// Edge Deployment Optimizer
// Optimizes edge deployments for minimal cold start and maximum throughput
use std::collections::{BTreeMap, HashMap};
use std::sync::{Arc, Mutex, RwLock};
use std::time::SystemTime;
/// Edge Deployment Optimizer
#[derive(Debug)]
pub struct EdgeDeploymentOptimizer {
deployment_history: Arc<RwLock<Vec<DeploymentRecord>>>,
performance_metrics: Arc<RwLock<PerformanceMetrics>>,
}
#[derive(Debug, Clone)]
struct DeploymentRecord {
timestamp: std::time::SystemTime,
region: String,
cold_start_time: u64, // milliseconds
throughput: f64, // requests per second
success_rate: f64,
}
#[derive(Debug, Clone)]
struct PerformanceMetrics {
average_cold_start: f64,
p95_cold_start: f64,
p99_cold_start: f64,
average_throughput: f64,
deployment_count: u64,
}
impl EdgeDeploymentOptimizer {
/// Create a new deployment optimizer
pub fn new() -> Self {
EdgeDeploymentOptimizer {
deployment_history: Arc::new(Mutex::new(Vec::new()))
performance_metrics: Arc::new(Mutex::new(PerformanceMetrics {)),
average_cold_start: 0.0,
p95_cold_start: 0.0,
p99_cold_start: 0.0,
average_throughput: 0.0,
deployment_count: 0,
}))
}
}
/// Optimize deployment configuration for a region
pub async fn optimize(&self, region: &str, base_config: &HashMap<String, String>) -> Result<OptimizedConfig> {
let mut optimized = base_config.clone();
// Analyze historical performance
let history: _ = self.deployment_history.read().await;
let region_history: Vec<_> = history.iter()
.filter(|r| r.region == region)
.collect();
if !region_history.is_empty() {
// Adjust memory based on cold start times
let avg_cold_start: f64 = region_history.iter()
.map(|r| r.cold_start_time as f64)
.sum::<f64>() / region_history.len() as f64;
if avg_cold_start > 50.0 {
// Cold start is too slow, increase memory
optimized.insert("memory".to_string(), "512MB".to_string());
optimized.insert("cpu".to_string(), "2".to_string());
} else {
// Good cold start, can optimize for cost
optimized.insert("memory".to_string(), "256MB".to_string());
optimized.insert("cpu".to_string(), "1".to_string());
}
} else {
// First deployment, use conservative settings
optimized.insert("memory".to_string(), "256MB".to_string());
optimized.insert("cpu".to_string(), "1".to_string());
}
// Enable optimizations
optimized.insert("prewarm".to_string(), "true".to_string());
optimized.insert("static_optimization".to_string(), "true".to_string());
optimized.insert("code_splitting".to_string(), "true".to_string());
// Calculate cold start before moving optimized
let estimated_cold_start: _ = self.estimate_cold_start(&optimized).await;
Ok(OptimizedConfig {
region: region.to_string(),
config: optimized,
estimated_cold_start,
})
}
/// Record deployment performance
pub async fn record_deployment(
&self,
region: &str,
cold_start_time: u64,
throughput: f64,
success_rate: f64,
) -> Result<()> {
let record: _ = DeploymentRecord {
timestamp: std::time::SystemTime::now(),
region: region.to_string(),
cold_start_time,
throughput,
success_rate,
};
{
let mut history = self.deployment_history.write().await;
history.push(record);
// Keep only last 1000 records
let to_remove: _ = if history.len() > 1000 {
history.len() - 1000
} else {
0
};
if to_remove > 0 {
history.drain(0..to_remove);
}
}
// Update performance metrics
self.update_metrics().await?;
Ok(())
}
/// Estimate cold start time based on configuration
async fn estimate_cold_start(&self, config: &HashMap<String, String>) -> u64 {
let mut estimate = 45; // Base cold start
if let Some(memory) = config.get("memory") {
match memory.as_str() {
"128MB" => estimate += 10,
"256MB" => estimate += 5,
"512MB" => estimate += 2,
_ => {}
}
}
if config.get("prewarm").map(|v| v.as_str()) == Some("true") {
estimate = (estimate as f64 * 0.6) as u64; // 40% reduction
}
estimate
}
/// Update performance metrics
async fn update_metrics(&self) -> Result<()> {
let history: _ = self.deployment_history.read().await;
if history.is_empty() {
return Ok(());
}
let cold_starts: Vec<f64> = history.iter()
.map(|r| r.cold_start_time as f64)
.collect();
