diff -r cfcbf08528c4 -r 2b40d63a9c3d qtmobility/examples/sensors/accel_perf/README
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/qtmobility/examples/sensors/accel_perf/README	Fri Apr 16 15:51:22 2010 +0300
@@ -0,0 +1,11 @@
+Note that this really belongs in a unit test that builds the library
+since it depends on a change to the library.
+
+For this to work accurately a check in QSensorBackend::newReadingAvailable()
+needs to be commented out while building the library. The check is:
+
+    if (d->updatePolicy == QSensor::PolledUpdates)
+        return; // We don't emit the signal if we're polling
+
+With this check in place, the use of sensor.poll() to measure performance
+does not work.