Can startMethodTracing () return an error if the buffer is full?

Question

Debug.startMethodTracing() uses a buffer size of 8 MB by default. I have a few questions about this buffer.

• Is an error caused when filling the buffer to capacity or just stop recording?
• Does the buffer remain fixed 8 MB regardless of how much or little data is written to it?
• If I manually specify the bufferSize parameter, what are the units? B MB?
• I tried to increase the size of my buffer to 20 MB or so, and the application exits. I need to record about 20 calculations in seconds in real time. Is there a way to log more data than 20 MB or so? I assume that it is first stored in memory, otherwise there would be no problem storing it on an SD card.

Answer 1

I did some tests and found:

• If the buffer fills the tank, the following message is displayed with a LogCat message at the "info" level: TRACE STOPPED (NOTE: overflowed buffer): writing X records

• The buffer ranges from 0 to 8 MB depending on how much data is written.

• The bufferSize parameter bufferSize specified in bytes.

• To increase the number of emulated devices, open AVD Manager and edit your virtual device. Press the new hardware button and select Device Size. On my machine, the largest I could enter was 1GB (value 1000).