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NUMA, Linus and the Ancient Conundrum

Posted 03-27-2015 at 07:06 PM by dijetlo (digital dijetlo)
Updated 03-28-2015 at 07:01 PM by dijetlo

Non Uniform Memory Architecture is kind of a dry subject for most. Where a bit of code or data sits in processor cache is of little importance to the average user, unless you become interested in things like virtualization (which seeks to maximize the utilization of that cache and slams face first into the issue ) or you're interested in performance testing, in which case squeezing every extra productive cycle out of the hardware becomes a pressing concern. I happen to be interested in both, so...
Senior Member
Views 960 Comments 6 dijetlo is offline

Found someone, you have, I would say, hmmm?

Posted 03-26-2015 at 01:43 PM by rocket357 (Musings on technology, philosophy, and life in the corporate world)

I was looking for a manager to handle a particular issue earlier, and I reached out to him on internal chat to get assistance. He wasn't available. In frustration, I mumbled "That manager is our only hope."

Across from my cubicle I heard someone pipe back in a distinctly Yoda-like voice "No. There is another..." and continued with instructions on locating the hunt group for that team, all while maintaining the Yoda voice.

I love this place.
Posted in Uncategorized
Views 764 Comments 5 rocket357 is offline

SysAdmin "Lack-of-Judgement" Day

Posted 03-25-2015 at 12:14 PM by rocket357 (Musings on technology, philosophy, and life in the corporate world)
Updated 03-25-2015 at 12:19 PM by rocket357

I have a beaglebone black. It was running OpenBSD 5.5. I felt the urge to upgrade last night, so I set off on a massive fustercluck of cursing, crying, and gnashing of teeth (whatever that means). Oh, and the curse of U-boot bites. Hard.

First, you aren't **EVER** supposed to skip versions when you upgrade OpenBSD. If you have an OpenBSD 5.5 machine and you want to upgrade to OpenBSD-5.7, you need to upgrade to 5.6 first, then upgrade again to 5.7 (or backup everything, perform...
Posted in Uncategorized
Views 674 Comments 3 rocket357 is offline

Red Hat 5.7

Posted 03-25-2015 at 05:35 AM by jheengut

Last week I installed the Red Hat Enterprise Linux distribution for the first time and unlike Fedora it felt smoother than a breeze.

The installation GUI is polished as an Enterprise grade toolkit. The general installation procedures were trivial but when a step regarding the Red Hat Subscription Management this needed to be skipped.

There was a problem in the partition table of the windows laptop and the vmware provided had a missing lua script, so virtualbox was chosen...
Posted in Unix, Linux
Views 818 Comments 4 jheengut is offline

ARM experiments awaiting

Posted 03-24-2015 at 03:40 PM by onebuck


I have purchased a ODROID-C1 ARM SoC to experiment within my LAB. What I have purchased to date;
HDMI Cable (Micro, Type D) 
5V/2A Power Supply  
16GB MicroSD UHS-1 C1 Linux (Pink Dot)
Chroma C1 Servo Board 
Heat Sink 
C1 Tinkering Kit
C1 3.2 inch Touchscreen Display Shield
Nice little board with loads of peripheral devices available to expand. I have several Raspberry Pi boards but the C1 is a better ARM device with more cores...
Posted in Uncategorized
Views 677 Comments 1 onebuck is offline


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