performance measurement mods:

pkg/analysis_server/benchmark/integration/log_file_input_converter.dart

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library input.transformer.log_file;
 
 import 'dart:convert';
 
 import 'package:analyzer/src/generated/java_engine.dart';
 import 'package:logging/logging.dart';
 
 import 'input_converter.dart';
 import 'operation.dart';
 
 const CONNECTED_MSG_FRAGMENT = ' <= {"event":"server.connected"';
 final int NINE = '9'.codeUnitAt(0);
 const RECEIVED_FRAGMENT = ' <= {';
 const SENT_FRAGMENT = ' => {';
 final int ZERO = '0'.codeUnitAt(0);
 
 /**
  * [LogFileInputConverter] converts a log file stream
  * into a series of operations to be sent to the analysis server.
  */
 class LogFileInputConverter extends CommonInputConverter {
-  LogFileInputConverter(String tmpSrcDirPath, Map<String, String> srcPathMap,
-      {int diagnosticPort})
-      : super(tmpSrcDirPath, srcPathMap, diagnosticPort: diagnosticPort);
+  LogFileInputConverter(String tmpSrcDirPath, PathMap srcPathMap)
+      : super(tmpSrcDirPath, srcPathMap);
 
   @override
   Operation convert(String line) {
     try {
       String timeStampString = _parseTimeStamp(line);
       String data = line.substring(timeStampString.length);
       if (data.startsWith(RECEIVED_FRAGMENT)) {
         Map<String, dynamic> json = JSON.decode(data.substring(4));
         if (json.containsKey('event')) {
           return convertNotification(json);
@@ skipping 37 matching lines @@
     while (index < line.length) {
       int code = line.codeUnitAt(index);
       if (code < ZERO || NINE < code) {
         return line.substring(0, index);
       }
       ++index;
     }
     return line;
   }
 }