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Set the initial stream window size to 64KB and increase that to the 10MB we used to start with on the first server reply, unless a rate limit is in effect. Continously monitory changes to the transfers rate limit and adjust the stream window size accordingly. `max_recv_speed` is a transfer propert that can be changed during processing by a callback.
bagder
approved these changes
Aug 2, 2024
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Set the initial stream window size to 64KB and increase that to the 10MB we used to start with on the first server reply, unless a rate limit is in effect.
Continuously monitory changes to the transfers rate limit and adjust the stream window size accordingly.
max_recv_speedis a transfer propert that can be changed during processing by a callback.The problem with the previous start of 10MB initially is that a server may push this amount into the TCP connection. If this is the only transfer on that connection, curl will just slowly consume this, possibly leading to timeouts on the server side. With more than one transfer, the unrestricted transfer will keep in pulling data and curl needs to take in all data, possibly 10MB, of the throttled stream then without restrictions.