Update mem/buffer_pool_internal_test.go

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: arjan-bal

mem/buffer_pool_internal_test.go

@@ -99,11 +99,11 @@ func BenchmarkTieredPool(b *testing.B) {
 	})
 
 	b.Run("pool=BinaryTiered", func(b *testing.B) {
-		pool, err := NewBinaryTieredBufferPool(defaultBufferPoolSizeExponents...)
-		p := pool.(*binaryTieredBufferPool)
-		if err != nil {
-			b.Fatalf("Faield to create buffer pool: %v", err)
-		}
+                pool, err := NewBinaryTieredBufferPool(defaultBufferPoolSizeExponents...)
+                if err != nil {
+                        b.Fatalf("Failed to create buffer pool: %v", err)
+                }
+                p := pool.(*binaryTieredBufferPool)
 		for b.Loop() {
 			for size := range 1 << 19 {
 				_ = p.poolForGet(size)