Bad performance when using only one socket
Today I try to move on new version `1.4.7` and got a really bad results. So I figure out that big problem when using only one socket connection, there are too many messages from miners (online miners count 3-3.5K handled by two proxies) and proxy can't send a large amount of messages to the pool in a time. And we have a long time to auth and hash submission. And result is some miners can't start (not authed and without job) and another can't send hash in time.