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Re: The size of curl internal data cache

From: Daniel Stenberg via curl-library <>
Date: Fri, 6 Oct 2023 09:14:48 +0200 (CEST)

On Fri, 6 Oct 2023, Maxim Dzhura via curl-library wrote:

> There is a mention of data cache in the curl_easy_pause documentation. What
> does control the cache maximum capacity in the case of http 1.1 and 2, i.e.
> how big can it be when a transfer is paused for long? Is there any relation
> to the http2 window flow-control? Unfortunately, I could not find an answer
> in everything curl or curl documentation.

Yes, libcurl might need to cache an entire worth of "stream window" when you
pause the transfer. With h1 it will "only" cache as much as a download buffer

I created to clarify this in the
curl_easy_pause man page.

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Received on 2023-10-06