1.4.5.2

EdgeNode/internal/utils/ttlcache/utils_test.go

@@ -0,0 +1,52 @@
+package ttlcache_test
+
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/utils/testutils"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/ttlcache"
+	"github.com/TeaOSLab/EdgeNode/internal/utils/zero"
+	"github.com/cespare/xxhash/v2"
+	"runtime"
+	"strconv"
+	"testing"
+)
+
+func TestHashCollision(t *testing.T) {
+	var m = map[uint64]zero.Zero{}
+
+	var count = 1_000
+	if testutils.IsSingleTesting() {
+		count = 100_000_000
+	}
+
+	for i := 0; i < count; i++ {
+		var k = ttlcache.HashKeyString(strconv.Itoa(i))
+		_, ok := m[k]
+		if ok {
+			t.Fatal("collision at", i)
+		}
+		m[k] = zero.New()
+	}
+
+	t.Log(len(m), "elements")
+}
+
+func BenchmarkHashKey_Bytes(b *testing.B) {
+	runtime.GOMAXPROCS(1)
+	for i := 0; i < b.N; i++ {
+		ttlcache.HashKeyBytes([]byte("HELLO,WORLDHELLO,WORLDHELLO,WORLDHELLO,WORLDHELLO,WORLDHELLO,WORLD"))
+	}
+}
+
+func BenchmarkHashKey_String(b *testing.B) {
+	runtime.GOMAXPROCS(1)
+	for i := 0; i < b.N; i++ {
+		ttlcache.HashKeyString("HELLO,WORLDHELLO,WORLDHELLO,WORLDHELLO,WORLDHELLO,WORLDHELLO,WORLD")
+	}
+}
+
+func BenchmarkHashKey_XXHash(b *testing.B) {
+	runtime.GOMAXPROCS(1)
+	for i := 0; i < b.N; i++ {
+		xxhash.Sum64String("HELLO,WORLDHELLO,WORLDHELLO,WORLDHELLO,WORLDHELLO,WORLDHELLO,WORLD")
+	}
+}