Integrated: 8370024: HttpClient: QUIC congestion controller doesn't implement pacing

[Daniel Jeliński]

On Wed, 5 Nov 2025 18:04:39 GMT, Daniel Jeliński <djelinski at openjdk.org> wrote:

> Implement pacing for QUIC.
> 
> This is required by RFC 9002. Also, it improves the network utilization on links with long round-trip times.
> 
> The pacing algorithm itself was created based on the suggestions found in RFC 9002, and on the description of the Linux pacing algorithm.
> 
> Pacing is enabled when the round-trip time is less than twice the period at which the selector timeout fires. On Linux the selector timeout fires every millisecond, on Windows it's 15.6 milliseconds by default.
> 
> HttpClient tests came back clean.

This pull request has now been integrated.

Changeset: 1f1f7bb4
Author:    Daniel Jeliński <djelinski at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/1f1f7bb44842fac966bd8f16cc6cfeee0ea972f6
Stats:     675 lines in 7 files changed: 659 ins; 2 del; 14 mod

8370024: HttpClient: QUIC congestion controller doesn't implement pacing

Reviewed-by: dfuchs

-------------

PR: https://git.openjdk.org/jdk/pull/28156