[Bloat] I have a new record for bloat

Jim Gettys jg at freedesktop.org
Tue Jan 31 15:42:06 EST 2017


On Tue, Jan 31, 2017 at 3:13 PM, Dave Taht <dave.taht at gmail.com> wrote:

> On Tue, Jan 31, 2017 at 12:02 PM, Aaron Wood <woody77 at gmail.com> wrote:
> > This is wifi tethering from my OSX laptop to my iPhone, right after the
> > laptop tried to reconnect to the iphone after waking up.
> >
> > 64 bytes from 8.8.8.8: icmp_seq=0 ttl=56 time=42907.196 ms
>
> Not even close for the record as we got something like 800 seconds out
> of gogo-in-flight. But as for wifi + tethering, you "win", I guess.
>

​I measured GoGo a couple years ago at about 740 seconds(!).

IIRC, we've seen some other cellular systems with bloat at >60 seconds.

​I don't understand what I'm seeing at the moment on my Pixel XL on
T-Mobile (upstream).  I need to retake the data and post it along with the
qdisc structure on current Android, for people to mull over.
                                    - Jim
​

>
> > 64 bytes from 8.8.8.8: icmp_seq=1 ttl=56 time=41922.290 ms
> > 64 bytes from 8.8.8.8: icmp_seq=2 ttl=56 time=40971.714 ms
> > 64 bytes from 8.8.8.8: icmp_seq=3 ttl=56 time=39967.402 ms
> > 64 bytes from 8.8.8.8: icmp_seq=4 ttl=56 time=38964.115 ms
> > 64 bytes from 8.8.8.8: icmp_seq=5 ttl=56 time=37986.640 ms
> > 64 bytes from 8.8.8.8: icmp_seq=6 ttl=56 time=37026.309 ms
> > 64 bytes from 8.8.8.8: icmp_seq=7 ttl=56 time=36073.683 ms
> > 64 bytes from 8.8.8.8: icmp_seq=8 ttl=56 time=35075.141 ms
> > 64 bytes from 8.8.8.8: icmp_seq=17 ttl=56 time=26273.867 ms
> > 64 bytes from 8.8.8.8: icmp_seq=18 ttl=56 time=25268.726 ms
> > 64 bytes from 8.8.8.8: icmp_seq=19 ttl=56 time=24270.618 ms
> > 64 bytes from 8.8.8.8: icmp_seq=20 ttl=56 time=23269.550 ms
> > 64 bytes from 8.8.8.8: icmp_seq=21 ttl=56 time=22265.406 ms
> > 64 bytes from 8.8.8.8: icmp_seq=22 ttl=56 time=21264.648 ms
> > 64 bytes from 8.8.8.8: icmp_seq=23 ttl=56 time=20305.022 ms
> > 64 bytes from 8.8.8.8: icmp_seq=24 ttl=56 time=19316.740 ms
> > 64 bytes from 8.8.8.8: icmp_seq=26 ttl=56 time=17310.953 ms
> > 64 bytes from 8.8.8.8: icmp_seq=25 ttl=56 time=18316.163 ms
> > 64 bytes from 8.8.8.8: icmp_seq=27 ttl=56 time=16320.196 ms
> > 64 bytes from 8.8.8.8: icmp_seq=28 ttl=56 time=15409.592 ms
> > 64 bytes from 8.8.8.8: icmp_seq=29 ttl=56 time=14411.919 ms
> > 64 bytes from 8.8.8.8: icmp_seq=30 ttl=56 time=13505.362 ms
> > 64 bytes from 8.8.8.8: icmp_seq=31 ttl=56 time=12505.893 ms
> > 64 bytes from 8.8.8.8: icmp_seq=32 ttl=56 time=11502.744 ms
> > 64 bytes from 8.8.8.8: icmp_seq=33 ttl=56 time=10501.390 ms
> > 64 bytes from 8.8.8.8: icmp_seq=34 ttl=56 time=9560.551 ms
> > 64 bytes from 8.8.8.8: icmp_seq=35 ttl=56 time=8566.430 ms
> > 64 bytes from 8.8.8.8: icmp_seq=36 ttl=56 time=7570.286 ms
> > 64 bytes from 8.8.8.8: icmp_seq=37 ttl=56 time=6588.928 ms
> > 64 bytes from 8.8.8.8: icmp_seq=38 ttl=56 time=5643.342 ms
> > 64 bytes from 8.8.8.8: icmp_seq=39 ttl=56 time=4639.435 ms
> > 64 bytes from 8.8.8.8: icmp_seq=40 ttl=56 time=3722.169 ms
> > 64 bytes from 8.8.8.8: icmp_seq=41 ttl=56 time=2719.881 ms
> > 64 bytes from 8.8.8.8: icmp_seq=42 ttl=56 time=1806.913 ms
> > 64 bytes from 8.8.8.8: icmp_seq=43 ttl=56 time=1218.198 ms
> > 64 bytes from 8.8.8.8: icmp_seq=55 ttl=43 time=1030.052 ms
> > 64 bytes from 8.8.8.8: icmp_seq=56 ttl=43 time=638.601 ms
> > 64 bytes from 8.8.8.8: icmp_seq=57 ttl=43 time=216.295 ms
> > 64 bytes from 8.8.8.8: icmp_seq=58 ttl=43 time=200.674 ms
> > 64 bytes from 8.8.8.8: icmp_seq=59 ttl=43 time=797.261 ms
> > 64 bytes from 8.8.8.8: icmp_seq=60 ttl=43 time=992.238 ms
> > 64 bytes from 8.8.8.8: icmp_seq=61 ttl=43 time=1696.089 ms
> > 64 bytes from 8.8.8.8: icmp_seq=62 ttl=43 time=1139.896 ms
> > 64 bytes from 8.8.8.8: icmp_seq=63 ttl=43 time=588.823 ms
> > 64 bytes from 8.8.8.8: icmp_seq=64 ttl=43 time=663.070 ms
> > 64 bytes from 8.8.8.8: icmp_seq=65 ttl=43 time=782.507 ms
> > 64 bytes from 8.8.8.8: icmp_seq=66 ttl=43 time=426.705 ms
> > 64 bytes from 8.8.8.8: icmp_seq=67 ttl=43 time=220.192 ms
> > 64 bytes from 8.8.8.8: icmp_seq=68 ttl=43 time=228.405 ms
> > 64 bytes from 8.8.8.8: icmp_seq=69 ttl=43 time=130.555 ms
> > 64 bytes from 8.8.8.8: icmp_seq=70 ttl=43 time=210.779 ms
> >
> > -Aaron
> >
> > _______________________________________________
> > Bloat mailing list
> > Bloat at 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 at lists.bufferbloat.net
> https://lists.bufferbloat.net/listinfo/bloat
>
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