Topic 'Speed test vs. Comcast PowerBoost® ?' in forum 'Site Tools' - dslreports.com http://www.dslreports.com/forum/Speed-test-vs-Comcast-PowerBoostreg-22831113 en Sat, 11 Feb 2012 08:22:13 EDT Sat, 11 Feb 2012 08:22:13 EDT Re: Speed test vs. Comcast PowerBoost® ? http://www.dslreports.com/forum/Re-Speed-test-vs-Comcast-PowerBoostAcircreg-22855334 said by DMF3:

We're not talking about all Java tests
said by DMF3:

Let me explain my question a little better:

The Java Speed Test receives, then sends several chunks (one presumes files) of increasing size, from 300KB to 5MB.
What? :uhh:
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"You can observe a lot by watching". Yogi Berra]]> http://www.dslreports.com/forum/Re-Speed-test-vs-Comcast-PowerBoostAcircreg-22855334 Wed, 12 Aug 2009 13:52:23 EDT Re: Speed test vs. Comcast PowerBoost® ? http://www.dslreports.com/forum/Re-Speed-test-vs-Comcast-PowerBoostAcircreg-22855282
You've answered my question. Thanks.

Btw, the answer was, "Yes."]]> http://www.dslreports.com/forum/Re-Speed-test-vs-Comcast-PowerBoostAcircreg-22855282 Wed, 12 Aug 2009 13:44:39 EDT Re: Speed test vs. Comcast PowerBoostÃ130;® ? http://www.dslreports.com/forum/Re-Speed-test-vs-Comcast-PowerBoostAtilde130Acircreg-22840862
• Not all Java test are the same. Some use a small file and step up to a larger file. Some use one large file and others use a small file (not suitable for high bandwidth testing).

• The server does not know if you have Boost - it does not care. It just pumping the file until your box cannot take it anymore. No difference if I have a 20mb download cap, the sever just does not care.

• As I sated above: "Most ISPs who have PowerBoost or some other name, open up the flood gates when the demand is low (set by each ISP)." Some test may have Boost kicked-in and some do not.

• All speed tests have a ramp period at the beginning of th test. The speeds starts fast and then levels off and in some case it will slowdown towards the end of the test.

• The speed test is an approximation of your true speed. The whole process is averaged, it does not know or care if you have Boost kicked in or not.

• If Boost kicks in, you will usually have more time at the Boost Level; so the test will report a higher speed.
No different if I have a high download cap.
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"You can observe a lot by watching". Yogi Berra]]> http://www.dslreports.com/forum/Re-Speed-test-vs-Comcast-PowerBoostAtilde130Acircreg-22840862 Sun, 09 Aug 2009 19:18:22 EDT Re: Speed test vs. Comcast PowerBoostÃ130;® ? http://www.dslreports.com/forum/Re-Speed-test-vs-Comcast-PowerBoostAtilde130Acircreg-22836433
The Java Speed Test receives, then sends several chunks (one presumes files) of increasing size, from 300KB to 5MB. If PowerBoost is applied based on file size, then it should be applied to all save maybe (part of?) the largest upload chunk.

Thus the speed that the Speed Test is measuring is that of the boosted transfer, NOT that of much larger files, e.g. video streams.

Capice?

I think my advertised rate is 12/1.5M, but I'm not entirely sure since it's changed recently.

I'll see what I get on the other tests... ]]> http://www.dslreports.com/forum/Re-Speed-test-vs-Comcast-PowerBoostAtilde130Acircreg-22836433 Sat, 08 Aug 2009 15:29:11 EDT Re: Speed test vs. Comcast PowerBoost® ? http://www.dslreports.com/forum/Re-Speed-test-vs-Comcast-PowerBoostreg-22831362
• Most ISPs who have PowerBoost or some other name, open up the flood gates when the demand is low (set by each ISP).

• I do not understand: " Since (as I understand it) the test consists of multiple small (all less than the PowerBoost threshholds) transfers..."

• I am on Cox. With PowerBoost I get 21mb/2.5mb on a 12mb/1.5mb line.

• Each test is run on one server that is used to do the speed tests. Try running this:

Run Two Speed Tests from the two DIFFERENT cities nearest to you that are listed here: Speakeasy POPs

Also, test here »ftp://ftp1.optonline.net/test512

Note your transfer rate after about 30 seconds. Then cancel the download.

For the TWO Speakeasy Tests, Copy and Paste the speed results from those tests and note the speed from the FTP download test.
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"You can observe a lot by watching". Yogi Berra
Click for full size
]]> http://www.dslreports.com/forum/Re-Speed-test-vs-Comcast-PowerBoostreg-22831362 Fri, 07 Aug 2009 13:52:14 EDT Speed test vs. Comcast PowerBoost® ? http://www.dslreports.com/forum/Speed-test-vs-Comcast-PowerBoostreg-22831113
My question is, how does this affect the speed results here? Since (as I understand it) the test consists of multiple small (all less than the PowerBoost threshholds) transfers, am I seeing only the boosted speed? Or is this somehow accounted in the test?

(test results ~4.8M down, 2.5 up - Java test)

And where to look for how - or whether - PowerBoost actually makes a difference in various usages?

Thanks. ]]> http://www.dslreports.com/forum/Speed-test-vs-Comcast-PowerBoostreg-22831113 Fri, 07 Aug 2009 13:08:02 EDT