Can the Arduini IDE serial monitor fill up? Stop?

Excuse me if this is an obvious question, but I couldn't find the answer.
When using the 2.3.2 IDE's serial monitor with test code that outputs "OK, AT, OK, 0" every 30 seconds, is there a limit or maximum number of bytes that will display before the serial monitor stops? Or is it open-ended and this data is not occupying memory/buffer?

I want to leave this open and running for days for diagnostics.

Hi @Ashton.

No. It will continue displaying new data forever.

There is a buffer, but it is a rolling buffer; meaning that when the buffer fills it is the oldest data that is discarded as new data comes in rather than using a silly design where it just stops displaying new data once the buffer is full.

Thanks ptillisch