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justin
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Re: [Speed] Updated DSLReports Speed Test

It is defaulting to 16 streams for fiber because you are not on windows, so you don't need as many, but you're on google fiber so you need many - try setting in preferences 24 and upload can stay at 16..

DataRiker
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DataRiker

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Click for full size
I can't have 24 down and 16 up some kind of error.

24 down and 8 up will save. Can't adjust one number at a time as well, I tried that too....

Speaking of needing sleep Justin, I have to hit the hay. I'm exhausted. Good Night.

justin
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justin

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Yes 8 is the limit for up. It isn't necessary to go higher.

DataRiker
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DataRiker

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said by justin:

Yes 8 is the limit for up. It isn't necessary to go higher.

Wait I though you just told me too?

I'm still up....really going to sleep now.......

justin
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justin

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I mean to go to 18 or 24 down, Because you want to max out down don't you?
sorry if I made a typo

DataRiker
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DataRiker to Johkal

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yea. With 24 enabled i got the following:

»[Fiber Speed test: 878.86/894.91 14 ms]

Better on the download. FYI - the browser crashed on the upload the first try. Browser became slow on second attempt but passed.

Maybe a quirk on Ubuntu 14.04 with Chrome.

I don't think its an I/O issue. I've got an intel SSD with modern hardware. Strange

justin
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justin

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Feel free to leave it for now but tomorrow if you want to debug I would look at the cpu and memory usage using top and vmstat 1 and iostat 1 while the test is running to work out what if anything is getting hammered and is thus a bottleneck.

Handling 1gig of packets is quite a load (a lot of interrupts and bus contention) all by itself. Although the test log shows no strain
"37.4s 10hz drop counts f=1 ms=253"
(that is only 1 frame drop and almost no time dropped).

The other option is soon I'll have a streaming based version for firefox (chrome does not support streams for this application yet) you could try that instead it should be much lighter on memory.
Shinrin
join:2013-02-28
Gadsden, AL

Shinrin to Johkal

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»[Cable Speed test: 58.30/11.61 38 ms]

Here's mine.

Seems about right.

justin
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Someone at Microsoft, using Chrome, with a 2ms ping time to San Fran, selected "Wireless" and got this result with 12 streams.

»[WISP Speed test: 1428.43/1328.42 2 ms]

holy moly.

18.4s  stream0 mbits=91.89 (123% of 64k buffer) Los Angeles, CA, USA 1sec=96.19
18.4s  stream1 mbits=130.81 (50% of 64k buffer) San Francisco, CA, USA 1sec=157.98
18.4s  stream2 mbits=130.97 (50% of 64k buffer) San Francisco, CA, USA 1sec=155.77
18.4s  stream3 mbits=99.6 (133% of 64k buffer) Los Angeles, CA, USA 1sec=121.9
18.4s  stream4 mbits=140.44 (54% of 64k buffer) San Francisco, CA, USA 1sec=140.05
18.4s  stream5 mbits=157.63 (60% of 64k buffer) San Francisco, CA, USA 1sec=167.58
18.4s  stream6 mbits=133.83 (51% of 64k buffer) San Francisco, CA, USA 1sec=109.46
18.4s  stream7 mbits=135.1 (52% of 64k buffer) San Francisco, CA, USA 1sec=153.62
18.4s  stream8 mbits=65.09 (87% of 64k buffer) Los Angeles, CA, USA 1sec=107.27
18.4s  stream9 mbits=56.96 (76% of 64k buffer) Los Angeles, CA, USA 1sec=77.62
18.4s  stream10 mbits=141.29 (189% of 64k buffer) Los Angeles, CA, USA 1sec=119.23
18.4s  stream11 mbits=120.82 (161% of 64k buffer) Los Angeles, CA, USA 1sec=138.29
 

Johkal
Cool Cat
MVM
join:2002-11-13
Pennsyltucky

Johkal

MVM

Impressive!

DataRiker
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join:2002-05-19
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Wow. Even more impressive than the speeds is using chrome at Microsoft....

scjohnson
join:2010-07-21
Chicago, IL

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Still seeing only ~500 here, while speedtest.net is reporting over 900.

justin
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justin

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said by scjohnson:

Still seeing only ~500 here, while speedtest.net is reporting over 900.

