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make microbenchmark logging verbose (#12858)

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* make microbenchmark logging verbose

* prefix JSON so it can be parsed in verbose mode
This commit is contained in:
Yegor 2017-11-02 18:11:34 -07:00 committed by GitHub
parent 616a2ad6da
commit 35bb855c0d
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 11 additions and 7 deletions
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10
dev/benchmarks/microbenchmarks/lib/common.dart
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@ -39,9 +39,13 @@ class BenchmarkResultPrinter {
/// for computer consumption and once formatted as plain text for humans.
void printToStdout() {
// IMPORTANT: keep these values in sync with dev/devicelab/bin/tasks/microbenchmarks.dart
print('================ RESULTS ================');
print(_printJson());
print('================ FORMATTED ==============');
const String jsonStart = '================ RESULTS ================';
const String jsonEnd = '================ FORMATTED ==============';
const String jsonPrefix = ':::JSON:::';
print(jsonStart);
print('$jsonPrefix ${_printJson()}');
print(jsonEnd);
print(_printPlainText());
}

8
dev/devicelab/lib/tasks/microbenchmarks.dart
View File

@ -33,8 +33,9 @@ TaskFunction createMicrobenchmarkTask() {
await prepareProvisioningCertificates(appDir.path);
return await _startFlutter(
options: <String>[
'--profile',
'-v',
// --release doesn't work on iOS due to code signing issues
'--profile',
'-d',
device.deviceId,
benchmarkPath,
@ -72,6 +73,7 @@ Future<Map<String, double>> _readJsonResults(Process process) {
// IMPORTANT: keep these values in sync with dev/benchmarks/microbenchmarks/lib/common.dart
const String jsonStart = '================ RESULTS ================';
const String jsonEnd = '================ FORMATTED ==============';
const String jsonPrefix = ':::JSON:::';
bool jsonStarted = false;
final StringBuffer jsonBuf = new StringBuffer();
final Completer<Map<String, double>> completer = new Completer<Map<String, double>>();
@ -83,7 +85,6 @@ Future<Map<String, double>> _readJsonResults(Process process) {
stderr.writeln('[STDERR] $line');
});
int prefixLength = 0;
bool processWasKilledIntentionally = false;
final StreamSubscription<String> stdoutSub = process.stdout
.transform(const Utf8Decoder())
@ -93,7 +94,6 @@ Future<Map<String, double>> _readJsonResults(Process process) {
if (line.contains(jsonStart)) {
jsonStarted = true;
prefixLength = line.indexOf(jsonStart);
return;
}
@ -106,7 +106,7 @@ Future<Map<String, double>> _readJsonResults(Process process) {
}
if (jsonStarted)
jsonBuf.writeln(line.substring(prefixLength));
jsonBuf.writeln(line.substring(line.indexOf(jsonPrefix) + jsonPrefix.length));
});
process.exitCode.then<int>((int code) {