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1 // Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 /// An entrypoint used to run portions of dart2js and measure its performance. | 5 /// An entrypoint used to run portions of dart2js and measure its performance. |
6 library compiler.tool.perf; | 6 library compiler.tool.perf; |
7 | 7 |
8 import 'dart:async'; | 8 import 'dart:async'; |
9 import 'dart:io'; | 9 import 'dart:io'; |
10 | 10 |
11 import 'package:compiler/compiler_new.dart'; | 11 import 'package:compiler/compiler_new.dart'; |
| 12 import 'package:compiler/src/apiimpl.dart'; |
| 13 import 'package:compiler/src/compiler.dart'; |
| 14 import 'package:compiler/src/kernel/task.dart'; |
| 15 import 'package:compiler/src/elements/elements.dart'; |
12 import 'package:compiler/src/common.dart'; | 16 import 'package:compiler/src/common.dart'; |
13 import 'package:compiler/src/diagnostics/diagnostic_listener.dart'; | 17 import 'package:compiler/src/diagnostics/diagnostic_listener.dart'; |
14 import 'package:compiler/src/diagnostics/messages.dart' | 18 import 'package:compiler/src/diagnostics/messages.dart' |
15 show Message, MessageTemplate; | 19 show Message, MessageTemplate; |
16 import 'package:compiler/src/io/source_file.dart'; | 20 import 'package:compiler/src/io/source_file.dart'; |
17 import 'package:compiler/src/options.dart' show ParserOptions; | 21 import 'package:compiler/src/options.dart' show ParserOptions; |
18 import 'package:compiler/src/options.dart'; | 22 import 'package:compiler/src/options.dart'; |
19 import 'package:compiler/src/parser/element_listener.dart' show ScannerOptions; | 23 import 'package:compiler/src/parser/element_listener.dart' show ScannerOptions; |
20 import 'package:compiler/src/parser/listener.dart'; | 24 import 'package:compiler/src/parser/listener.dart'; |
21 import 'package:compiler/src/parser/node_listener.dart' show NodeListener; | 25 import 'package:compiler/src/parser/node_listener.dart' show NodeListener; |
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44 print('usage: perf.dart <bench-id> <entry.dart>'); | 48 print('usage: perf.dart <bench-id> <entry.dart>'); |
45 exit(1); | 49 exit(1); |
46 } | 50 } |
47 var totalTimer = new Stopwatch()..start(); | 51 var totalTimer = new Stopwatch()..start(); |
48 | 52 |
49 var bench = args[0]; | 53 var bench = args[0]; |
50 var entryUri = Uri.base.resolve(args[1]); | 54 var entryUri = Uri.base.resolve(args[1]); |
51 | 55 |
52 await setup(entryUri); | 56 await setup(entryUri); |
53 | 57 |
54 if (bench == 'scan') { | 58 var handlers = { |
55 Set<SourceFile> files = await scanReachableFiles(entryUri); | 59 'scan': () async { |
56 // TODO(sigmund): consider replacing the warmup with instrumented snapshots. | 60 Set<SourceFile> files = await scanReachableFiles(entryUri); |
57 for (int i = 0; i < 10; i++) scanFiles(files); | 61 // TODO(sigmund): replace the warmup with instrumented snapshots. |
58 } else if (bench == 'parse') { | 62 for (int i = 0; i < 10; i++) scanFiles(files); |
59 Set<SourceFile> files = await scanReachableFiles(entryUri); | 63 }, |
60 // TODO(sigmund): consider replacing the warmup with instrumented snapshots. | 64 'parse': () async { |
61 for (int i = 0; i < 10; i++) parseFiles(files); | 65 Set<SourceFile> files = await scanReachableFiles(entryUri); |
62 } else { | 66 // TODO(sigmund): replace the warmup with instrumented snapshots. |
63 print('unsupported bench-id: $bench. Please specify "scan" or "parse"'); | 67 for (int i = 0; i < 10; i++) parseFiles(files); |
| 68 }, |
| 69 'kernel_gen_e2e': () async { |
| 70 // TODO(sigmund): remove. This is used to compute the input size, we |
| 71 // should extract input size from frontend instead. |
| 72 await scanReachableFiles(entryUri); |
| 73 // TODO(sigmund): replace this warmup. Note that for very large programs, |
| 74 // the GC pressure on the VM seems to make this worse with time (maybe we |
| 75 // are leaking memory?). That's why we run it twice and not 10 times. |
| 76 for (int i = 0; i < 2; i++) await generateKernel(entryUri); |
| 77 }, |
| 78 }; |
| 79 |
| 80 var handler = handlers[bench]; |
| 81 if (handler == null) { |
64 // TODO(sigmund): implement the remaining benchmarks. | 82 // TODO(sigmund): implement the remaining benchmarks. |
