If an async command requires a buffer size less than or equal to asyncBufferSize, the buffer pool will be used. If an async command requires a buffer size greater than asyncBufferSize, a new single-use buffer will be created on the heap.
This field is also used to size the buffer pool for all async commands:
buffer pool size = asyncBufferSize * asyncMaxCommands
Default: 128 * 1024 (128 KB)
public int asyncBufferSize