diff --git a/internal/raw/raw_test.go b/internal/raw/raw_test.go
index 5619c13..552a694 100644
--- a/internal/raw/raw_test.go
+++ b/internal/raw/raw_test.go
@@ -3,11 +3,14 @@ package raw
 import (
 	"context"
 	"math/rand"
+	"runtime"
+	"runtime/debug"
 	"testing"
 	"time"
 )
 
 func TestStartFlooding(t *testing.T) {
+	debug.SetGCPercent(-1)
 	srcIps := getIps()
 	srcPorts := getPorts()
 	macAddrs := getMacAddrs()
@@ -52,8 +55,10 @@ func TestStartFlooding(t *testing.T) {
 			case <-ctx.Done():
 				cancel()
 				t.Logf("context closed, caseName=%s, floodType=%s, floodMilliSeconds=%d\n", tc.name, tc.floodType, tc.floodMilliSeconds)
+				runtime.GC()
 			case <-time.After(120 * time.Second):
 				t.Log("overslept")
+				runtime.GC()
 			}
 		})
 	}