diff --git a/swarm/network/networkid_test.go b/swarm/network/networkid_test.go
index 8e68e5b521..9d47cf9f6a 100644
--- a/swarm/network/networkid_test.go
+++ b/swarm/network/networkid_test.go
@@ -44,7 +44,7 @@ var (
 
 const (
 	NumberOfNets = 4
-	MaxTimeout   = 6
+	MaxTimeout   = 15 * time.Second
 )
 
 func init() {
@@ -146,7 +146,7 @@ func setupNetwork(numnodes int) (net *simulations.Network, err error) {
 			return nil, fmt.Errorf("create node %d rpc client fail: %v", i, err)
 		}
 		//now setup and start event watching in order to know when we can upload
-		ctx, watchCancel := context.WithTimeout(context.Background(), MaxTimeout*time.Second)
+		ctx, watchCancel := context.WithTimeout(context.Background(), MaxTimeout)
 		defer watchCancel()
 		watchSubscriptionEvents(ctx, nodes[i].ID(), client, errc, quitC)
 		//on every iteration we connect to all previous ones
diff --git a/swarm/network/simulations/overlay_test.go b/swarm/network/simulations/overlay_test.go
index 6ccdb5ce25..05d403173d 100644
--- a/swarm/network/simulations/overlay_test.go
+++ b/swarm/network/simulations/overlay_test.go
@@ -32,7 +32,7 @@ import (
 )
 
 var (
-	nodeCount = 16
+	nodeCount = 10
 )
 
 //This test is used to test the overlay simulation.
diff --git a/swarm/network/stream/snapshot_retrieval_test.go b/swarm/network/stream/snapshot_retrieval_test.go
index f097e4180a..0f20f1be06 100644
--- a/swarm/network/stream/snapshot_retrieval_test.go
+++ b/swarm/network/stream/snapshot_retrieval_test.go
@@ -151,7 +151,7 @@ func runFileRetrievalTest(nodeCount int) error {
 		return err
 	}
 
-	ctx, cancelSimRun := context.WithTimeout(context.Background(), 1*time.Minute)
+	ctx, cancelSimRun := context.WithTimeout(context.Background(), 3*time.Minute)
 	defer cancelSimRun()
 
 	result := sim.Run(ctx, func(ctx context.Context, sim *simulation.Simulation) error {
diff --git a/swarm/storage/common_test.go b/swarm/storage/common_test.go
index 23d43beccf..6955ee8279 100644
--- a/swarm/storage/common_test.go
+++ b/swarm/storage/common_test.go
@@ -83,7 +83,7 @@ func newLDBStore(t *testing.T) (*LDBStore, func()) {
 	return db, cleanup
 }
 
-func mputRandomChunks(store ChunkStore, n int, chunksize int64) ([]Chunk, error) {
+func mputRandomChunks(store ChunkStore, n int) ([]Chunk, error) {
 	return mput(store, n, GenerateRandomChunk)
 }
 
@@ -91,7 +91,7 @@ func mput(store ChunkStore, n int, f func(i int64) Chunk) (hs []Chunk, err error
 	// put to localstore and wait for stored channel
 	// does not check delivery error state
 	errc := make(chan error)
-	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	ctx, cancel := context.WithTimeout(context.Background(), 1*time.Minute)
 	defer cancel()
 	for i := int64(0); i < int64(n); i++ {
 		chunk := f(ch.DefaultSize)
@@ -159,8 +159,8 @@ func (r *brokenLimitedReader) Read(buf []byte) (int, error) {
 	return r.lr.Read(buf)
 }
 
-func testStoreRandom(m ChunkStore, n int, chunksize int64, t *testing.T) {
-	chunks, err := mputRandomChunks(m, n, chunksize)
+func testStoreRandom(m ChunkStore, n int, t *testing.T) {
+	chunks, err := mputRandomChunks(m, n)
 	if err != nil {
 		t.Fatalf("expected no error, got %v", err)
 	}
@@ -170,8 +170,8 @@ func testStoreRandom(m ChunkStore, n int, chunksize int64, t *testing.T) {
 	}
 }
 
-func testStoreCorrect(m ChunkStore, n int, chunksize int64, t *testing.T) {
-	chunks, err := mputRandomChunks(m, n, chunksize)
+func testStoreCorrect(m ChunkStore, n int, t *testing.T) {
+	chunks, err := mputRandomChunks(m, n)
 	if err != nil {
 		t.Fatalf("expected no error, got %v", err)
 	}
@@ -195,7 +195,7 @@ func testStoreCorrect(m ChunkStore, n int, chunksize int64, t *testing.T) {
 	}
 }
 
