Far out.
SOME of you guys might like this...
I think it is downright amazing. So I bought one. The quad core.
32 more and I'll have a supercomputer.One to control 32 devices for 128 cores.
Only about 3 to 5 Watts consumption each. Amazing.
Looks like fun. I wish they had more photos of the box and preferably a manual. I only see one usb connector. Say what you want about Beagle and Panda, but at least they have manuals.
The serial ports on these sbc are actually more useful than you would think. Sometimes there are usb issues and the serial port is all you have.
The other problem I see here is depending on what you are doing, you may need a usb hub. USB hubs seem to have high failure rates, so it is better to have more usb ports on the box itself. A hub shouldn't be a problem, but reading newegg user comments, they are.
On Sun, 17 Nov 2013 18:09:38 -0800, miso Gave us:
You must not have spent very long there (on the site)
Look on youtube if you want to find units out of the shell.
Here is a video and a whole page of specs.
Quad core what?
i.MX6, quad core A9 I think.
-- John Devereux
Quad core from Freescale.. Android/Linux How fast is this thing? How many MIPS?
I'd buy a UDOO Quad.
On Mon, 18 Nov 2013 06:11:57 -0800, sms Gave us:
Analog audio.
Other than that and the consumption numbers, it is alright.
Only half the RAM, and what does it run at?
Your one was packaged too.
-- John Devereux
I have been tinkering with the Beagle Bone. Something I don't understand is how a supposedly efficient (in instructions/clock sense) CPU can perform so poorly. When I ssh into it the first time, it can take up to 30 seconds to generate the ssh keys. I have no idea what the bogomips figure actually describes, but it is about 10 - 15% of a Pentium CPU at the same clock speed. Fortunately, for this application I didn't NEED much performance, but it sure seems slow for a "1 GHz" processor.
Jon
Have you accounted for potential wait states? Caching (or lack thereof)?
Are you sure it isn't busy (waiting!) gathering entropy? (something comical in that phrase)
That's a little weird. Most embedded Linux systems I have used generate SSH keys at boot time. It does sometimes take a few seconds, but I guess they figure it's better to do it then, when the machine isn't all the way up anyway, rather than to take the CPU hit at some unknown time later when somebody logs in.
Sometimes SSH takes a while because the two ends are trying to agree on an authentication or encryption scheme. If you are ssh-ing in from another Linux box, use the -v flag to ssh to see all the negotiations. Using more -v gives you more verbosity, up to three. (For example, ssh -v -v user@beaglebone ). If there is something that seems to cause a long pause, you might be able to configure that out of the SSH daemon on the Beaglebone.
Like Don Y said, it may also be waiting for randomness. Perhaps try booting it up and letting it sit for 10 to 30 minutes and then ssh into it; see if that's faster. If that helps, and if you have storage you don't mind writing to on every shutdown, it's possible to "save" randomness across reboots; look at the random(4) man page on a desktop Linux box for how to set this up.
Matt Roberds
It has digital audio over HDMI.
It's really for embedded stuff more than it is for something like a server. It's essentially a high-performance Raspberry Pi melded to an Arduino for I/O. Plus it has four or five USB ports so you don't need to futz with a hub.
That is the DNS lookup time-out.
Forget about the Beagle bone! I've been playing with an iMX6 Quad core board for about a week and its pretty neat.
-- Failure does not prove something is impossible, failure simply indicates you are not using the right tools... nico@nctdevpuntnl (punt=.) --------------------------------------------------------------
On 18 Nov 2013 15:45:32 GMT, John Doe Gave us:
Not the brightest response.
Cursory glance, and an uninformed peanut gallery wanna be crack.
Looks like the 'doe' of your skull cavity still needs to rise.
On Mon, 18 Nov 2013 16:19:38 +0000, John Devereux Gave us:
His is nicer, IF it is as fast or faster or the same cpu, etc. It does have the I/O ports, and that makes it a better lab/bench 'tool'.
His would end up being about $200 after the VAT and export fees.
Mine was less than $150 delivered. His looks a lot more 'serviceable' too.
I wonder if I sank one in an Insulating fluid if I could OC it to a few GHz.
I could see a helix shaped cluster sitting in a clear plastic cylinder with bubbles rising up, looking like it is in water.
Electrical folks would go apeshit trying to figure out how it is working, and others talking about how pure water is not conductive, etc.
It would be pretty funny.
Slow SSH connection response is one symptom of a messed up domain resolver. 30 seconds is about right.
-- For a good time: install ntp --- news://freenews.netfront.net/ - complaints: news@netfront.net ---
Would it be faster than your Roku?
have.
Kind of interesting, just about a year ago i bought a laptop that could beat an 1990 IBM 3090-600J "baby supercomputer", now anyone can get close with what seems to be large key chain fob dimensions (thus headless) at nearly the same level. So much for "mainframes". MPP is dying, cloud or much more accurately, massively distributed computing which achieves better fault tolerance and greater salability, i'll bet google's cloud includes many millions of multi-core processors and high exabytes to low petabytes of secondary (disk) storage. Just the same it is the massive distribution and the serious fault tolerance and recovery that makes the difference. Not to mention a better programmers interface.
?-)
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