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Unified Diff: tools/tracesummary.dart

Issue 100103011: Changes to support dprof and Observatory profiler UIs (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 6 years, 12 months ago
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Index: tools/tracesummary.dart
diff --git a/tools/tracesummary.dart b/tools/tracesummary.dart
deleted file mode 100644
index 587894cec23144575023301a5f4aa190f7d0be36..0000000000000000000000000000000000000000
--- a/tools/tracesummary.dart
+++ /dev/null
@@ -1,163 +0,0 @@
-// Copyright (c) 2013, 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.
-
-// Print a summary of a profile trace.
-
-import 'dart:convert';
-import 'dart:io';
-
-class TraceSymbol {
- final String name;
- int exclusive = 0;
- int inclusive = 0;
- TraceSymbol(this.name);
-}
-
-class TraceSummary {
- final int numSymbols;
-
- Map<String, TraceSymbol> _symbols = {};
- List _events = [];
- List<TraceSymbol> _stack = [];
- List<TraceSymbol> _topExclusive = [];
- List<TraceSymbol> _topInclusive = [];
- bool _marked = false;
- int _totalSamples = 0;
-
- TraceSummary(this.numSymbols);
-
- void _processEventsFromFile(String name) {
- var file = new File(name);
- var events = [];
- try {
- var contents = file.readAsStringSync();
- events = JSON.decode(contents);
- } catch (e) {
- print('Exception for $name $e');
- }
- _processEvents(events);
- }
-
- void _processBegin(Map event) {
- var name = event['name'];
- if (name == '<no frame>') {
- return;
- }
- var symbol = _symbols[name];
- if (symbol == null) {
- symbol = new TraceSymbol(name);
- _symbols[name] = symbol;
- }
- _stack.add(symbol);
- _marked = false;
- }
-
- void _processEnd(Map event) {
- var name = event['name'];
- if (name == '<no frame>') {
- return;
- }
- var symbol = _stack.last;
- if (symbol.name != name) {
- throw new StateError('$name not found at top of stack.');
- }
- if ((_stack.length > 1) && (_marked == false)) {
- // We are transitioning from the sequence of begins to the sequence
- // of ends. Mark the symbols on the stack.
- _marked = true;
- _totalSamples++;
- // Mark all symbols except the top with an inclusive tick.
- for (int i = 1; i < _stack.length; i++) {
- _stack[i].inclusive++;
- }
- _stack.last.exclusive++;
- }
- _stack.removeLast();
- }
-
- void _processEvents(List events) {
- for (var i = 0; i < events.length; i++) {
- Map event = events[i];
- if (event['ph'] == 'M') {
- // Ignore.
- } else if (event['ph'] == 'B') {
- _processBegin(event);
- } else if (event['ph'] == 'E') {
- _processEnd(event);
- }
- }
- }
-
- void _findTopExclusive() {
- _topExclusive = _symbols.values.toList();
- _topExclusive.sort((a, b) {
- return b.exclusive - a.exclusive;
- });
- }
-
-
- void _findTopInclusive() {
- _topInclusive = _symbols.values.toList();
- _topInclusive.sort((a, b) {
- return b.inclusive - a.inclusive;
- });
- }
-
- void summarize(String input) {
- _processEventsFromFile(input);
- _findTopExclusive();
- _findTopInclusive();
- _print();
- }
-
- String _pad(String input, int minLength) {
- int length = input.length;
- for (int i = 0; i < minLength - length; i++) {
- input = ' $input';
- }
- return input;
- }
-
- static const TICKS_LENGTH = 10;
- static const PERCENT_LENGTH = 7;
-
- void _printSymbol(int t, String name) {
- String ticks = t.toString();
- ticks = _pad(ticks, TICKS_LENGTH);
- double total = (t / _totalSamples);
- String percent = (total * 100.0).toStringAsFixed(2);
- percent = _pad(percent, PERCENT_LENGTH);
- print('$ticks $percent $name');
- }
-
- void _print() {
- print('Top ${numSymbols} inclusive symbols');
- print('--------------------------');
- print(' ticks percent name');
- _topInclusive.getRange(0, numSymbols).forEach((a) {
- _printSymbol(a.inclusive, a.name);
- });
- print('');
- print('Top ${numSymbols} exclusive symbols');
- print('--------------------------');
- print(' ticks percent name');
- _topExclusive.getRange(0, numSymbols).forEach((a) {
- _printSymbol(a.exclusive, a.name);
- });
- }
-}
-
-main(List<String> arguments) {
- if (arguments.length < 1) {
- print('${Platform.executable} ${Platform.script} <input> [symbol count]');
- return;
- }
- String input = arguments[0];
- int numSymbols = 10;
- if (arguments.length >= 2) {
- numSymbols = int.parse(arguments[1]);
- }
- TraceSummary ts = new TraceSummary(numSymbols);
- ts.summarize(input);
-}
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