[Question] ETM data loss due to limited buffer size of sink device

Hi Mathieu & Suzuki,

Here is a question about the amount of data traced by ETM device.

In high-CPU-utilization scene, volume of ETM trace data may be very large, but limited buffer in sink device which is used to store trace data can not hold all of these data. It seems that data loss in sink device is inevitable.

So how could we ensure the data we are interested in isn't lost, or what we can do to reduce this kind of data loss?

Any response will be highly appreciated.

Thanks, Qi