I also experience a big CPU load for the GUI… probably because I only have an old Geforce 2.
Anyway, you shouldn’t focus on what percentages are shown… the problem is Renoise’ CPU meter only shows the audio load (which is not really true, but at least it should) and the task manager often show 100%. This is because the GUI eats as much CPU as is left. All this makes it hard to do any fair tests…
What you can do is decrease the UI frame rate in the configs if you haven’t already. This will cause the UI to not be as responsive, but free up some resources.
Ok, I see the problem. But in fact this is normal in a way… just like a game which comsumes all CPU to show the graphics as smooth as possible.
Anyway, the frame rate setting will probably help you out. Let us know how it works out…
One thing that still surprises me a bit though is that turning off pattern follow doesn’t seem to decrease the load. That would mean redrawing only two pattern lines instead of all… (But maybe I’m wrong, it could be much more complicated than that)
by the way, the next version of ReNoise should have a faster GUI (i.e. less CPU load). It’s somehow too early to ensure this, but if you can cope with your graphics problem for now, don’t change your graphic card
another thing i noticed:
i just reinstalled windows. so everything is fresh.
is it normal that renoise shows me a cpu load of less than 5% and the windows task manager goes from around 30% to 40% ? and that with lets say: 5 tracks playing just plain samples?
no other program (FL studio) wastes so much cpu with nearly the same track amount and only samples being played.
other settings: echo mia soundcard. 128 samples latency with asio driver. windowed mode, 70 hz.