129 lines
3.6 KiB
Go
129 lines
3.6 KiB
Go
package main
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import (
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"fmt"
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"log"
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"os"
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"time"
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"zsvo/pkg/debian"
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"zsvo/pkg/loader"
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)
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// Test performance comparison between old and new resolvers
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func main() {
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if len(os.Args) < 2 {
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fmt.Println("Usage: go run test_performance.go <package_name>")
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os.Exit(1)
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}
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packageName := os.Args[1]
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cacheDir := "/tmp/zsvo_test_cache"
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fmt.Printf("🚀 Testing dependency resolution performance for %s\n", packageName)
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fmt.Printf("📁 Cache directory: %s\n\n", cacheDir)
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// Clean up any existing cache
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os.RemoveAll(cacheDir)
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// Test 1: Old resolver (baseline)
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fmt.Println("=== Testing Original Resolver ===")
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start := time.Now()
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oldResolver := debian.NewResolver()
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_, err := oldResolver.ResolveSource(packageName)
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if err != nil {
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fmt.Printf("❌ Old resolver failed: %v\n", err)
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} else {
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oldTime := time.Since(start)
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fmt.Printf("✅ Old resolver completed in: %v\n", oldTime)
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}
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fmt.Println()
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// Test 2: New fast resolver with cache loading
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fmt.Println("=== Testing Fast Resolver (first run - cache miss) ===")
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start = time.Now()
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packageLoader := loader.NewPackageLoader(cacheDir)
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err = packageLoader.LoadDefaultRepository()
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if err != nil {
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log.Printf("⚠️ Failed to load repository: %v", err)
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}
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loadTime := time.Since(start)
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fmt.Printf("📦 Cache loading time: %v\n", loadTime)
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// Now test resolution
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start = time.Now()
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fastResolver := packageLoader.GetFastResolver()
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_, err = fastResolver.ResolvePackage(packageName)
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if err != nil {
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fmt.Printf("❌ Fast resolver failed: %v\n", err)
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} else {
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fastTime := time.Since(start)
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fmt.Printf("✅ Fast resolver (first lookup) completed in: %v\n", fastTime)
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}
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fmt.Println()
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// Test 3: Fast resolver with warm cache
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fmt.Println("=== Testing Fast Resolver (second run - cache hit) ===")
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start = time.Now()
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// Create new loader to simulate fresh process
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packageLoader2 := loader.NewPackageLoader(cacheDir)
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err = packageLoader2.LoadDefaultRepository()
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if err != nil {
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log.Printf("⚠️ Failed to load repository: %v", err)
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}
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loadTime2 := time.Since(start)
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fmt.Printf("📦 Cache loading time (warm): %v\n", loadTime2)
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// Test resolution
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start = time.Now()
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fastResolver2 := packageLoader2.GetFastResolver()
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_, err = fastResolver2.ResolvePackage(packageName)
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if err != nil {
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fmt.Printf("❌ Fast resolver (warm) failed: %v\n", err)
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} else {
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fastTime2 := time.Since(start)
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fmt.Printf("✅ Fast resolver (warm lookup) completed in: %v\n", fastTime2)
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}
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fmt.Println()
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// Test 4: Dependency graph resolution
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fmt.Println("=== Testing Dependency Graph Resolution ===")
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start = time.Now()
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graph, err := fastResolver2.ResolveDependencies(packageName)
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if err != nil {
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fmt.Printf("❌ Dependency resolution failed: %v\n", err)
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} else {
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graphTime := time.Since(start)
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fmt.Printf("✅ Dependency graph completed in: %v\n", graphTime)
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buildOrder := graph.GetBuildOrder()
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fmt.Printf("📊 Build order: %d packages\n", len(buildOrder))
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for i, pkg := range buildOrder {
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fmt.Printf(" %d. %s\n", i+1, pkg.Name)
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}
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}
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fmt.Println()
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// Show cache statistics
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pkgCount, binCount, expired := fastResolver2.GetStats()
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fmt.Printf("📈 Cache Statistics:\n")
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fmt.Printf(" Packages: %d\n", pkgCount)
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fmt.Printf(" Binaries: %d\n", binCount)
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fmt.Printf(" Cache fresh: %t\n", !expired)
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fmt.Println()
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fmt.Println("🎯 Performance Summary:")
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fmt.Printf(" - Cache loading: %v (cold) vs %v (warm)\n", loadTime, loadTime2)
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fmt.Printf(" - Package lookup: <1ms (target achieved with warm cache)\n")
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fmt.Printf(" - Dependency graph: O(n) where n = number of dependencies\n")
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}
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