Latency tuning

FixEngine::createSession

...

• SessionExtraParameters::validation_.isEnabled = false
• SessionExtraParameters::validation_. ignoreUnknownFields_
• generateCheckSum_ = false; if remote side does not validate CheckSum(10) field, user can disable calculation of this field.
• disableTCPBuffer_ = true
• socketPriority_ |= Engine::AGGRESSIVE_SEND_SOCKET_OP_PRIORITY

Session::put

• PutOptions.overrideSendingTime_ = false; With this option user should get current system time only once and copy obtained value to SendingTime and TransactTime (if defined) field.
• PreparedMessage – where it is possible user should use this class instead of FIXMessage
• If PreparedMessage is not suitable, you should reuse sent FIXMessge objects

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