diff --git a/benchmark/cluster/vgg16/v2_pserver.yaml b/benchmark/cluster/vgg16/v2_pserver.yaml
index dd1271e0cf399184134c06b3200ee1202c65cef0..857e2ff4557d4a638bcdeb586d9fc8978d1183df 100644
--- a/benchmark/cluster/vgg16/v2_pserver.yaml
+++ b/benchmark/cluster/vgg16/v2_pserver.yaml
@@ -23,13 +23,13 @@ spec:
         - name: PADDLE_JOB_NAME
           value: vgg16v2job
         - name: TRAINERS
-          value: "20"
+          value: "60"
         - name: PSERVERS
           value: "10"
         - name: TOPOLOGY
           value: ""
         - name: ENTRY
-          value: "python train.py"
+          value: "python -u train.py"
         - name: TRAINER_PACKAGE
           value: "/workspace"
         - name: PADDLE_INIT_PORT
diff --git a/benchmark/cluster/vgg16/v2_trainer.yaml b/benchmark/cluster/vgg16/v2_trainer.yaml
index 997bbc81c99ae642271b3ed4c5c141a5dfc5148a..be0f741b349c47e8f1978c0bc1d220284c96a53f 100644
--- a/benchmark/cluster/vgg16/v2_trainer.yaml
+++ b/benchmark/cluster/vgg16/v2_trainer.yaml
@@ -3,8 +3,8 @@ kind: Job
 metadata:
   name: vgg16v2job-trainer
 spec:
-  parallelism: 20
-  completions: 20
+  parallelism: 60
+  completions: 60
   template:
     metadata:
       labels:
@@ -24,13 +24,13 @@ spec:
         - name: BATCH_SIZE
           value: "256"
         - name: TRAINERS
-          value: "20"
+          value: "60"
         - name: PSERVERS
           value: "10"
         - name: TOPOLOGY
           value: ""
         - name: ENTRY
-          value: "cd /workspace && MKL_NUM_THREADS=1 python /workspace/vgg16_v2.py"
+          value: "cd /workspace && MKL_NUM_THREADS=1 python -u /workspace/vgg16_v2.py"
         - name: TRAINER_PACKAGE
           value: "/workspace"
         - name: PADDLE_INIT_PORT