Split all the things.

[athoune]

The code came from https://github.com/ppshobi/psonic/blob/master/src/Ingest.php#L144

I don't understand how to compute chunk size, it's not clea in the protocol documentation

The tests pass, but doesn't test large chunk.

See #10

[athoune]

bufsize was not correctly handled. Does all connection in the collection pool has the same buffer size?

[xmonader]

bufsize was not correctly handled. Does all connection in the collection pool has the same buffer size?

Yes, all the connections for the same client have the same backend server (whose bufsize is fixed)