I didn't notice that CYC_LP is about the elapsed cycles, perhaps because I was expecting a clearer counter with a unit as cycles or us. Also its "N/A" under the column "Address" may have also confused me (though it is clear now, thanks to you).

And thank you too for your advice. So I looked at the TSim51 webpage. It seems it is made originally for Linux. For Windows, it needs some other installations I am not familiar with.

I guess I have to live with this humble CYC_LP... After all, it is better than nothing ;)