I see from the iccrg preso at 7 minutes 55 s in, that there is a test described as:
20 BBRv2 flows starting each 100ms, 1G, 1ms Linux codel with ECN ce_threshold at 242us sojurn time. I interpret this as 20 flows, starting 100ms apart on a 1G link with a 1ms transit time and linux codel with ce_threshold 242us 0) This is iperf? There is no crypto? 1) "sojourn time" not as as setting the codel target to 242us? I tend to mentally tie the concept of sojourn time to the target variable, not ce_threshold 2) In our current SCE work we have repurposed ce_threshold to do sce instead (to save on cpu and also to make it possible to fiddle without making a userspace api change). Should we instead create a separate sce_threshold option to allow for backward compatible usage? 3) Transit time on your typical 1G link is actually 13us for a big packet, why 1ms? is that 1ms from netem? 4) What is the topology here? host -> qdisc -> wire -> host? host -> qdisc -> wire -> router -> host? 5) What was the result with fq_codel instead? -- Dave Täht CTO, TekLibre, LLC http://www.teklibre.com Tel: 1-831-205-9740 _______________________________________________ Flent-users mailing list Flent-users@flent.org http://flent.org/mailman/listinfo/flent-users_flent.org
