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Re: HTTP 2.0 performance is slower than HTTP 1.1 in libcurl

From: Daniel Stenberg <>
Date: Mon, 23 May 2016 14:28:08 +0200 (CEST)

On Mon, 23 May 2016, Tatsuhiro Tsujikawa wrote:

> In my opinion, I recommend to keep using nghttp2's auto WINDOW_UPDATE
> feature while enlarging window size to 512MiB unless you'd want to implement
> custom WINDOW_UPDATE scheduler. With large WINDOW_SIZE, nghttp2 will send
> WINDOW_UPDATE less frequently (current implementation, it sends
> WINDOW_UPDATE when it receives 256MiB without sending any WINDOW_UPDATE).
> Bumping up window size of connection should be done in initialization phase,
> e.g., after nghttp2_submit_settings in http2_switched.

Right, thanks for that input. I agree that it seems like the smartest

Speaking of this (changing the window size), I was trying to find the
automated sizing logic documented on the web site but I failed,
did I just not look at the right place?

List admin:
Received on 2016-05-23