I don't see any problem in your log and the servers you're downloading from don't have an issue either, and there are people getting well over a gig from the same cloud of machines. Here are some things to try though:
- Another browser, like Chrome
- Another PC, or a Mac at the same institution
- Look in the log and manually select just the locations that gave you the higher speeds

If that is a pain or doesn't lead anywhere, then a big help would be to download wireshark and capture the ethernet port traffic for both speed tests, two different files, and upload them to google drive or somewhere?

scjohnson
join:2010-07-21
Chicago, IL
Motorola MB8600
Ubiquiti EdgeRouter X
Apple AirPort Extreme (2013)

scjohnson

Member

said by justin:

said by scjohnson:

Still seeing only ~500 here, while speedtest.net is reporting over 900.

I don't see any problem in your log and the servers you're downloading from don't have an issue either, and there are people getting well over a gig from the same cloud of machines. Here are some things to try though:
- Another browser, like Chrome
- Another PC, or a Mac at the same institution
- Look in the log and manually select just the locations that gave you the higher speeds

If that is a pain or doesn't lead anywhere, then a big help would be to download wireshark and capture the ethernet port traffic for both speed tests, two different files, and upload them to google drive or somewhere?

This is what I got on a Mac, better but still not quite there. »[Fiber Speed test: 643.09/858.95 11 ms]

justin
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justin

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have you tried using chrome or firefox?
safari uses tons of menory by default especially on higher speeds.

scjohnson
join:2010-07-21
Chicago, IL
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scjohnson

Member

said by justin:

have you tried using chrome or firefox?
safari uses tons of menory by default especially on higher speeds.

No go on Firefox: »[Fiber Speed test: 567.91/916.51 8 ms]

justin
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1 edit

justin

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What do you get on a Chicago or 20ms away speedtest.net server?

Here is an mit.edu test done day before yesterday using Chrome + OSX and fewer download streams as well, latency 9ms to 25ms:

»[Fiber Speed test: 937.27/950.98 9 ms]

And an IE11/windows one, with much higher latencies, from 40ms+

»[Fiber Speed test: 831.18/893.79 46 ms]

scjohnson
join:2010-07-21
Chicago, IL
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scjohnson

Member

said by justin:

What do you get on a Chicago or 20ms away speedtest.net server?

Here is an mit.edu test done day before yesterday using Chrome + OSX and fewer download streams as well, latency 9ms to 25ms:

»[Fiber Speed test: 937.27/950.98 9 ms]

And an IE11/windows one, with much higher latencies, from 40ms+

»[Fiber Speed test: 831.18/893.79 46 ms]

Chose a random Chicago server: »www.speedtest.net/my-res ··· 89779543

justin
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justin

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ok I've reset your preferences back to default.

Can you do a traceroute to 162.248.92.123, and to the random chicago speedtest.net server if you know its IP? and then another firefox or chrome test using the default settings.

Also can you post anything more in this topic? because this isn't really Comcast HSI

»speedtest gigabit testing/results/debugging

edhalen
orange whip?
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edhalen to Johkal

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This test is really nice! Very accurate for me as well. Thanks to Justin for the work!


67845017 (banned)
join:2000-12-17
Naperville, IL

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67845017 (banned)

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I agree. Stellar work on this.





DataRiker
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Almost hit 950! Impressive work Justin.

Although I absolutely hate the "fuzzy" look of the results.

justin
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justin

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the fuzzy look of what?
justin

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If you set more upload streams than 16, you would have hit 945/945. Not sure if I put a cap in for firefox. Worth a try.

it was brought down to 824 because the uploads kicked off were all rolling off at the end of the upload phase, and getting restarted. With more, this would not happen.

DataRiker
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said by justin:

the fuzzy look of what?

The picture in my post. It doesn't look fuzzy to anybody else?

I was getting an error when setting more than 16, but I can try again.

justin
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justin

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Ah the power of linux+browsers and desktop.

No it doesn't. I'm not sure how to prove that though. Do you have a cellphone?

edit: I fixed the cap of 16 on upload streams when setting preferences.

DataRiker
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DataRiker

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said by justin:

Ah the power of linux+browsers and desktop.

No it doesn't. I'm not sure how to prove that though. Do you have a cellphone?

Yea, I didn't think about that. I've been in linux land too long i guess......

Its super blurry, but nothing else is.

I completely believe you, don't worry.

justin
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justin

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I don't know really why. It is just a PNG. Perhaps it was constructed with a header that throws linux. in which case it can be fixed. Do speedtest.net PNGs look fuzzy too?

DataRiker
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DataRiker

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said by justin:

I don't know really why. It is just a PNG. Perhaps it was constructed with a header that throws linux. in which case it can be fixed. Do speedtest.net PNGs look fuzzy too?

No they are crystal clear

justin
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justin

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I did an OSX PNG screen cap of your post.

Is that fuzzy or clear?