This is a completely separate TCP stack (tcp_bbr.ko) that will be built only if you add the make options WITH_EXTRA_TCP_STACKS=1 and also include the option TCPHPTS. You can also include the RATELIMIT option if you have a NIC interface that supports hardware pacing, BBR understands how to use such a feature. Note that this commit also adds in a general purpose time-filter which allows you to have a min-filter or max-filter. A filter allows you to have a low (or high) value for some period of time and degrade slowly to another value has time passes. You can find out the details of BBR by looking at the original paper at: https://queue.acm.org/detail.cfm?id=3022184 or consult many other web resources you can find on the web referenced by "BBR congestion control". It should be noted that BBRv1 (which this is) does tend to unfairness in cases of small buffered paths, and it will usually get less bandwidth in the case of large BDP paths(when competing with new-reno or cubic flows). BBR is still an active research area and we do plan on implementing V2 of BBR to see if it is an improvement over V1. Sponsored by: Netflix Inc. Differential Revision: https://reviews.freebsd.org/D21582 |
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.github/workflows | ||
config | ||
etc | ||
include | ||
libgloss | ||
newlib | ||
texinfo | ||
winsup | ||
.appveyor.yml | ||
.gitattributes | ||
.gitignore | ||
COPYING | ||
COPYING.LIB | ||
COPYING.LIBGLOSS | ||
COPYING.NEWLIB | ||
COPYING3 | ||
COPYING3.LIB | ||
ChangeLog | ||
MAINTAINERS | ||
Makefile.def | ||
Makefile.in | ||
Makefile.tpl | ||
README | ||
README-maintainer-mode | ||
ar-lib | ||
compile | ||
config-ml.in | ||
config.guess | ||
config.rpath | ||
config.sub | ||
configure | ||
configure.ac | ||
depcomp | ||
djunpack.bat | ||
install-sh | ||
libtool.m4 | ||
ltgcc.m4 | ||
ltmain.sh | ||
ltoptions.m4 | ||
ltsugar.m4 | ||
ltversion.m4 | ||
lt~obsolete.m4 | ||
makefile.vms | ||
missing | ||
mkdep | ||
mkinstalldirs | ||
move-if-change | ||
multilib.am | ||
setup.com | ||
src-release | ||
symlink-tree | ||
test-driver | ||
ylwrap |
README
README for GNU development tools This directory contains various GNU compilers, assemblers, linkers, debuggers, etc., plus their support routines, definitions, and documentation. If you are receiving this as part of a GDB release, see the file gdb/README. If with a binutils release, see binutils/README; if with a libg++ release, see libg++/README, etc. That'll give you info about this package -- supported targets, how to use it, how to report bugs, etc. It is now possible to automatically configure and build a variety of tools with one command. To build all of the tools contained herein, run the ``configure'' script here, e.g.: ./configure make To install them (by default in /usr/local/bin, /usr/local/lib, etc), then do: make install (If the configure script can't determine your type of computer, give it the name as an argument, for instance ``./configure sun4''. You can use the script ``config.sub'' to test whether a name is recognized; if it is, config.sub translates it to a triplet specifying CPU, vendor, and OS.) If you have more than one compiler on your system, it is often best to explicitly set CC in the environment before running configure, and to also set CC when running make. For example (assuming sh/bash/ksh): CC=gcc ./configure make A similar example using csh: setenv CC gcc ./configure make Much of the code and documentation enclosed is copyright by the Free Software Foundation, Inc. See the file COPYING or COPYING.LIB in the various directories, for a description of the GNU General Public License terms under which you can copy the files. REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info on where and how to report problems.