<![CDATA[Execution time of the particular function]]>Hi,
Is there any tool to find out the execution time of the particular function in qt.

Thanks.

]]>https://forum.qt.io/topic/9480/execution-time-of-the-particular-functionRSS for NodeFri, 06 Mar 2026 14:30:18 GMTWed, 14 Sep 2011 04:47:54 GMT60<![CDATA[Reply to Execution time of the particular function on Wed, 14 Sep 2011 11:28:25 GMT]]>Hi,
Thank u very much. I ll find more about that tool.

]]>https://forum.qt.io/post/109191https://forum.qt.io/post/109191Wed, 14 Sep 2011 11:28:25 GMT<![CDATA[Reply to Execution time of the particular function on Wed, 14 Sep 2011 11:21:32 GMT]]>What is your ultimate goal? Do you want to hunt for bottlenecks in your application, or are you actually interested in the time a function took at runtime when the application is on your user's machine? In the first case, I suggest you use a tool like valgrind instead. In the second case, QTime will do just fine. Just do something like this:

@
QTime timer;
timer.start()
myLongFunction();
int runtime = timer.elapsed(); //gets the runtime in ms
@

]]>https://forum.qt.io/post/109189https://forum.qt.io/post/109189Wed, 14 Sep 2011 11:21:32 GMT<![CDATA[Reply to Execution time of the particular function on Wed, 14 Sep 2011 11:09:12 GMT]]>This i have tried out. It ll be fine if i get any tool to do this work.

]]>https://forum.qt.io/post/109187https://forum.qt.io/post/109187Wed, 14 Sep 2011 11:09:12 GMT<![CDATA[Reply to Execution time of the particular function on Wed, 14 Sep 2011 06:01:54 GMT]]>"QTime":http://doc.qt.nokia.com/latest/qtime.html#elapsed should do the trick too.

]]>https://forum.qt.io/post/109097https://forum.qt.io/post/109097Wed, 14 Sep 2011 06:01:54 GMT<![CDATA[Reply to Execution time of the particular function on Wed, 14 Sep 2011 05:35:09 GMT]]>Hi,
Thanks for fast reply.Im using Qt 4.4 but those classes are introduced in 4.7. Any other solution?

]]>https://forum.qt.io/post/109091https://forum.qt.io/post/109091Wed, 14 Sep 2011 05:35:09 GMT<![CDATA[Reply to Execution time of the particular function on Wed, 14 Sep 2011 05:13:45 GMT]]>You can use "QElapsedTimer":http://doc.qt.nokia.com/latest/qelapsedtimer.html or "Q_BENCHMARK":http://doc.qt.nokia.com/latest/qtest.html#QBENCHMARK of the "QtTest":http://doc.qt.nokia.com/latest/qtest.html module, which allows for measuring various performance metrics (Walltime, tick counter, Valgrind/Callgrind, Event Counter).

]]>https://forum.qt.io/post/109088https://forum.qt.io/post/109088Wed, 14 Sep 2011 05:13:45 GMT