Make deferred tracing less expensive (real-time cost is the same)

1 files changed, 11 insertions, 0 deletions

diff --git a/tests/benchmarks/declarative/qperformancetimer/tst_qperformancetimer.cpp b/tests/benchmarks/declarative/qperformancetimer/tst_qperformancetimer.cpp
index 04737e7..497a556 100644
--- a/tests/benchmarks/declarative/qperformancetimer/tst_qperformancetimer.cpp
+++ b/tests/benchmarks/declarative/qperformancetimer/tst_qperformancetimer.cpp
@@ -54,6 +54,7 @@ private slots:
     void all();
     void startElapsed();
     void doubleElapsed();
+    void trace();
 };
 
 void tst_qperformancetimer::all()
@@ -84,6 +85,16 @@ void tst_qperformancetimer::doubleElapsed()
     }
 }
 
+void tst_qperformancetimer::trace()
+{
+    QString s("A decent sized string of text here.");
+    QBENCHMARK {
+        QByteArray data;
+        QDataStream ds(&data, QIODevice::WriteOnly);
+        ds << (qint64)100 << (int)5 << (int)5 << s;
+    }
+}
+
 QTEST_MAIN(tst_qperformancetimer)
 
 #include "tst_qperformancetimer.moc"