Compute and display tasks input timings.

pkg/analysis_server/lib/src/status/get_handler.dart

Index: pkg/analysis_server/lib/src/status/get_handler.dart
diff --git a/pkg/analysis_server/lib/src/status/get_handler.dart b/pkg/analysis_server/lib/src/status/get_handler.dart
index d4b406baaa63bdffb6c1cc289c01606f6c87a269..d0ff880c288f0a1023a267452bfb42857df0b545 100644
--- a/pkg/analysis_server/lib/src/status/get_handler.dart
+++ b/pkg/analysis_server/lib/src/status/get_handler.dart
@@ -35,6 +35,7 @@ import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/generated/utilities_collection.dart';
 import 'package:analyzer/src/generated/utilities_general.dart';
 import 'package:analyzer/src/task/dart.dart';
+import 'package:analyzer/src/task/driver.dart';
 import 'package:analyzer/src/task/html.dart';
 import 'package:analyzer/src/task/options.dart';
 import 'package:analyzer/task/dart.dart';
@@ -556,6 +557,48 @@ class GetHandler {
               classes: [null, "right", "right", "right"]);
           buffer.write('</table>');
         });
+        //
+        // Write task model inputs timing information.
+        //
+        {
+          buffer.write('<p><b>Task inputs performace data</b></p>');
+          buffer.write(
+              '<table style="border-collapse: separate; border-spacing: 10px 5px;">');
+          _writeRow(
+              buffer,
+              [
+                'Task Name',
+                'Count',
+                'Total Time (in ms)',
+                'Average Time (in ms)'
+              ],
+              header: true);
+
+          Map<String, int> countMap = WorkItem.countMap;
+          Map<String, Stopwatch> stopwatchMap = WorkItem.stopwatchMap;
+          List<String> taskClasses = stopwatchMap.keys.toList();
+          taskClasses.sort((String first, String second) =>
+              first.toString().compareTo(second.toString()));
+          taskClasses.forEach((String taskClass) {
+            int count = countMap[taskClass];
+            if (count == null) {
+              count = 0;
+            }
+            int taskTime = stopwatchMap[taskClass].elapsedMilliseconds;
+            _writeRow(buffer, [
+              taskClass.toString(),
+              count,
+              taskTime,
+              count <= 0 ? '-' : (taskTime / count).toStringAsFixed(3)
+            ], classes: [
+              null,
+              "right",
+              "right",
+              "right"
+            ]);
+          });
+          buffer.write('</table>');
+        }
       });
     });
   }