Differential D26875

Save the current TCP pacing rate in t_pacing_rate.
ClosedPublic
Actions

Authored by jhb on Oct 19 2020, 10:20 PM.

Tags

None

Referenced Files

	Unknown Object (File)
	Fri, Feb 6, 4:52 AM

	Unknown Object (File)
	Thu, Jan 29, 2:53 AM

	Unknown Object (File)
	Sat, Jan 24, 5:48 PM

	Unknown Object (File)
	Fri, Jan 16, 11:46 PM

	Unknown Object (File)
	Jan 2 2026, 11:58 PM

	Unknown Object (File)
	Dec 29 2025, 8:17 PM

	Unknown Object (File)
	Dec 25 2025, 6:32 PM

	Unknown Object (File)
	Dec 24 2025, 5:40 PM

Subscribers

Details

Reviewers

gallatin
rrs
gnn

Group Reviewers

Commits

rS367122: Save the current TCP pacing rate in t_pacing_rate.

Diff Detail

Repository

rS FreeBSD src repository - subversion

Lint

Lint Not Applicable

Unit

Tests Not Applicable

Event Timeline

jhb created this revision.Oct 19 2020, 10:20 PM

Herald added a reviewer: transport. · View Herald TranscriptOct 19 2020, 10:20 PM

Herald added a subscriber: melifaro. · View Herald Transcript

Harbormaster completed remote builds in B34271: Diff 78476.Oct 19 2020, 10:20 PM

jhb requested review of this revision.Oct 19 2020, 10:20 PM

Having this around avoids the need to query an existing tag for a rate for TLS + rate limit tags. It also makes the race window where TLS can "miss" a rate change smaller.

One question I have is if we have to use -1 as the rate for unlimited, or if a rate value of 0 (which feels a bit more natural) would work ok? If 0 works, then I'd change this to a uint64_t.

jhb mentioned this in D26691: Support hardware rate limiting (pacing) with TLS offload..Oct 19 2020, 10:49 PM

gnn accepted this revision as: gnn.Oct 19 2020, 11:24 PM

gallatin accepted this revision.Oct 22 2020, 2:37 PM

This revision was not accepted when it landed; it landed in state Needs Review.Oct 29 2020, 12:03 AM

Closed by commit rS367122: Save the current TCP pacing rate in t_pacing_rate. (authored by jhb). · Explain Why

This revision was automatically updated to reflect the committed changes.

jhb added a commit: rS367122: Save the current TCP pacing rate in t_pacing_rate..

Herald added a subscriber: imp. · View Herald TranscriptOct 29 2020, 12:03 AM

Revision Contents
Changeset List

Path

Size

head/

sys/

netinet/

tcp_ratelimit.c

9 lines

1 line

1 line

Diff 78879

head/sys/netinet/tcp_ratelimit.c

Loading...

head/sys/netinet/tcp_subr.c

Loading...

head/sys/netinet/tcp_var.h

Loading...