An occasional flash of red might be OK, but meters consistently “in the red” indicates overload, which you will hear as crackling and drop-outs in the output audio. In general, short green bars are good, and red is bad.

Above 100%, the amount of red will get progressively longer, maxing out at 150%. At 100%, the green bar reaches almost all the way to the right-hand end, and a tiny bit of red will be shown. As the percentage gets longer, the length of the green bar gets longer. How much less it actually takes is a good measure of performance of the system.Įach of Unify's layer CPU meters indicate how long that layer takes to process, as a percentage of the available buffer time. To ensure no interruptions, each buffer MUST be processed in less than this amount of time. For example, at 44100 samples/second, 256 samples represents about 5.8 milliseconds we can call this the “buffer time”. 256), which corresponds to a certain amount of time. Modern CPUs handle multitasking situations by splitting processes between. Computer audio systems process audio data in chunks called “buffers”, each containing a certain number of samples (e.g. Its important to remember that high CPU usage while multitasking can be normal.

What is a cpu meter