Re: [PATCH 37/44] 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.
Eric Blake <[email protected]>
| Newsgroups | gmane.comp.lib.newlib |
|---|---|
| Message-ID | <[email protected]> |
On 08/09/2018 01:09 AM, Sebastian Huber wrote: > From: rrs <[email protected]> > Whoa, that's a long subject line. In git, remember to put a blank line between your summary (which should be around 60-70 characters) and the explanation. A much better subject line would be: tcp: add defines for use by Rack stack > Once built into your kernel, you can select this stack by either > socket option with the name of the stack is "rack" or by setting > the global sysctl so the default is rack. > > Note that any connection that does not support SACK will be kicked > back to the "default" base FreeBSD stack (currently known as "default"). > > To build this into your kernel you will need to enable in your > kernel: > makeoptions WITH_EXTRA_TCP_STACKS=1 > options TCPHPTS > > Sponsored by: Netflix Inc. > Differential Revision: https://reviews.freebsd.org/D15525 > --- -- Eric Blake, Principal Software Engineer Red Hat, Inc. +1-919-301-3266 Virtualization: qemu.org | libvirt.org