enqueue transactions in parallel from p2p #173
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Description
Enqueuing a transaction into the txpool, it costs about 80us per transaction to call
txpool.Add(tx), within which thetxpool.addLocked(tx)costs only 15us.So by calling
txpool.Add(tx)in parallel, we can improve the performance oftxpool.Add(tx)from 12KTPS to 60KTPS:It helps a lot when the traffic is heavy and a lot of transactions are accumulated in the broadcasting caches, like "p2p buffers", TCP read buffer and TCP write buffers.