en Copyright 2015 Java http://172.16.0.5:8080/history/freebsd-14.2/sys/modules/tcp/rack/Makefile#031beb4e sys: Remove $FreeBSD$: one-line sh patternRemove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/ List of files: /freebsd-14.2/sys/modules/tcp/rack/Makefile Wed, 16 Aug 2023 17:54:58 +0000 Warner Losh <imp@FreeBSD.org> http://172.16.0.5:8080/history/freebsd-14.2/sys/modules/tcp/rack/Makefile#030434ac Update rack to the latest code used at NF.There have been many changes to rack over the last couple of years, including: a) Ability when switching stacks to have one stack query another. b) Internal use of micro-second timers instead of ticks. c) Many changes to pacing in forms of 1) Improvements to Dynamic Goodput Pacing (DGP) 2) Improvements to fixed rate paciing 3) A new feature called hybrid pacing where the requestor can get a combination of DGP and fixed rate pacing with deadlines for delivery that can dynamically speed things up. d) All kinds of bugs found during extensive testing and use of the rack stack for streaming video and in fact all data transferred by NFReviewed by: glebius, gallatin, tuexenSponsored By: Netflix Inc.Differential Revision: https://reviews.freebsd.org/D39402 List of files: /freebsd-14.2/sys/modules/tcp/rack/Makefile Tue, 04 Apr 2023 20:05:46 +0000 Randall Stewart <rrs@FreeBSD.org> http://172.16.0.5:8080/history/freebsd-14.2/sys/modules/tcp/rack/Makefile#73ee5756 Fixes in the tcp infrastructure with respect to stack changes as well as other infrastructure updates for incoming rack features.So stack switching as always been a bit of a issue. We currently use a break before make setup which means thatif something goes wrong you have to try to get back to a stack. This patch among a lot of other things changes that sothat it is a make before break. We also expand some of the function blocks in prep for new features in rack that will allowmore controlled pacing. We also add other abilities such as the pathway for a stack to query a previous stack to acquire fromit critical state information so things in flight don't get dropped or mis-handled when switching stacks. We also add theconcept of a timer granularity. This allows an alternate stack to change from the old ticks granularity to microseconds andof course this even gives us a pathway to go to nanosecond timekeeping if we need to (something for the data center to considerfor sure).Once all this lands I will then update rack to begin using all these new features.Reviewed by: tuexenSponsored by: Netflix IncDifferential Revision: https://reviews.freebsd.org/D39210 List of files: /freebsd-14.2/sys/modules/tcp/rack/Makefile Sat, 01 Apr 2023 05:46:38 +0000 Randall Stewart <rrs@FreeBSD.org> http://172.16.0.5:8080/history/freebsd-14.2/sys/modules/tcp/rack/Makefile#eaabc937 tcp: retire TCPDEBUGThis subsystem is superseded by modern debugging facilities,e.g. DTrace probes and TCP black box logging.We intentionally leave SO_DEBUG in place, as many utilities mayset it on a socket. Also the tcp::debug DTrace probes look atthis flag on a socket.Reviewed by: gnn, tuexenDiscussed with: rscheff, rrs, jtlDifferential revision: https://reviews.freebsd.org/D37694 List of files: /freebsd-14.2/sys/modules/tcp/rack/Makefile Wed, 14 Dec 2022 17:54:06 +0000 Gleb Smirnoff <glebius@FreeBSD.org> http://172.16.0.5:8080/history/freebsd-14.2/sys/modules/tcp/rack/Makefile#8f997207 rack/bbr: fix standalone kernel module build List of files: /freebsd-14.2/sys/modules/tcp/rack/Makefile Sat, 09 Jul 2022 05:04:44 +0000 Gleb Smirnoff <glebius@FreeBSD.org> http://172.16.0.5:8080/history/freebsd-14.2/sys/modules/tcp/rack/Makefile#3b0b41e6 This commit updates rack to what is basically being used at NF aswell as sets in some of the groundwork for committing BBR. Thehpts system is updated as well as some other needed utilitiesfor the entrance of BBR. This is actually part 1 of 3 moreneeded commits which will finally complete with BBRv1 beingadded as a new tcp stack.Sponsored by: Netflix Inc.Differential Revision: https://reviews.freebsd.org/D20834 List of files: /freebsd-14.2/sys/modules/tcp/rack/Makefile Wed, 10 Jul 2019 20:40:39 +0000 Randall Stewart <rrs@FreeBSD.org> http://172.16.0.5:8080/history/freebsd-14.2/sys/modules/tcp/rack/Makefile#401e8707 Take out the stack alias inadvertantly added by my commit.Reported by: Peter Lei List of files: /freebsd-14.2/sys/modules/tcp/rack/Makefile Thu, 07 Jun 2018 20:57:12 +0000 Randall Stewart <rrs@FreeBSD.org> http://172.16.0.5:8080/history/freebsd-14.2/sys/modules/tcp/rack/Makefile#89e560f4 This commit brings in a new refactored TCP stack called Rack.Rack includes the following features: - A different SACK processing scheme (the old sack structures are not used). - RACK (Recent acknowledgment) where counting dup-acks is no longer done instead time is used to knwo when to retransmit. (see the I-D) - TLP (Tail Loss Probe) where we will probe for tail-losses to attempt to try not to take a retransmit time-out. (see the I-D) - Burst mitigation using TCPHTPS - PRR (partial rate reduction) see the RFC.Once built into your kernel, you can select this stack by eithersocket option with the name of the stack is "rack" or by settingthe global sysctl so the default is rack.Note that any connection that does not support SACK will be kickedback to the "default" base FreeBSD stack (currently known as "default").To build this into your kernel you will need to enable in yourkernel: makeoptions WITH_EXTRA_TCP_STACKS=1 options TCPHPTSSponsored by: Netflix Inc.Differential Revision: https://reviews.freebsd.org/D15525 List of files: /freebsd-14.2/sys/modules/tcp/rack/Makefile Thu, 07 Jun 2018 18:18:13 +0000 Randall Stewart <rrs@FreeBSD.org>