Why CPU Overloaded in Cubase?

Hi,
My CPU usage is about 30% in Task Manager, but 100% in Cubase. What’s the problem?
Thank you for your help.

The Audio Performance meter in Cubase is not a CPU meter, it is an indication of how efficient your computer is at playing back and rendering audio in real time. there are many reasons why your meter can peak. Slow hard drive, inefficient mother board, lack of memory, heavy VSTi using one core of your CPU, it could be any of these reasons. Try disabling some VST effects or instruments and see if you can work out which one. Make sure your power settings are set to always on. Its not all about CPU head room. Have Fun :slight_smile:

Increase the asio buffer size.

Not enough information! When does it start to max out? When you start an empty template or after you load like a 1000 instrument tracks?

cubase does not know how to share resources or load balance…

This could mean that if you have one channel with some very heavy vsts, (yes, just one channel) if will give you this overload… - It cannot share one channel with multiple cores/cpus… - a problem that will have to be solved at some point but now cubase 10 is a more pressing problem…

example: you can have hundreds of tracks with vsts and it will run fine… but if you have 1 channel with super heavy vsts, you will get an overload…

so, for a short answer to your question: it is not coded as well as it should be…

how it should be:


(balancing system = resource manager/distributor)
edit: i retract the bad coded part- because who could have foretold that vsts would become so cpu intensive over time… now steinberg needs to adjust to the current time…)

Thank you for your comments.
I used some plug-ins for 20 vocal tracks at 96kHz. It works fine if I turn off several plug-ins or convert to 48 kHz, but I can’t believe my computer is having such a hard time.

I’m using high performance mode, high asio guard, full buffer size.

Take a look: https://www.steinberg.net/forums/viewtopic.php?f=283&t=141259
Maybe this explains many things about your performance.

I’ve got the same issue over here on my i9 Intel 16 core… Nuendo is peaking my actual cpu usage is 15%(monitoring program) all running on nmve drives which show about 5 % utilization (monitoring program) with 124 gig memory. I take the same project setup with plugins put it in Studio one… and it is at 15% cpu utilization and works fine… yea…not a machine problem… its Nuendo Problem. Please fix this because I’m not going to fight with this much longer. I just want to make music and at this point I going to use what works with consistency…