How to run on GNOME, instead of KDE? It's possible?
I am confused. What is the issue? It always was possible to
run GNOME applications in KDE and KDE applications in a GNOME
environment. Even the look and feel nowadays is the same.
So in your GNOME terminal, type "kcachegrind". It should work,
if you have it installed with dependencies (this only needs KDE
libraries/runtime, not the whole KDE desktop).