diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 78a0b14..06bb346 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -47,7 +47,7 @@
         <counts>
           <entry key="Dockerfile" value="75" />
           <entry key="md" value="104" />
-          <entry key="py" value="1774" />
+          <entry key="py" value="1805" />
           <entry key="sh" value="5" />
         </counts>
       </usages-collector>
@@ -56,7 +56,7 @@
           <entry key="Bash" value="5" />
           <entry key="Dockerfile" value="75" />
           <entry key="Markdown" value="104" />
-          <entry key="Python" value="1774" />
+          <entry key="Python" value="1805" />
         </counts>
       </usages-collector>
     </session>
@@ -88,10 +88,10 @@
         <entry file="file://$PROJECT_DIR$/serve.py">
           <provider selected="true" editor-type-id="text-editor">
             <state relative-caret-position="185">
-              <caret line="213" column="36" selection-start-line="213" selection-start-column="36" selection-end-line="213" selection-end-column="36" />
+              <caret line="214" column="40" selection-start-line="214" selection-start-column="40" selection-end-line="214" selection-end-column="40" />
               <folding>
                 <element signature="e#18#46#0" expanded="true" />
-                <marker date="1588326420710" expanded="true" signature="5494:5496" ph="..." />
+                <marker date="1588326738289" expanded="true" signature="5494:5496" ph="..." />
               </folding>
             </state>
           </provider>
@@ -214,7 +214,7 @@
   <component name="PropertiesComponent">
     <property name="WebServerToolWindowFactoryState" value="false" />
     <property name="aspect.path.notification.shown" value="true" />
-    <property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1588326684451" />
+    <property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1588326889173" />
     <property name="go.gopath.indexing.explicitly.defined" value="true" />
     <property name="nodejs_interpreter_path.stuck_in_default_project" value="undefined stuck path" />
     <property name="nodejs_npm_path_reset_for_default_project" value="true" />
@@ -255,16 +255,15 @@
       <option name="presentableId" value="Default" />
       <updated>1588152877746</updated>
       <workItem from="1588152880522" duration="16973000" />
-      <workItem from="1588319878551" duration="5573000" />
+      <workItem from="1588319878551" duration="5825000" />
     </task>
     <servers />
   </component>
   <component name="TimeTrackingManager">
-    <option name="totallyTimeSpent" value="22546000" />
+    <option name="totallyTimeSpent" value="22798000" />
   </component>
   <component name="ToolWindowManager">
     <frame x="0" y="0" width="1280" height="800" extended-state="0" />
-    <editor active="true" />
     <layout>
       <window_info id="Designer" order="0" />
       <window_info id="UI Designer" order="1" />
@@ -376,10 +375,10 @@
     <entry file="file://$PROJECT_DIR$/serve.py">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="185">
-          <caret line="213" column="36" selection-start-line="213" selection-start-column="36" selection-end-line="213" selection-end-column="36" />
+          <caret line="214" column="40" selection-start-line="214" selection-start-column="40" selection-end-line="214" selection-end-column="40" />
           <folding>
             <element signature="e#18#46#0" expanded="true" />
-            <marker date="1588326420710" expanded="true" signature="5494:5496" ph="..." />
+            <marker date="1588326738289" expanded="true" signature="5494:5496" ph="..." />
           </folding>
         </state>
       </provider>
diff --git a/serve.py b/serve.py
index 8c28a6e..b4602f2 100644
--- a/serve.py
+++ b/serve.py
@@ -210,10 +210,9 @@ class MyHandler(BaseHTTPRequestHandler):
 				}
 
 				with open(config.train_data_path, 'r') as f:
-					q = deque(f, config.time_step - 1)
-					df = pd.read_csv(StringIO(''.join(q)),
+					df = pd.read_csv(config.train_data_path,
 					                 usecols=['job', 'model', 'time', 'utilCPU', 'utilGPU', 'pre', 'main', 'post'])
-
+					df = df.tail(config.time_step - 1)
 					print(df)
 					df = df.append(data, ignore_index=True)
 					df.to_csv('./data/test_data.csv', index=False)