====== Transport Meeting 04 May 2017 ====== * LLNW is going to stick with CUBIC for now and look at which flows should get BBR * gnn@ now has the black box code from jtl@ and rrs@ * gleb asks that people actually review https://reviews.freebsd.org/D9770 * jtl@ still to verify long fixes are in the Rack code * gnn@ has gotten a session at the [[/DevSummit|DevSummit]] for the Transport team * tuexen@ wants to finish [[https://reviews.freebsd.org/D9163]]] * jegg@ asks about pmcstat when the system is busy, jtl@ has patches to handle per-thread pmc code * jtl@ asks rstone@ about increasing HZ to 10KHz. rstone says this "just works" * kbowling@ says that they have changes for CUBIC which have gone to lstewart@ and will also go to nigel@ * rstone@ ask about exposing sbintime() to user space. This would be used in netstat(1) and some socket options such as RTO_MIN and DELACK. The socket options can take a struct timeval, but there is no reason to NOT expose sbintime() to user space. * rstone@ asks about higher frequency time stamps for TX pause in TCP. gnn@ and jtl@ suggest a new TCP option to lower granularity. There is no draft for this as yet. Once this is coded we might write our own draft.