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Re: Total http/2 concurrency for multiplexed multi-handle

From: Daniel Stenberg via curl-library <curl-library_at_lists.haxx.se>
Date: Thu, 9 Feb 2023 13:31:19 +0100 (CET)

On Thu, 9 Feb 2023, Jeroen Ooms wrote:

> OK, I had expected multiplexing to replace the need for
> multi-connections.

It does up to the point where the connection is "full" of streams and you ask
for even more transfers. Then libcurl creates a new connection. Unless you
limit the number of connections it can use.

> Do browsers still make multiple connections to hosts that support http/2
> multiplex?

My guess: browsers probably only do that in certain situations but mostly no.

> Perhaps a desirable default would be to do one or another, but not both?

If you want to limit the number of used connections, libcurl offers the
options to do so. Or you can wait with adding some of the transfer(s). The
default libcurl behavior is generally to perform the transfer you ask for
sooner rather than later.

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Received on 2023-02-09