-func benchmarkStorePut(store ChunkStore, n int, chunksize int64, b *testing.B) {
+func benchmarkStorePut(store ChunkStore, n int, b *testing.B) {
 	chunks := make([]Chunk, n)
 	i := 0
 	f := func(dataSize int64) Chunk {
@@ -222,8 +222,8 @@ func benchmarkStorePut(store ChunkStore, n int, chunksize int64, b *testing.B) {
 	}
 }
 
-func benchmarkStoreGet(store ChunkStore, n int, chunksize int64, b *testing.B) {
-	chunks, err := mputRandomChunks(store, n, chunksize)
+func benchmarkStoreGet(store ChunkStore, n int, b *testing.B) {
+	chunks, err := mputRandomChunks(store, n)
 	if err != nil {
 		b.Fatalf("expected no error, got %v", err)
 	}
diff --git a/swarm/storage/ldbstore_test.go b/swarm/storage/ldbstore_test.go
index 1fe466f930..45ae09b2cb 100644
--- a/swarm/storage/ldbstore_test.go
+++ b/swarm/storage/ldbstore_test.go
@@ -79,22 +79,22 @@ func testPoFunc(k Address) (ret uint8) {
 	return uint8(Proximity(basekey, k[:]))
 }
 
-func testDbStoreRandom(n int, chunksize int64, mock bool, t *testing.T) {
+func testDbStoreRandom(n int, mock bool, t *testing.T) {
 	db, cleanup, err := newTestDbStore(mock, true)
 	defer cleanup()
 	if err != nil {
 		t.Fatalf("init dbStore failed: %v", err)
 	}
-	testStoreRandom(db, n, chunksize, t)
+	testStoreRandom(db, n, t)
 }
 
-func testDbStoreCorrect(n int, chunksize int64, mock bool, t *testing.T) {
+func testDbStoreCorrect(n int, mock bool, t *testing.T) {
 	db, cleanup, err := newTestDbStore(mock, false)
 	defer cleanup()
 	if err != nil {
 		t.Fatalf("init dbStore failed: %v", err)
 	}
-	testStoreCorrect(db, n, chunksize, t)
+	testStoreCorrect(db, n, t)
 }
 
 func TestMarkAccessed(t *testing.T) {
@@ -138,35 +138,35 @@ func TestMarkAccessed(t *testing.T) {
 }
 
 func TestDbStoreRandom_1(t *testing.T) {
-	testDbStoreRandom(1, 0, false, t)
+	testDbStoreRandom(1, false, t)
 }
 
 func TestDbStoreCorrect_1(t *testing.T) {
-	testDbStoreCorrect(1, 4096, false, t)
+	testDbStoreCorrect(1, false, t)
 }
 
 func TestDbStoreRandom_1k(t *testing.T) {
-	testDbStoreRandom(1000, 0, false, t)
+	testDbStoreRandom(1000, false, t)
 }
 
 func TestDbStoreCorrect_1k(t *testing.T) {
-	testDbStoreCorrect(1000, 4096, false, t)
+	testDbStoreCorrect(1000, false, t)
 }
 
 func TestMockDbStoreRandom_1(t *testing.T) {
-	testDbStoreRandom(1, 0, true, t)
+	testDbStoreRandom(1, true, t)
 }
 
 func TestMockDbStoreCorrect_1(t *testing.T) {
-	testDbStoreCorrect(1, 4096, true, t)
+	testDbStoreCorrect(1, true, t)
 }
 
 func TestMockDbStoreRandom_1k(t *testing.T) {
-	testDbStoreRandom(1000, 0, true, t)
+	testDbStoreRandom(1000, true, t)
 }
 
 func TestMockDbStoreCorrect_1k(t *testing.T) {
-	testDbStoreCorrect(1000, 4096, true, t)
+	testDbStoreCorrect(1000, true, t)
 }
 
 func testDbStoreNotFound(t *testing.T, mock bool) {
@@ -243,54 +243,38 @@ func TestMockIterator(t *testing.T) {
 	testIterator(t, true)
 }
 
