On Wed, Nov 23, 2016 at 11:42 AM, David Lang <da...@lang.hm> wrote: > Most people not only aren't operating at 1Gb/sec, they can't buy a 1Gb/sec > line at any cost.
I too have seen the bursty behavior that OP is describing. It's one reason why cake's estimator can't get a good result on cable. > > 100Mb is getting more common, but the majority of people cannot buy a line > this fast for any amount of money. > > 10-30 Mb is probably the range that "most people" have, with a large number > stll having <10Mb available, no matter what they are willing to pay > > David Lang > > On Wed, 23 Nov 2016, Benjamin Cronce wrote: > >> I meant the actual physical link, not the provisioned rate. Most last mile >> tech encapsulates Ethernet frames into larger super-frames. Decapsulating >> the Ethernet frames is pretty much at 1Gb line rate. On my GPON link, with >> shaping in PFSense turned off, I regularly see 4,000+ 1500byte datagrams >> at >> full 1Gb link rate hitting my WAN before my ISP starts shaping to my >> 150Mb/s average. When I had a cable modem, I would see similar, except >> instead of a constant 1Gb/s, I would see bursts of multiple packets, then >> a >> small pause, but eventually the packets started to get more and more >> spaced >> as the provisioned average started to kick in. I assumed this was because >> my DOCSIS3 8x bonded link could only max out around 300Mb/s, even though >> my >> provisioned rate was only 30Mb/s. >> >> It really depended on the quantum of the shaping algorithm, calculated >> average window size, and how elastic or strict it was. >> >> Ahh, packet packing, what a fun problem. >> >> On Wed, Nov 23, 2016 at 12:38 PM, David Lang <da...@lang.hm> wrote: >> >>> On Wed, 23 Nov 2016, Benjamin Cronce wrote: >>> >>> Most people only have a 1Gb network link, >>>> >>>> >>> >>> umm, no, most people have FAR slower links, by an order or two of >>> magnatude. >>> >>> David Lang >>> >> > _______________________________________________ > Bloat mailing list > Bloat@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/bloat -- Dave Täht Let's go make home routers and wifi faster! With better software! http://blog.cerowrt.org _______________________________________________ Bloat mailing list Bloat@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/bloat