[Make-wifi-fast] Make-wifi-fast Digest, Vol 21, Issue 5

Jon Pike jonpike54 at gmail.com
Sat Dec 10 03:58:17 EST 2016

OK,  back with some further testing.

Was getting very erratic test results and had been trying to figure that
out.  Much more consistent now with most users not active.

Its interesting that 2 of the 3 test sets, with all the SQM stuff
disabled,  were very good from a bufferbloat perspective,  with the third
having lots of excess latency on the upload.  Makes me wonder where the
bottleneck is in my case? Or, is DSLReports just not beating things hard

I also have a mild "burst" effect on the download, and a severe one on the
upload,  even though the cable co says "they don't do that anymore".
Currently investigating why that is.   What kind of havoc does this
behavior do to the SQM code,  or should it be immune to such?

I always have noticed that during the UL tests, when I get the 10-15mbit
burst of speed,  that even with the SQM limiting things it always
overshoots the set limit.  Is this expected,  or indicating that
something's not right?

Forgive the basic fq-codel/cake bufferbloat questions,  am trying to clear
my base platform to have better wifi-airtime test results.

DSLReport test results:

50/5mbit Cable modem - 1Gb eth to C7 - 1Gb eth to Win 10 PC (slower Core 2
& HD machine)

Early morning testing, little to no activity in the house. Kaspersky Virus
and firewall disabled. HTPPS DSLReports rather than HTTP.

SQM disabled:
DL speed 65mbits for 10s then ramps down to 53. UL speed peaks over 15mbit
for 2s then drops to 5.5 - 4.5mbit. DL latency is 50-60ms during the 65mbit
time, then drops to the 20ms range during the 53mbit portion.  UL, some
high (60-180ms) short bursts in the early time, settling down but with
bursts late in the test.  Only on the third test is there significant
bloating, UL only, for the full duration of the upload test.

http://www.dslreports.com/speedtest/7100313   as above, bloat score of A
http://www.dslreports.com/speedtest/7100619   just as good as above
http://www.dslreports.com/speedtest/7100714   bloat score of C, DL good as
above, UL bursts to 1000 and 1400ms, 300-400ms average.

With SQM enabled:                             Note that UL "overspeed" bump
is not contained by the SQM limit.

UL/DL speed setting 55000/5000kbit/s
http://www.dslreports.com/speedtest/7101220   looking rather good score A,
low overall, 20's and peaks to 50's
http://www.dslreports.com/speedtest/7101458   same
http://www.dslreports.com/speedtest/7101518   same

UL/DL speed setting 45000/4500kbit/s
http://www.dslreports.com/speedtest/7099753   bloat score A, just a few
latency spikes
http://www.dslreports.com/speedtest/7099984   same as above, a bit more
latency on UL
http://www.dslreports.com/speedtest/7100094   same as above, with avg in
the 20's and peaks in the 50's ms range

UL/DL speed setting 45000/4000kbit/s
http://www.dslreports.com/speedtest/7100974   same as above SQM settings,
a bit lower on the latency?

On Sun, Dec 4, 2016 at 8:33 AM, <
make-wifi-fast-request at lists.bufferbloat.net> wrote:

