first commit

gobench2.go

@@ -0,0 +1,234 @@
+package main
+
+import (
+	"bytes"
+	"compress/gzip"
+	"crypto/sha256"
+	"encoding/base64"
+	"encoding/binary"
+	"fmt"
+	"math"
+	"math/rand"
+	"os"
+	"runtime"
+	"sort"
+	"sync"
+	"time"
+)
+
+// Workload functions
+
+func performIntegerArithmetic(iterations int) {
+	result := 0
+	for i := 0; i < iterations; i++ {
+		result += i * i
+	}
+	_ = result
+}
+
+func performFloatingPointArithmetic(iterations int) {
+	result := 0.0
+	for i := 0; i < iterations; i++ {
+		result += math.Sin(float64(i)) * math.Cos(float64(i))
+	}
+	_ = result
+}
+
+func performSorting(iterations int) {
+	for i := 0; i < iterations; i++ {
+		data := make([]int, 100)
+		for j := range data {
+			data[j] = rand.Intn(1000)
+		}
+		sort.Ints(data)
+	}
+}
+
+func performHashing(iterations int) {
+	data := []byte("initial-hash-data")
+	for i := 0; i < iterations; i++ {
+		hash := sha256.Sum256(data)
+		data = hash[:]
+	}
+}
+
+// Compression throughput: Fixed duration
+func performCompressionThroughput(duration time.Duration) float64 {
+	data := bytes.Repeat([]byte("compress-this-data"), 10) // Data to compress (200 bytes)
+	var buf bytes.Buffer
+	totalBytes := 0
+	start := time.Now()
+
+	for {
+		buf.Reset()
+		writer := gzip.NewWriter(&buf)
+		_, err := writer.Write(data)
+		if err != nil {
+			fmt.Println("Error during compression:", err)
+			return 0
+		}
+		_ = writer.Close()
+		totalBytes += len(data)
+
+		if time.Since(start) >= duration {
+			break
+		}
+	}
+
+	elapsed := time.Since(start).Seconds()
+	return float64(totalBytes) / elapsed // Bytes per second
+}
+
+// Benchmarking
+
+func benchmark(task func(int), iterations int, cores int) float64 {
+	var wg sync.WaitGroup
+	wg.Add(cores)
+	start := time.Now()
+
+	for i := 0; i < cores; i++ {
+		go func() {
+			task(iterations / cores)
+			wg.Done()
+		}()
+	}
+
+	wg.Wait()
+	duration := time.Since(start).Seconds()
+	return float64(iterations) / duration // Return raw score
+}
+
+func humanReadable(score float64, unit string) string {
+	units := []string{"", "K", "M", "G", "T"}
+	i := 0
+	for score >= 1000 && i < len(units)-1 {
+		score /= 1000
+		i++
+	}
+	return fmt.Sprintf("%.2f %s%s", score, units[i], unit)
+}
+
+func percentageDiff(current, baseline float64) string {
+	diff := (current - baseline) / baseline * 100
+	return fmt.Sprintf("%+.2f%%", diff)
+}
+
+// Encode results into a compact binary format
+func encodeBaseline(results map[string]float64) string {
+	values := []float64{
+		results["Integer Arithmetic-single"], results["Integer Arithmetic-multi"],
+		results["Floating Point Math-single"], results["Floating Point Math-multi"],
+		results["Sorting-single"], results["Sorting-multi"],
+		results["SHA-256 Hashing-single"], results["SHA-256 Hashing-multi"],
+		results["Compression-single"],
+	}
+
+	buf := new(bytes.Buffer)
+	for _, v := range values {
+		// Scale down to save precision (e.g., fixed point)
+		scaled := int32(v / 1000) // Scale down by 1000
+		binary.Write(buf, binary.LittleEndian, scaled)
+	}
+	return base64.StdEncoding.EncodeToString(buf.Bytes())
+}
+
+// Decode a compact binary baseline
+func decodeBaseline(encoded string) (map[string]float64, error) {
+	data, err := base64.StdEncoding.DecodeString(encoded)
