Optimize: Use property-indices instead of names for notifications.

This reduces the traffic as the indices are usually much smaller than
the property names.

As such, the benchPropertyUpdates gets a speed boost of about 9% (or
10ms vs. 11ms). As we need to transmit the index during initialization
that degrades its performance slightly by ca. 4% (13ms vs. 12.5ms).

Considering that the initialization only takes place once whereas
the property updates potentially often, this is a good tradeoff.

Change-Id: If7df3e360f1528b7d7aa26c63ce851363ae9fd6a
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/tests/webchannel/tst_webchannel.cpp b/tests/webchannel/tst_webchannel.cpp
index 698b5e2..3b90744 100644
--- a/tests/webchannel/tst_webchannel.cpp
+++ b/tests/webchannel/tst_webchannel.cpp
@@ -164,6 +164,7 @@ void TestWebChannel::testInfoForObject()
         QJsonArray expected;
         {
             QJsonArray property;
+            property.append(obj.metaObject()->indexOfProperty("objectName"));
             property.append(QStringLiteral("objectName"));
             {
                 QJsonArray signal;
@@ -176,6 +177,7 @@ void TestWebChannel::testInfoForObject()
         }
         {
             QJsonArray property;
+            property.append(obj.metaObject()->indexOfProperty("foo"));
             property.append(QStringLiteral("foo"));
             {
                 QJsonArray signal;
@@ -186,6 +188,7 @@ void TestWebChannel::testInfoForObject()
         }
         {
             QJsonArray property;
+            property.append(obj.metaObject()->indexOfProperty("asdf"));
             property.append(QStringLiteral("asdf"));
             {
                 QJsonArray signal;
@@ -198,6 +201,7 @@ void TestWebChannel::testInfoForObject()
         }
         {
             QJsonArray property;
+            property.append(obj.metaObject()->indexOfProperty("bar"));
             property.append(QStringLiteral("bar"));
             {
                 QJsonArray signal;