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Reduce CPU load of test parsing

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Use a thread pool with reduced max thread count.

Task-number: QTCREATORBUG-18185
Change-Id: I18bd3de82365edaf21d8dcf9c89035da1ac74756
Reviewed-by: Christian Stenger <christian.stenger@qt.io>
This commit is contained in:
Eike Ziller
2017-05-16 11:15:57 +02:00
parent 2dd48a2080
commit 83b8c8fc15
4 changed files with 106 additions and 39 deletions
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5
src/plugins/autotest/testcodeparser.cpp
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@@ -59,7 +59,8 @@ using namespace ProjectExplorer;
TestCodeParser::TestCodeParser(TestTreeModel *parent)
: QObject(parent),
m_model(parent)
m_model(parent),
m_threadPool(new QThreadPool(this))
{
// connect to ProgressManager to postpone test parsing when CppModelManager is parsing
auto progressManager = qobject_cast<Core::ProgressManager *>(Core::ProgressManager::instance());
@@ -78,6 +79,7 @@ TestCodeParser::TestCodeParser(TestTreeModel *parent)
connect(this, &TestCodeParser::parsingFinished, this, &TestCodeParser::releaseParserInternals);
m_reparseTimer.setSingleShot(true);
connect(&m_reparseTimer, &QTimer::timeout, this, &TestCodeParser::parsePostponedFiles);
m_threadPool->setMaxThreadCount(std::max(QThread::idealThreadCount()/4, 1));
}
TestCodeParser::~TestCodeParser()
@@ -404,6 +406,7 @@ void TestCodeParser::scanForTests(const QStringList &fileList, ITestParser *pars
parseFileForTests(codeParsers, fi, file);
},
Utils::MapReduceOption::Unordered,
m_threadPool,
QThread::LowestPriority);
m_futureWatcher.setFuture(future);
if (list.size() > 5) {