+	if err != nil {
+		return nil, err
+	}
+
+	values := make([]float64, 9)
+	buf := bytes.NewReader(data)
+	for i := 0; i < 9; i++ {
+		var scaled int32
+		err = binary.Read(buf, binary.LittleEndian, &scaled)
+		if err != nil {
+			return nil, err
+		}
+		values[i] = float64(scaled) * 1000 // Scale back up
+	}
+
+	return map[string]float64{
+		"Integer Arithmetic-single": values[0], "Integer Arithmetic-multi": values[1],
+		"Floating Point Math-single": values[2], "Floating Point Math-multi": values[3],
+		"Sorting-single": values[4], "Sorting-multi": values[5],
+		"SHA-256 Hashing-single": values[6], "SHA-256 Hashing-multi": values[7],
+		"Compression-single": values[8],
+	}, nil
+}
+
+func main() {
+	iterations := 1_000_000 // Adjustable workload size
+	cores := runtime.NumCPU()
+
+	workloads := map[string]func(int){
+		"Integer Arithmetic":  performIntegerArithmetic,
+		"Floating Point Math": performFloatingPointArithmetic,
+		"Sorting":             performSorting,
+		"SHA-256 Hashing":     performHashing,
+	}
+
+	// Add compression workload with fixed duration
+	compressionDuration := 3 * time.Second // Fixed duration for compression test
+	fmt.Printf("\nCompression test duration: %s\n", compressionDuration)
+
+	// Baseline comparison setup
+	var baseline map[string]float64
+	if len(os.Args) > 1 {
+		var err error
+		baseline, err = decodeBaseline(os.Args[1])
+		if err != nil {
+			fmt.Println("Error parsing baseline:", err)
+			os.Exit(1)
+		}
+	}
+
+	// Results storage
+	results := make(map[string]float64)
+
+	fmt.Println("Starting Extended CPU Benchmark...")
+
+	for name, workload := range workloads {
+		fmt.Printf("\nRunning %s benchmark...\n", name)
+
+		// Single-core benchmark
+		fmt.Println("Single-core performance:")
+		singleCoreScore := benchmark(workload, iterations, 1)
+		results[name+"-single"] = singleCoreScore
+		if baseline != nil {
+			fmt.Printf("  Single-core score: %s (%s)\n",
+				humanReadable(singleCoreScore, "ops/sec"),
+				percentageDiff(singleCoreScore, baseline[name+"-single"]))
+		} else {
+			fmt.Printf("  Single-core score: %s\n", humanReadable(singleCoreScore, "ops/sec"))
+		}
+
+		// Multi-core benchmark
+		fmt.Println("Multi-core performance:")
+		multiCoreScore := benchmark(workload, iterations, cores)
+		results[name+"-multi"] = multiCoreScore
+		if baseline != nil {
+			fmt.Printf("  Multi-core score: %s (%s) using %d cores\n",
+				humanReadable(multiCoreScore, "ops/sec"),
+				percentageDiff(multiCoreScore, baseline[name+"-multi"]),
+				cores)
+		} else {
+			fmt.Printf("  Multi-core score: %s using %d cores\n",
+				humanReadable(multiCoreScore, "ops/sec"), cores)
+		}
+	}
+
+	// Compression throughput
+	fmt.Println("\nRunning Compression throughput benchmark...")
+	singleCompressionScore := performCompressionThroughput(compressionDuration)
+	results["Compression-single"] = singleCompressionScore
+	fmt.Printf("  Single-core compression: %s\n", humanReadable(singleCompressionScore, "B/s"))
+
+	// Output compact results for future runs
+	compactResults := encodeBaseline(results)
+	fmt.Printf("\nCompact results for future comparison: %s\n", compactResults)
+
+	fmt.Println("\nExtended CPU Benchmark Completed.")
+}