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> Today's Topics:
>    1. Re: Updated LEDE build with airtime patches (Noah Causin)
> ---------- Forwarded message ----------
> From: Noah Causin <n0manletter at gmail.com>
> To: make-wifi-fast at lists.bufferbloat.net
> Cc:
> Date: Sun, 4 Dec 2016 11:33:22 -0500
> Subject: Re: [Make-wifi-fast] Updated LEDE build with airtime patches
> Maybe your ISP gives you a burst of bandwidth and then takes it away
> shortly after.  Comcast was known for doing this with their Powerboost.
> Try these settings:
> Download: 42500
> Upload:  4000
> On 12/4/2016 5:11 AM, Jon Pike wrote:
> Here's some straight eth to router test runs.
> Wierdly, I'm getting worse performance on ethernet, than 15 minutes ago
> over the wifi link. This computer is older and slower though, and with a HD
> rather than a SSD.
> UL speed is slower overall, in the first two of the three tests,  with
> many more high latency events on the bloat graph occuring on both the DL
> and the UL.  Last one was cleaner and faster, though with a few large
> excursions.
> C7 gbit eth - gbit PC eth
> Somewhat slower Win 10 PC than the USB adapter platform.
> http://www.dslreports.com/speedtest/6881431  slow UL speeds, many high
> latency events, bloat score B
> http://www.dslreports.com/speedtest/6881473               "         "
> http://www.dslreports.com/speedtest/6881491  better than the first two,
> both in UL speed and low latency
> Hope this is helpful...
> On Sun, Dec 4, 2016 at 1:39 AM, Jon Pike <jonpike54 at gmail.com> wrote:
>> Did a new set on the same PC located on the other side of the house.
>> Will also add the requested ethernet attached PC runs later.  Just
>> discovered that you can click on the bufferbloat graph items on the
>> DSLReports Speedtest results, and they actually expand into a detailed
>> picture vs time graph.  Never knew about that!
>> I disabled my virus scanner (Kaspersky) for the first time.  Don't know
>> if the smoother and faster results are more due to that, vs maybe it's
>> pretty quiet on the home network front right now...
>> One thing I've been wondering about, is the speed setting in the SQM,
>> i.e. the 55mbit/5mbit in my case.  Is it supposed to cap the data rates
>> below the setting?  If so, why am I still getting my upload speed surge of
>> 10 or more mbit, even with it set to 5?
>> New set of tests on the C7, Toke's 11-24 build.
>> Same cake and piece of cake SQM as before, Noah's suggestion of removing
>> the extra SQM settings has been done.
>> SQM cap speeds: 55/5mbit
>> Other new change, virus scanner disabled.
>> Very smooth, near perfect speeds, only a very few high latency spikes. No
>> neighboring PC running videos, or gaming, like there was in earlier tests.
>> Maybe the upstairs roommate also wasn't as busy as well?
>> 2.4Ghz AC adapter - Netgear A6200 AC1200
>> http://www.dslreports.com/speedtest/6880534
>> http://www.dslreports.com/speedtest/6880607
>> http://www.dslreports.com/speedtest/6880642
>> 5Ghz AC adapter - Netgear A6200 AC1200
>> http://www.dslreports.com/speedtest/6880694
>> http://www.dslreports.com/speedtest/6880747
>> http://www.dslreports.com/speedtest/6880827
>> 2.4Ghz N adapter - Netgear WNA3100 N300
>> http://www.dslreports.com/speedtest/6880915
>> http://www.dslreports.com/speedtest/6880950
>> http://www.dslreports.com/speedtest/6880968
>>> ---------- Forwarded message ----------
>>> From: Noah Causin <n0manletter at gmail.com>
>>> To: make-wifi-fast at lists.bufferbloat.net
>>> Cc:
>>> Date: Fri, 2 Dec 2016 13:41:11 -0500
>>> Subject: Re: [Make-wifi-fast] Updated LEDE build with airtime patches
>>> Are you using the dual-dsthost and dual-srchost options?  If so, try
>>> removing those settings from SQM and uncheck all the checkboxes you
>>> selected to reach them.
>>> Then try a test on Ethernet with SQM on.
>>> Noah
>>> On 12/2/2016 1:14 PM, Jon Pike wrote:
>>> Hello all...
>>> Well, with medical issues, and having a busy week,  I didn't get back
>>> right away.  Here's the DSLReports Speedtest runs I took.
>>> My results here are pretty variable,  so I don't know how trustworthy
>>> they are or how worth while to you guys,  vs  FLENT runs.
>>> The lower block is using Toke's 11-18 C7 FW build,  the upper block is