| 83 print('unsupported bench-id: $bench. Please specify one of the following: ' |
| 84 '${handler.keys.join(", ")}'); |
65 exit(1); | 85 exit(1); |
66 } | 86 } |
67 | 87 await handler(); |
68 totalTimer.stop(); | 88 totalTimer.stop(); |
69 report("total", totalTimer.elapsedMicroseconds); | 89 report("total", totalTimer.elapsedMicroseconds); |
70 } | 90 } |
71 | 91 |
72 Future setup(Uri entryUri) async { | 92 Future setup(Uri entryUri) async { |
73 var inputProvider = new CompilerSourceFileProvider(); | 93 var inputProvider = new CompilerSourceFileProvider(); |
74 var sdkLibraries = await platform.load(_platformConfigUri, inputProvider); | 94 var sdkLibraries = await platform.load(_platformConfigUri, inputProvider); |
75 var packages = await findPackages(entryUri); | 95 var packages = await findPackages(entryUri); |
76 loader = new _Loader(inputProvider, sdkLibraries, packages); | 96 loader = new _Loader(inputProvider, sdkLibraries, packages); |
77 } | 97 } |
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310 return packages.resolve(uri, notFound: (_) { | 330 return packages.resolve(uri, notFound: (_) { |
311 print('$uri not found'); | 331 print('$uri not found'); |
312 }); | 332 }); |
313 } | 333 } |
314 } | 334 } |
315 | 335 |
316 class _ParserOptions implements ParserOptions { | 336 class _ParserOptions implements ParserOptions { |
317 const _ParserOptions(); | 337 const _ParserOptions(); |
318 bool get enableGenericMethodSyntax => true; | 338 bool get enableGenericMethodSyntax => true; |
319 } | 339 } |
| 340 |
| 341 generateKernel(Uri entryUri) async { |
| 342 var timer = new Stopwatch()..start(); |
| 343 var options = new CompilerOptions( |
| 344 entryPoint: entryUri, |
| 345 libraryRoot: _libraryRoot, |
| 346 packagesDiscoveryProvider: findPackages, |
| 347 platformConfigUri: _platformConfigUri, |
| 348 useKernel: true, |
| 349 verbose: false); // set to true to debug internal timings |
| 350 var inputProvider = new CompilerSourceFileProvider(); |
| 351 var diagnosticHandler = new FormattingDiagnosticHandler(inputProvider) |
| 352 ..verbose = options.verbose; |
| 353 var compiler = new MyCompiler(inputProvider, diagnosticHandler, options); |
| 354 await compiler.run(entryUri); |
| 355 timer.stop(); |
| 356 report("kernel_gen_e2e", timer.elapsedMicroseconds); |
| 357 } |
| 358 |
| 359 // We subclass compiler to skip phases and stop after creating kernel. |
| 360 class MyCompiler extends CompilerImpl { |
| 361 MyCompiler(CompilerInput provider, CompilerDiagnostics handler, |
| 362 CompilerOptions options) |
| 363 : super(provider, null, handler, options) {} |
| 364 |
| 365 /// Performs the compilation when all libraries have been loaded. |
| 366 void compileLoadedLibraries() => |
| 367 selfTask.measureSubtask("KernelCompiler.compileLoadedLibraries", () { |
| 368 computeMain(); |
| 369 mirrorUsageAnalyzerTask.analyzeUsage(mainApp); |
| 370 |
| 371 deferredLoadTask.beforeResolution(this); |
| 372 impactStrategy = backend.createImpactStrategy( |
| 373 supportDeferredLoad: deferredLoadTask.isProgramSplit, |
| 374 supportDumpInfo: options.dumpInfo, |
| 375 supportSerialization: serialization.supportSerialization); |
| 376 |
| 377 phase = Compiler.PHASE_RESOLVING; |
| 378 |
| 379 // Note: we enqueue everything in the program so we measure generating |
| 380 // kernel for the entire code, not just what's reachable from main. |
| 381 libraryLoader.libraries.forEach((LibraryElement library) { |
| 382 fullyEnqueueLibrary(library, enqueuer.resolution); |
| 383 }); |
| 384 |
| 385 backend.enqueueHelpers(enqueuer.resolution, globalDependencies); |
| 386 resolveLibraryMetadata(); |
| 387 reporter.log('Resolving...'); |
| 388 processQueue(enqueuer.resolution, mainFunction); |
| 389 enqueuer.resolution.logSummary(reporter.log); |
| 390 |
| 391 (reporter as CompilerDiagnosticReporter) |
| 392 .reportSuppressedMessagesSummary(); |
| 393 |
| 394 if (compilationFailed) { |
| 395 // TODO(sigmund): more diagnostics? |
| 396 print("compilation failed!"); |
| 397 exit(1); |
| 398 } |
| 399 |
| 400 closeResolution(); |
| 401 var program = (backend as dynamic).kernelTask.program; |
| 402 print('total libraries: ${program.libraries.length}'); |
| 403 }); |
| 404 } |
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