diff --git a/mace/ops/depthwise_conv_2d_benchmark.cc b/mace/ops/depthwise_conv_2d_benchmark.cc
index 71dca4cc212428a16de996344a06e5ed3ebfb1c5..b8b277c088f6fd88dbae36f3863ead840286dc43 100644
--- a/mace/ops/depthwise_conv_2d_benchmark.cc
+++ b/mace/ops/depthwise_conv_2d_benchmark.cc
@@ -39,7 +39,7 @@ static void DepthwiseConv2d(int iters,
   net.AddRandomInput<D, float>("Input", {batch, channels, height, width});
   net.AddRandomInput<D, float>("Filter",
                             {output_channels, channels, kernel_h, kernel_w});
-  net.AddRandomInput<D, float>("Bias", {output_channels});
+  net.AddRandomInput<D, float>("Bias", {output_channels*channels});
 
   // Warm-up
   for (int i = 0; i < 5; ++i) {
@@ -73,16 +73,16 @@ static void DepthwiseConv2d(int iters,
   BM_DEPTHWISE_CONV_2D_MACRO(N, C, H, W, KH, KW, S, P, OC, TYPE, NEON);\
   BM_DEPTHWISE_CONV_2D_MACRO(N, C, H, W, KH, KW, S, P, OC, TYPE, OPENCL);
 
-BM_DEPTHWISE_CONV_2D(1, 64, 32, 32, 3, 3, 1, VALID, 128, float);
-BM_DEPTHWISE_CONV_2D(1, 64, 33, 31, 3, 3, 1, VALID, 128, float);
-BM_DEPTHWISE_CONV_2D(1, 64, 32, 32, 3, 3, 1, SAME, 128, float);
-BM_DEPTHWISE_CONV_2D(1, 64, 33, 31, 3, 3, 1, SAME, 128, float);
-BM_DEPTHWISE_CONV_2D(1, 3, 512, 512, 3, 3, 1, VALID, 3, float);
-BM_DEPTHWISE_CONV_2D(1, 3, 512, 512, 3, 3, 1, SAME, 3, float);
-BM_DEPTHWISE_CONV_2D(1, 64, 32, 32, 3, 3, 2, VALID, 128, float);
-BM_DEPTHWISE_CONV_2D(1, 64, 33, 31, 3, 3, 2, VALID, 128, float);
-BM_DEPTHWISE_CONV_2D(1, 64, 32, 32, 3, 3, 2, SAME, 128, float);
-BM_DEPTHWISE_CONV_2D(1, 64, 33, 31, 3, 3, 2, SAME, 128, float);
-BM_DEPTHWISE_CONV_2D(1, 3, 512, 512, 3, 3, 2, VALID, 3, float);
-BM_DEPTHWISE_CONV_2D(1, 3, 512, 512, 3, 3, 2, SAME, 3, float);
+BM_DEPTHWISE_CONV_2D(1, 64, 32, 32, 3, 3, 1, VALID, 2, float);
+BM_DEPTHWISE_CONV_2D(1, 64, 33, 31, 3, 3, 1, VALID, 2, float);
+BM_DEPTHWISE_CONV_2D(1, 64, 32, 32, 3, 3, 1, SAME, 2, float);
+BM_DEPTHWISE_CONV_2D(1, 64, 33, 31, 3, 3, 1, SAME, 2, float);
+BM_DEPTHWISE_CONV_2D(1, 3, 512, 512, 3, 3, 1, VALID, 1, float);
+BM_DEPTHWISE_CONV_2D(1, 3, 512, 512, 3, 3, 1, SAME, 1, float);
+BM_DEPTHWISE_CONV_2D(1, 64, 32, 32, 3, 3, 2, VALID, 2, float);
+BM_DEPTHWISE_CONV_2D(1, 64, 33, 31, 3, 3, 2, VALID, 2, float);
+BM_DEPTHWISE_CONV_2D(1, 64, 32, 32, 3, 3, 2, SAME, 2, float);
+BM_DEPTHWISE_CONV_2D(1, 64, 33, 31, 3, 3, 2, SAME, 2, float);
+BM_DEPTHWISE_CONV_2D(1, 3, 512, 512, 3, 3, 2, VALID, 1, float);
+BM_DEPTHWISE_CONV_2D(1, 3, 512, 512, 3, 3, 2, SAME, 1, float);
 }  //  namespace mace