>>> with the 11-24 build.
>>> Upshot,  on my Archer C7,  both ran for days with no apparent issues,
>>> on my home network.  Interesting note,  I ran both the C7 v2 and the C7
>>> v3,  both ran fine.  So, if you end up with a v3,  it shouldn't be an
>>> issue.  Further side note,  the different configuration of the v3 model,
>>> with both 2.4Ghz and 5Ghz on the external "rabbit ears" antennas, seems to
>>> have a bit stronger signal on 2.4Ghz on the other end of my house,  than
>>> the v2 model that has 3 separate, small 2.4Ghz antennas inside the box.
>>> Caveat,  my testing of that wasn't very thourough..
>>> My overall home network setup is:  Cox cable - SB6146 modem - Archer C7
>>> router - various clients.   I did testing on a PC plugged directely in a
>>> eth port of the C7,  to PC's using Netgear Netgear WNA3100  N300, and A6200
>>> AC1200 USB adapters.
>>> Below are the links to DSLReports,  on the tests.  Most have cake, and
>>> piece of cake, and Noah's suggested settings, with speed caps of 55 and 5
>>> mbit.  My cable is supposed to be 60/6,  I see 65 often, with wild speed
>>> variation on the UL, settling to 5-6mbits.
>>> I have the Speedtest settings set for hi res bufferbloat,  test time
>>> extended to 20sec, which is about as long as you can go without pushing the
>>> start of the test off the end of that graph.
>>> Let me know if this is in any way useful,  or what I can do to make it
>>> more worth looking at.  It seems so variable and random, that I wonder
>>> about the worth,  as well as you don't get a good look at what the latencey
>>> is over time,  vs FLENT.
>>> -------------------------------------------
>>> eth0 to router   -  no SQM
>>> http://www.dslreports.com/speedtest/6656688  Starts near 60, plateau
>>> 64-65 (hits 66) then drops to 52-54 at the 10sec mark. UL hits 18, before
>>> falling down to a 4.5-5.5 average  Bloat C
>>> http://www.dslreports.com/speedtest/6657058  very similar,  but bloat
>>> an A this time
>>> http://www.dslreports.com/speedtest/6657916    "        Bloat a C this
>>> time
>>> now C7 V2, with Toke 11-24 FW  SQM 55/5
>>> http://www.dslreports.com/speedtest/6659367 51.2 1.65, bloat B
>>> http://www.dslreports.com/speedtest/6659493 52.4 3.01  bloat A  peak of
>>> 300-400ms  on all including idle?
>>> --------------------------------
>>> Earlier tests with Toke's 11-18 FW,  SQM 55/5 mbits
>>> 2.4Ghz N adapter  Netgear WNA3100  N300 adapter
>>> http://www.dslreports.com/speedtest/6440808
>>> http://www.dslreports.com/speedtest/6440846
>>> http://www.dslreports.com/speedtest/6440864
>>> 2.4Ghz AC adapter  Netgear A6200 AC1200 adapter
>>> http://www.dslreports.com/speedtest/6440940
>>> http://www.dslreports.com/speedtest/6440963
>>> http://www.dslreports.com/speedtest/6440987
>>> 5Ghz AC adapter  Netgear A6200 AC1200 adapter
>>> http://www.dslreports.com/speedtest/6441015
>>> http://www.dslreports.com/speedtest/6441038
>>> http://www.dslreports.com/speedtest/6441056
>>> http://www.dslreports.com/speedtest/6441132   (first A grade of the
>>> batch)
>>> eth1 to C7
>>> http://www.dslreports.com/speedtest/6441483
>>> http://www.dslreports.com/speedtest/6441570
>>> http://www.dslreports.com/speedtest/6441586
>>> ---------- Forwarded message ----------
>>> From: Jon Pike <jonpike54 at gmail.com>
>>> To: "Toke Høiland-Jørgensen" <toke at toke.dk>
>>> Cc: make-wifi-fast at lists.bufferbloat.net
>>> Date: Fri, 25 Nov 2016 21:58:46 -0800
>>> Subject: Re: [Make-wifi-fast] Updated LEDE build with airtime patches
>>> Wish I wasn't out of town still...  I could have got some time with the
>>> new one.  Had been running the 11-18 build version of yours,  on a C7 v2 in
>>> my mixed home network enviroment.  N devices, AC devices,  a semi rogue N
>>> range extender, all running WPA2-AES.
>>> I did see some occasional large amounts of bloat,  most of the time good
>>> behavior.  Occasional odd, regular thru put drops to 1/4 speed.   I
>>> mentioned this in earlier posts,  have done some more detailed testing
>>> since,  that's at home and unavailable  till I'm home again.  You could see
>>> a few DSLReports logs in my posts.
>>> Hope that helps...
>>> _______________________________________________
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