Thanks ; I guess a decision was made to build it as a module vs included in baseline at some point. I hadn't even thought of checking modules. On Tue, 17 Mar 2020 at 22:56, Peter Robinson <pbrobinson@xxxxxxxxx> wrote: > > I noticed that the kernel builds on the branched fedora32 kernels do not > > have CONFIG_TCP_CONG_BBR set ; meaning no shiny. > > The kernel module is built: > $ modinfo tcp_bbr > filename: > /lib/modules/5.6.0-0.rc5.git0.2.fc32.x86_64/kernel/net/ipv4/tcp_bbr.ko.xz > description: TCP BBR (Bottleneck Bandwidth and RTT) > > > root@kuriiti network-scripts]# sysctl > > net.ipv4.tcp_available_congestion_control > > net.ipv4.tcp_available_congestion_control = reno cubic > > If you manually load the module it's there: > > # sysctl -a | grep tcp_available_congestion_control > net.ipv4.tcp_available_congestion_control = reno cubic > # modprobe tcp_bbr > # sysctl -a | grep tcp_available_congestion_control > net.ipv4.tcp_available_congestion_control = reno cubic bbr > > I'm not sure the "official" way to use different congestion control > algorithms but I'm guessing it's something you can use NetworkManager > to specify and autoload them. > > Peter > > -- Joel Wirāmu Pauling Senior Solutions Architect Mobile: (+64) 223608671 Email: jwp@xxxxxxxxxx <jpauling@xxxxxxxxxx> _______________________________________________ kernel mailing list -- kernel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to kernel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/kernel@xxxxxxxxxxxxxxxxxxxxxxx
