tree a771c5ca94c41fb9ed50283c35ac33bd5b9d19f4
parent 653f4f665b7c1ba2d4a3c650233c789ffb521425
author Nicholas S. Husin <nsh@golang.org> 1757997054 -0400
committer Nicholas Husin <nsh@golang.org> 1758316419 -0700

http2: introduce a new write scheduler based on RFC 9218 priority scheme

This change introduces a new write scheduler that prioritizes writes
based on RFC 9218. Eventually, this scheduler will be used to replace
the existing priority scheduler based on RFC 7540, which has been
deprecated in RFC 9113.

No behavioral changes has been introduced as this scheduler is not used
anywhere yet.

goos: linux
goarch: amd64
pkg: golang.org/x/net/http2
cpu: AMD EPYC 7B13
BenchmarkWriteSchedulerThroughputRoundRobin-64                            100000            140884 ns/op          139201 B/op       2900 allocs/op
BenchmarkWriteSchedulerLifetimeRoundRobin-64                              100000            149632 ns/op          139202 B/op       2900 allocs/op
BenchmarkWriteSchedulerThroughputRandom-64                                100000            218311 ns/op          139201 B/op       2900 allocs/op
BenchmarkWriteSchedulerLifetimeRandom-64                                  100000            216559 ns/op          139203 B/op       2900 allocs/op
BenchmarkWriteSchedulerThroughputPriorityRFC7540-64                       100000            587625 ns/op          139201 B/op       2900 allocs/op
BenchmarkWriteSchedulerThroughputPriorityRFC9218Incremental-64            100000            149563 ns/op          139200 B/op       2900 allocs/op
BenchmarkWriteSchedulerLifetimePriorityRFC9218Incremental-64              100000            163697 ns/op          139201 B/op       2900 allocs/op
BenchmarkWriteSchedulerThroughputPriorityRFC9218NonIncremental-64         100000            145364 ns/op          139201 B/op       2900 allocs/op
BenchmarkWriteSchedulerLifetimePriorityRFC9218NonIncremental-64           100000            159316 ns/op          139203 B/op       2900 allocs/op

For golang/go#75500

Change-Id: Id5db195f6f75970f9cc3c7b7a292df96a139de8b
Reviewed-on: https://go-review.googlesource.com/c/net/+/704758
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Nicholas Husin <husin@google.com>