-func benchmarkDbStorePut(n int, processors int, chunksize int64, mock bool, b *testing.B) {
+func benchmarkDbStorePut(n int, mock bool, b *testing.B) {
 	db, cleanup, err := newTestDbStore(mock, true)
 	defer cleanup()
 	if err != nil {
 		b.Fatalf("init dbStore failed: %v", err)
 	}
-	benchmarkStorePut(db, n, chunksize, b)
+	benchmarkStorePut(db, n, b)
 }
 
-func benchmarkDbStoreGet(n int, processors int, chunksize int64, mock bool, b *testing.B) {
+func benchmarkDbStoreGet(n int, mock bool, b *testing.B) {
 	db, cleanup, err := newTestDbStore(mock, true)
 	defer cleanup()
 	if err != nil {
 		b.Fatalf("init dbStore failed: %v", err)
 	}
-	benchmarkStoreGet(db, n, chunksize, b)
+	benchmarkStoreGet(db, n, b)
 }
 
-func BenchmarkDbStorePut_1_500(b *testing.B) {
-	benchmarkDbStorePut(500, 1, 4096, false, b)
+func BenchmarkDbStorePut_500(b *testing.B) {
+	benchmarkDbStorePut(500, false, b)
 }
 
-func BenchmarkDbStorePut_8_500(b *testing.B) {
-	benchmarkDbStorePut(500, 8, 4096, false, b)
+func BenchmarkDbStoreGet_500(b *testing.B) {
+	benchmarkDbStoreGet(500, false, b)
 }
 
-func BenchmarkDbStoreGet_1_500(b *testing.B) {
-	benchmarkDbStoreGet(500, 1, 4096, false, b)
+func BenchmarkMockDbStorePut_500(b *testing.B) {
+	benchmarkDbStorePut(500, true, b)
 }
 
-func BenchmarkDbStoreGet_8_500(b *testing.B) {
-	benchmarkDbStoreGet(500, 8, 4096, false, b)
-}
-
-func BenchmarkMockDbStorePut_1_500(b *testing.B) {
-	benchmarkDbStorePut(500, 1, 4096, true, b)
-}
-
-func BenchmarkMockDbStorePut_8_500(b *testing.B) {
-	benchmarkDbStorePut(500, 8, 4096, true, b)
-}
-
-func BenchmarkMockDbStoreGet_1_500(b *testing.B) {
-	benchmarkDbStoreGet(500, 1, 4096, true, b)
-}
-
-func BenchmarkMockDbStoreGet_8_500(b *testing.B) {
-	benchmarkDbStoreGet(500, 8, 4096, true, b)
+func BenchmarkMockDbStoreGet_500(b *testing.B) {
+	benchmarkDbStoreGet(500, true, b)
 }
 
 // TestLDBStoreWithoutCollectGarbage tests that we can put a number of random chunks in the LevelDB store, and
@@ -303,7 +287,7 @@ func TestLDBStoreWithoutCollectGarbage(t *testing.T) {
 	ldb.setCapacity(uint64(capacity))
 	defer cleanup()
 
-	chunks, err := mputRandomChunks(ldb, n, int64(ch.DefaultSize))
+	chunks, err := mputRandomChunks(ldb, n)
 	if err != nil {
 		t.Fatal(err.Error())
 	}
@@ -383,7 +367,7 @@ func testLDBStoreCollectGarbage(t *testing.T) {
 			putCount = roundTarget
 		}
 		remaining -= putCount
-		chunks, err := mputRandomChunks(ldb, putCount, int64(ch.DefaultSize))
+		chunks, err := mputRandomChunks(ldb, putCount)
 		if err != nil {
 			t.Fatal(err.Error())
 		}
@@ -430,7 +414,7 @@ func TestLDBStoreAddRemove(t *testing.T) {
 	defer cleanup()
 
 	n := 100
-	chunks, err := mputRandomChunks(ldb, n, int64(ch.DefaultSize))
+	chunks, err := mputRandomChunks(ldb, n)
 	if err != nil {
 		t.Fatalf(err.Error())
 	}
@@ -578,7 +562,7 @@ func TestLDBStoreCollectGarbageAccessUnlikeIndex(t *testing.T) {
 	ldb.setCapacity(uint64(capacity))
 	defer cleanup()
 