let mut cold_starts_sorted = cold_starts.clone();
cold_starts_sorted.sort_by(|a, b| a.partial_cmp(b).unwrap());
let avg_cold_start: f64 = cold_starts.iter().sum::<f64>() / cold_starts.len() as f64;
let p95_index: _ = (cold_starts_sorted.len() as f64 * 0.95) as usize;
let p99_index: _ = (cold_starts_sorted.len() as f64 * 0.99) as usize;
let avg_throughput: f64 = history.iter()
.map(|r| r.throughput)
.sum::<f64>() / history.len() as f64;
{
let mut metrics = self.performance_metrics.write().await;
metrics.average_cold_start = avg_cold_start;
metrics.p95_cold_start = cold_starts_sorted[p95_index.min(cold_starts_sorted.len() - 1)];
metrics.p99_cold_start = cold_starts_sorted[p99_index.min(cold_starts_sorted.len() - 1)];
metrics.average_throughput = avg_throughput;
metrics.deployment_count = history.len() as u64;
}
Ok(())
}
/// Get performance metrics
pub async fn get_metrics(&self) -> Result<PerformanceMetrics> {
let metrics: _ = self.performance_metrics.read().await;
Ok(metrics.clone())
}
/// Get best performing regions
pub async fn get_best_regions(&self, count: usize) -> Result<Vec<String> {
let history: _ = self.deployment_history.read().await;
let mut region_scores: HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, 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(f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64), String, (f64, u64), std::collections::HashMap<String, (f64, u64), String, (f64, u64)>> = HashMap::new();
for record in history.iter() {
let score: _ = (100.0 - record.cold_start_time as f64) * record.success_rate;
let entry: _ = region_scores.entry(record.region.clone())
.or_insert((0.0, 0));
entry.0 += score;
entry.1 += 1;
}
let mut regions: Vec<_> = region_scores.into_iter()
.map(|(region, (total_score, count))| (region, total_score / count as f64))
.collect();
regions.sort_by(|a, b| b.1.partial_cmp(&a.1).unwrap());
Ok(regions.into_iter()
.take(count)
.map(|(region, _)| region)
.collect())
}
}
/// Optimized deployment configuration
#[derive(Debug, Clone)]
pub struct OptimizedConfig {
pub region: String,
pub config: HashMap<String, String>,
pub estimated_cold_start: u64,
}
#[cfg(test)]
mod tests {
#[tokio::test]
async fn test_deployment_optimizer_creation() {
let optimizer: _ = EdgeDeploymentOptimizer::new();
assert!(optimizer.deployment_history.read().await.is_empty());
}
#[tokio::test]
async fn test_optimize_deployment() {
let optimizer: _ = EdgeDeploymentOptimizer::new();
let mut base_config = HashMap::new();
base_config.insert("framework".to_string(), "react".to_string());
let optimized: _ = optimizer.optimize("us-west", &base_config).await;
assert!(optimized.is_ok());
let result: _ = optimized.unwrap();
assert!(result.config.contains_key("memory"));
assert!(result.config.contains_key("prewarm"));
}
#[tokio::test]
async fn test_record_deployment_performance() {
let optimizer: _ = EdgeDeploymentOptimizer::new();
optimizer.record_deployment("us-west", 45, 1500.0, 0.99).await.unwrap();
optimizer.record_deployment("us-west", 52, 1400.0, 0.98).await.unwrap();
let metrics: _ = optimizer.get_metrics().await.unwrap();
assert!(metrics.deployment_count > 0);
}
#[tokio::test]
async fn test_get_best_regions() {
let optimizer: _ = EdgeDeploymentOptimizer::new();
// Record better performance for us-west
optimizer.record_deployment("us-west", 35, 1800.0, 0.995).await.unwrap();
optimizer.record_deployment("us-west", 38, 1750.0, 0.993).await.unwrap();
// Record worse performance for eu-central
optimizer.record_deployment("eu-central", 55, 1200.0, 0.98).await.unwrap();
let best_regions: _ = optimizer.get_best_regions(1).await.unwrap();
assert_eq!(best_regions.len(), 1);
assert_eq!(best_regions[0], "us-west");
}
#[tokio::test]
async fn test_cold_start_estimation() {
let optimizer: _ = EdgeDeploymentOptimizer::new();
let mut config = HashMap::new();
config.insert("memory".to_string(), "512MB".to_string());
config.insert("prewarm".to_string(), "true".to_string());
let estimate: _ = optimizer.estimate_cold_start(&config).await;
assert!(estimate > 0);
assert!(estimate < 50); // Should be optimized
}
}