diff --git a/test-configs/01-write-1M-keys-client-variable.yaml b/test-configs/01-write-1M-keys-client-variable.yaml
index 3e779809..aad77abe 100644
--- a/test-configs/01-write-1M-keys-client-variable.yaml
+++ b/test-configs/01-write-1M-keys-client-variable.yaml
@@ -256,11 +256,11 @@ analyze_plot_list:
 
 - column: AVG-CPU
   x_axis: Second
-  y_axis: CPU(%)
+  y_axis: Average CPU(%)
 
 - column: MAX-CPU
   x_axis: Second
-  y_axis: CPU(%)
+  y_axis: Maximum CPU(%)
 
 - column: AVG-VMRSS-MB
   x_axis: Second
diff --git a/test-configs/02-write-1M-keys-best-throughput.yaml b/test-configs/02-write-1M-keys-best-throughput.yaml
index 977fc4ed..7675de96 100644
--- a/test-configs/02-write-1M-keys-best-throughput.yaml
+++ b/test-configs/02-write-1M-keys-best-throughput.yaml
@@ -256,11 +256,11 @@ analyze_plot_list:
 
 - column: AVG-CPU
   x_axis: Second
-  y_axis: CPU(%)
+  y_axis: Average CPU(%)
 
 - column: MAX-CPU
   x_axis: Second
-  y_axis: CPU(%)
+  y_axis: Maximum CPU(%)
 
 - column: AVG-VMRSS-MB
   x_axis: Second
diff --git a/test-configs/03-write-too-many-keys.yaml b/test-configs/03-write-too-many-keys.yaml
index 30865a89..17bf5a4d 100644
--- a/test-configs/03-write-too-many-keys.yaml
+++ b/test-configs/03-write-too-many-keys.yaml
@@ -256,11 +256,11 @@ analyze_plot_list:
 
 - column: AVG-CPU
   x_axis: Second
-  y_axis: CPU(%)
+  y_axis: Average CPU(%)
 
 - column: MAX-CPU
   x_axis: Second
-  y_axis: CPU(%)
+  y_axis: Maximum CPU(%)
 
 - column: AVG-VMRSS-MB
   x_axis: Second
diff --git a/test-configs/04-write-1M-keys-1000QPS.yaml b/test-configs/04-write-1M-keys-1000QPS.yaml
index 5c937df1..f75678be 100644
--- a/test-configs/04-write-1M-keys-1000QPS.yaml
+++ b/test-configs/04-write-1M-keys-1000QPS.yaml
@@ -256,11 +256,11 @@ analyze_plot_list:
 
 - column: AVG-CPU
   x_axis: Second
-  y_axis: CPU(%)
+  y_axis: Average CPU(%)
 
 - column: MAX-CPU
   x_axis: Second
-  y_axis: CPU(%)
+  y_axis: Maximum CPU(%)
 
 - column: AVG-VMRSS-MB
   x_axis: Second