1. Open the charles tool and select proxy
2. Click Throttle settings in proxy to open the network settings page;
3. First check Enable Throttling, and in the Throttling preset you can select some network conditions configured by the tool by default;
4. If you do not use the configuration that comes with the tool, you can fill in the values of each parameter yourself: (Note: Configuration parameter analysis: bandwidth - bandwidth, that is, uplink and downlink data transmission speed utilization - bandwidth availability, most modern is 100% round-trip latency - the delay of the first request, in ms. MTU - the maximum transmission unit, that is, the maximum size of the TCP packet, which can more realistically simulate the TCP layer and the packetization of each transmission. Releability - Refers to the reliability of the connection. This refers to the reliability rate of 10kb. It is used to simulate network instability. Stability - connection stability will also affect bandwidth availability.)
5. If you only need to control the network for requests from some domain names during the test, check the only for selected hosts option and add hosts;
6. Enter the add hosts page, enter the specified parameters, and click OK after completing the filling;
7. Finally click OK to complete the configuration;
