Number of concurrent connections

Number of concurrent connections SBC (Simultaneous Browser Connections) The number of concurrent connections means that the client initiates a request to the server and establishes a TCP connection. The total number of TCP connections to the server per second is the number of concurrent connections. Number of requests QPS (Query Per Second)/RPS (Request Per Second) There are two abbreviations for the number of requests, which can be called QPS or RPS. The unit is how many requests per second. Query=query, also equivalent to request. The number of requests refers to the fact that the client sends GET/POST/HEAD packets to the http service after the connection is established, and there are two situations after the server returns the request result: The http data packet header contains the word Close, which closes this TCP connection; The header of the http data packet contains the word KeepAlive, the connection is not closed this time, and the request can continue to be sent to the http service through the connection, which is used to reduce the number of concurrent TCP connections. How to measure server performance? Usually, what we test is QPS, which is the number of requests per second. However, in order to…