...
- Acquiring Dispatch::Lock in TransportManager::WorkerSession::clientSend for every write RPC
- Cost: 3 x ~250ns~300ns
- InfRcTransport<Infiniband>::getTransmitBuffer(): waiting for free tx buffer for every write RPC
- Cost: 3 x ~200ns (first write RPC more expensive than 2nd and 3rd)
...