1.87Mbps (What Gives, AT&T?)

As we all know, AT&T has a history of trying to gouge its unlimited data customers.  AT&T discontinued unlimited wireless data plans a few years ago, and would undoubtedly enjoy having the remaining grandfathered unlimited users become tiered data customers.

Despite this general attitude, AT&T has made surprising decisions, like the decision to allow the transfer of unlimited data plans to the new LTE iPads.  At the time the news was reported, it was stated that the iPad unlimited users would remain unthrottled for the time being.  There were no guarantees made regarding the future of their unthrottled status, but it put iPad customers in a better position than iPhone customers, who are actively being throttled after 5GB of LTE usage.

Since I got my iPad 3, I’ve been enjoying my unlimited data privilege, reminding myself periodically that it is a privilege which AT&T feels like they can take away from me at some unspecified future date.  I regularly use anywhere between 6GB and 12GB of data in a billing cycle, and I had yet to be subject to any throttling on LTE or HSDPA+ 4G.

That is, until last night.  Last night, I received a video Skype call from a friend while connected to HSDPA+ 4G.   I answered with my front facing webcam, generating what was probably a rather sizable stream of data in the download and upload direction.   I was on the video call for about an hour, which is longer than I’ve ever been on a video call while on my cellular data.  Afterwards, on a whim, I decided to run a speed test.

att-steady

My result was not particularly fast… it was 1.87Mbps.  I can typically get anywhere from 6-10Mbps on my HSDPA+ connection.  So, on a whim, I ran another speed test… 1.87Mbps again.  Hmm, that’s strange.

att-1.87mbit

I am still not sure what caused this phenomenon, but it definitely looks like some kind of throttling to me.

1.87Mbps is 1914.88Kbps… so I suspect it’s possible that a cap somewhere set to 2000Kbps could cause this speed test result.

I decided to power cycle my cellular radio in my iPad.  Upon reconnecting to the AT&T network, I found that my speeds had returned to normal.

att-7.47mbit

 

att-8.46mbit

 

So, if this is a bandwidth throttle from AT&T, why was it activated?  I decided to take a look at my data usage.

att-data-usage

It was eerily close to 5GB of usage.  But then why was the throttle reset when I power cycled my cellular radio?  This may be a mystery I will never have an answer to.  I suppose it’s possible that a glitch on my specific cell tower could have caused the phenomenon in the first place, and power cycling created a new data session, or connected me to a different cell tower.

I would be interested to learn if other AT&T users have ever seen a 1.87Mbps throttle.   AT&T has a page explaining their data usage policies for unlimited smartphone customers, but at the time of this writing, the page does not discuss tablet customers, and does not mention specific throttle speeds.

For now, I will continue using my data normally, and continue keeping my eye out for throttling.

 

Newly found DVD limit…

Apparently DVD’s hold insane amounts of storage now. While burning a typical linux distro DVD, I may have found a glitch…

Screenshot - 11282012 - 06:30:54 PM

My DVD burner can now burn 18.4 EB DVD’s.

 

Linux Amazingly Runs Great on Faulty Hardware

We recently switched over from Windows to Ubuntu on a lot of our computers (about 400 computers) for many reasons I won’t get into now. One thing I can say is that our ancient 8-10 year old computers run [b]so[/b] much better than they did with Windows. We would frequently run into hardware related issues where Windows would randomly blue screen.

The same computers with Linux on them run just fine. Have for quite some time now. We notice that computers with failing hardware seem to run fine with Linux… see some of the amazing pictures below on functioning Linux computers.

ASCII Printer Status
CUPS Print menu…

Corruption ifconfig
Ifconfig, at least we got our IP of the computer.

903_2012-12-07+12.38.44
That ASCII is supposed to be the computer name.

We have been amazed on the faulty hardware that Linux will just work with…

Disk Usage Analyzer is… wrong…

Upon investigating a lack of hard drive space on a server I brought up the disk usage analyzer and scanned the remote drive.

lol-infinite-space

If you pay close attention, you may realize that /proc is 128 TB (yes i know that isn’t supposed to be scanned). However the more interesting part is also that total disk usage was not more than 128TB, furthermore total filesystem capacity listed at the top is also not correct at only 3.7 TB with 2.6TB free…

None of these numbers add up in any way…