sort-cli: add benchmark

lru/lru_test.go

@@ -1,6 +1,7 @@
 package lru
 
 import (
+	"fmt"
 	"github.com/stretchr/testify/assert"
 	"testing"
 	"time"
@@ -76,3 +77,24 @@ func TestDummy(t *testing.T)  { // for coverage 100% coverage
 	cache := New[int](0)
 	cache.evict()
 }
+
+// We will be storing many short strings as the key and value
+func Benchmark(b *testing.B) {
+	cache := New[string](10)
+	ttl := 1000 * time.Millisecond
+
+	b.Run("Set", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			cache.Set(fmt.Sprintf("item:%d", i), fmt.Sprintf("item:%d", i), ttl)
+		}
+	})
+
+	b.Run("Get", func(b *testing.B) {
+		for i := 0; i < b.N; i++ {
+			value, ok := cache.Get(fmt.Sprintf("item:%d", i))
+			if ok {
+				_ = value
+			}
+		}
+	})
+}