-	chunks, err := mputRandomChunks(ldb, n, int64(ch.DefaultSize))
+	chunks, err := mputRandomChunks(ldb, n)
 	if err != nil {
 		t.Fatal(err.Error())
 	}
@@ -591,7 +575,7 @@ func TestLDBStoreCollectGarbageAccessUnlikeIndex(t *testing.T) {
 			t.Fatalf("fail add chunk #%d - %s: %v", i, chunks[i].Address(), err)
 		}
 	}
-	_, err = mputRandomChunks(ldb, 2, int64(ch.DefaultSize))
+	_, err = mputRandomChunks(ldb, 2)
 	if err != nil {
 		t.Fatal(err.Error())
 	}
@@ -625,7 +609,7 @@ func TestCleanIndex(t *testing.T) {
 	ldb.setCapacity(uint64(capacity))
 	defer cleanup()
 
-	chunks, err := mputRandomChunks(ldb, n, 4096)
+	chunks, err := mputRandomChunks(ldb, n)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -756,7 +740,7 @@ func TestCleanIndex(t *testing.T) {
 	}
 
 	// check that the iterator quits properly
-	chunks, err = mputRandomChunks(ldb, 4100, 4096)
+	chunks, err = mputRandomChunks(ldb, 4100)
 	if err != nil {
 		t.Fatal(err)
 	}
diff --git a/swarm/storage/memstore_test.go b/swarm/storage/memstore_test.go
index 6850d2d69a..8aaf486a7b 100644
--- a/swarm/storage/memstore_test.go
+++ b/swarm/storage/memstore_test.go
@@ -28,32 +28,32 @@ func newTestMemStore() *MemStore {
 	return NewMemStore(storeparams, nil)
 }
 
-func testMemStoreRandom(n int, chunksize int64, t *testing.T) {
+func testMemStoreRandom(n int, t *testing.T) {
 	m := newTestMemStore()
 	defer m.Close()
-	testStoreRandom(m, n, chunksize, t)
+	testStoreRandom(m, n, t)
 }
 
-func testMemStoreCorrect(n int, chunksize int64, t *testing.T) {
+func testMemStoreCorrect(n int, t *testing.T) {
 	m := newTestMemStore()
 	defer m.Close()
-	testStoreCorrect(m, n, chunksize, t)
+	testStoreCorrect(m, n, t)
 }
 
 func TestMemStoreRandom_1(t *testing.T) {
-	testMemStoreRandom(1, 0, t)
+	testMemStoreRandom(1, t)
 }
 
 func TestMemStoreCorrect_1(t *testing.T) {
-	testMemStoreCorrect(1, 4104, t)
+	testMemStoreCorrect(1, t)
 }
 
 func TestMemStoreRandom_1k(t *testing.T) {
-	testMemStoreRandom(1000, 0, t)
+	testMemStoreRandom(1000, t)
 }
 
 func TestMemStoreCorrect_1k(t *testing.T) {
-	testMemStoreCorrect(100, 4096, t)
+	testMemStoreCorrect(100, t)
 }
 
 func TestMemStoreNotFound(t *testing.T) {
@@ -66,32 +66,24 @@ func TestMemStoreNotFound(t *testing.T) {
 	}
 }
 
-func benchmarkMemStorePut(n int, processors int, chunksize int64, b *testing.B) {
+func benchmarkMemStorePut(n int, b *testing.B) {
 	m := newTestMemStore()
 	defer m.Close()
-	benchmarkStorePut(m, n, chunksize, b)
+	benchmarkStorePut(m, n, b)
 }
 
-func benchmarkMemStoreGet(n int, processors int, chunksize int64, b *testing.B) {
+func benchmarkMemStoreGet(n int, b *testing.B) {
 	m := newTestMemStore()
 	defer m.Close()
-	benchmarkStoreGet(m, n, chunksize, b)
+	benchmarkStoreGet(m, n, b)
 }
 
-func BenchmarkMemStorePut_1_500(b *testing.B) {
-	benchmarkMemStorePut(500, 1, 4096, b)
+func BenchmarkMemStorePut_500(b *testing.B) {
+	benchmarkMemStorePut(500, b)
 }
 
-func BenchmarkMemStorePut_8_500(b *testing.B) {
-	benchmarkMemStorePut(500, 8, 4096, b)
-}
-
-func BenchmarkMemStoreGet_1_500(b *testing.B) {
-	benchmarkMemStoreGet(500, 1, 4096, b)
-}
-
-func BenchmarkMemStoreGet_8_500(b *testing.B) {
-	benchmarkMemStoreGet(500, 8, 4096, b)
+func BenchmarkMemStoreGet_500(b *testing.B) {
+	benchmarkMemStoreGet(500, b)
 }
 
 func TestMemStoreAndLDBStore(t *testing.T) {