The best round-trip time (RTT) depends on the specific use case and application requirements. RTT refers to the time it takes for a signal to travel from a source to a destination and back. In networking, lower RTT is generally better as it indicates faster communication and reduced latency, which is critical for real-time applications like online gaming, video conferencing, and financial transactions.
For example, in online gaming, an RTT of less than 50 milliseconds (ms) is considered excellent, as it ensures minimal lag and smooth gameplay. For general web browsing or email, an RTT of up to 200 ms is usually acceptable. In cloud computing, low RTT is essential for applications that require real-time data processing or interaction, such as machine learning model training or distributed databases.
To achieve optimal RTT, organizations often deploy resources closer to end-users using Content Delivery Networks (CDNs) or edge computing solutions. For instance, Tencent Cloud's Global Accelerator service can optimize network performance by routing traffic through the best available paths, reducing RTT and improving application responsiveness. Additionally, Tencent Cloud's edge computing services, such as Edge Computing Nodes, can bring computation closer to users, further minimizing latency.