
            sum
        })
    }
    /// 字符串操作性能测试
    pub fn string_operations_benchmark(&self) -> BenchmarkResult {
        let config: _ = BenchmarkConfig {
            iterations: 5000,
            warmup_iterations: 50,
            timeout: Some(Duration::from_secs(60)),
            save_raw_data: true,
            compare_with_baseline: true,
        };
        let framework: _ = BenchmarkFramework::new(config);
        framework.run_benchmark("string_operations", MetricType::ExecutionTime, || {
            // 模拟字符串操作
            let mut s = String::new();
            for i in 0..100 {
                s.push_str(&format!("item_{}_", i));
            }
            s.len()
        })
    }
    /// 循环性能测试
    pub fn loop_performance_benchmark(&self) -> BenchmarkResult {
        let config: _ = BenchmarkConfig {
            iterations: 1000,
            warmup_iterations: 10,
            timeout: Some(Duration::from_secs(60)),
            save_raw_data: true,
            compare_with_baseline: true,
        };
        let framework: _ = BenchmarkFramework::new(config);
        framework.run_benchmark("loop_performance", MetricType::ExecutionTime, || {
            // 模拟循环性能测试
            let mut sum = 0;
            for i in 0..10000 {
                if i % 2 == 0 {
                    sum += i;
                } else {
                    sum -= i;
                }
            }
            sum
        })
    }
    /// JSON 解析性能测试
    pub fn json_parsing_benchmark(&self) -> BenchmarkResult {
        let config: _ = BenchmarkConfig {
            iterations: 1000,
            warmup_iterations: 10,
            timeout: Some(Duration::from_secs(60)),
            save_raw_data: true,
            compare_with_baseline: true,
        };
        let framework: _ = BenchmarkFramework::new(config);
        framework.run_benchmark("json_parsing", MetricType::ExecutionTime, || {
            // 模拟 JSON 解析
            let json_str: _ = r#"{"name":"test","value":123,"items":[1,2,3,4,5]}"#;
            let parsed: Result<serde_json::Value, _> = serde_json::from_str(json_str);
            let _: _ = parsed.is_ok();
        })
    }
    /// 正则表达式性能测试
    pub fn regex_benchmark(&self) -> BenchmarkResult {
        let config: _ = BenchmarkConfig {
            iterations: 1000,
            warmup_iterations: 10,
            timeout: Some(Duration::from_secs(60)),
            save_raw_data: true,
            compare_with_baseline: true,
        };
        let framework: _ = BenchmarkFramework::new(config);
        framework.run_benchmark("regex", MetricType::ExecutionTime, || {
            // 模拟正则表达式
            let text: _ = "The quick brown fox jumps over the lazy dog 12345";
            let re: _ = regex::Regex::new(r"\d+").unwrap();
            let _matches: Vec<_> = re.find_iter(text).collect();
            _matches.len()
        })
    }
    /// 运行所有执行速度基准测试
    pub fn run_all_benchmarks(&self) -> Vec<BenchmarkResult> {
        vec![
            self.simple_expression_benchmark(),
            self.complex_calculation_benchmark(),
            self.function_call_benchmark(),
            self.recursive_function_benchmark(),
            self.object_operations_benchmark(),
            self.array_operations_benchmark(),
            self.string_operations_benchmark(),
            self.loop_performance_benchmark(),
            self.json_parsing_benchmark(),
            self.regex_benchmark(),
        ]
    }
    /// 生成执行速度性能报告
    pub fn generate_report(&self, results: &[BenchmarkResult]) -> String {
        let mut report = String::new();
        report.push_str("=== Execution Speed Performance Report ===\n\n");
        for result in results {
            report.push_str(&result.format_summary());
            report.push_str("\n\n");
        }
        // 统计分析
        let total_ops_per_second: f64 = results.iter().map(|r| r.operations_per_second).sum();
        let avg_ops_per_second: _ = total_ops_per_second / results.len() as f64;
        report.push_str(&format!(
            "Total Operations/Second: {:.0}\n",
            total_ops_per_second
        ));
        report.push_str(&format!(
            "Average Operations/Second: {:.0}\n",
            avg_ops_per_second
        ));
        report
    }
}
impl Default for ExecutionBenchmark {
    fn default() -> Self {
        Self::new()
    }
}
// 辅助函数
fn fibonacci(n: u32) -> u64 {
    match n {
        0 => 0,
        1 => 1,
        _ => fibonacci(n - 1) + fibonacci(n - 2),
    }
}
fn factorial(n: u64) -> u64 {
    match n {
        0 | 1 => 1,
        _ => n * factorial(n - 1),
    }
}
/// 执行速度优化建议
pub struct ExecutionOptimizationSuggestions {
    pub suggestions: Vec<String>,
}
impl ExecutionOptimizationSuggestions {
    /// 基于基准测试结果生成优化建议
    pub fn generate(results: &[BenchmarkResult]) -> Self {
        let mut suggestions = Vec::new();
        for result in results {
            let ops_per_sec: _ = result.operations_per_second;
            match result.name.as_str() {
                "simple_expression" => {
                    if ops_per_sec < 100000.0 {
                        suggestions.push(
                            "Simple expression execution is slow. Consider optimizing expression evaluation.".to_string()
                        );
                    }
                }
                "function_call" => {
                    if ops_per_sec < 50000.0 {
                        suggestions.push(
                            "Function call overhead is high. Consider inlining frequently called functions.".to_string()
                        );
                    }
                }
                "object_operations" => {
                    if ops_per_sec < 10000.0 {
                        suggestions.push(
                            "Object operations are slow. Consider optimizing property access patterns.".to_string()
                        );
                    }
                }
                "array_operations" => {
                    if ops_per_sec < 10000.0 {
                        suggestions.push(
                            "Array operations are slow. Consider optimizing array handling."
                                .to_string(),
                        );
                    }
                }
                _ => {}
            }
        }
        // 通用建议
        let avg_ops: _ =
            results.iter().map(|r| r.operations_per_second).sum::<f64>() / results.len() as f64;
        if avg_ops < 50000.0 {
            suggestions.push(
                "Overall execution speed is below target. Consider implementing more aggressive JIT optimizations.".to_string()
            );
        }
        Self { suggestions }
    }
    /// 格式化优化建议
    pub fn format(&self) -> String {
        if self.suggestions.is_empty() {
            "No optimization suggestions. Execution speed is within acceptable limits.".to_string()
        } else {
            format!(
                "=== Execution Optimization Suggestions ===\n\n{}",
                self.suggestions
                    .iter()
                    .enumerate()
                    .map(|(i, s)| format!("{}. {}", i + 1, s))
                    .collect::<Vec<_>>()
                    .join("\n")
            )
        }
    }
}