The difference between http request and http concurrency

    The number of new requests per second, which means how many new http requests can be issued per second. Concurrency per second refers to the http links that can be used at the same time per second. For example, 5 requests, the ip valid time is 20 seconds, and 5 new requests are issued in the first second, that is, 5 concurrent requests. In the second second, 5 new requests are issued, and 5 concurrent requests are added at the same time. Assuming that the 5 requests in the previous second are not closed, the total concurrency in the second second is 10. By analogy, 5 requests can support up to 5 requests * 20 seconds = 100 concurrent
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