Linked by James Ingraham on Thu 12th Apr 2012 22:36 UTC
I don't actually have a reason for trying to build a Linux kernel with the CONFIG_PREEMPT_RT patch set. There's no way I can even measure the impact of it. Still, I felt like having a "real-time" Linux box, and set out to make one. Little did I know how difficult it would be to even get started.
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Member since:2006-05-20
Immediately visible that Thom...
I have to jump in here and point out that Thom didn't write the article, so the blame falls on me.
So I was hoping to see the RT kernel experience but this article was abiout custom kernel compilation. Dissapointed!
Sorry. Obviously, that was the long-term goal. I am currently torn between continuing towards that goal and just keeping my mouth shut. On the one hand, I'd like to redeem myself. On the other, I think that may not be possible.
-James
Member since:2008-10-09
Sorry about that very important missed detail that author wasn't Thom this time 
Sorry again!
Still I would urge you to continue the guest of RT kernels and perhaps recommend to try out a little hands-on linux where you have to make things working yourself. This way you learn what is important and what is not, You learn linux in general, not just that particular distro. After getting a bit customed with tinkering and all the command-line stuff suggest to start trying out to compile your custom kernels from scratch - beginning from clean config that is. After couple trial and errors you learn what parts of the kernel configs are important to you and which are not. For example, if you leave V4L part out of your kernel then it probably still continues to boot, but if you choose IDE controller on SATA system then you will be greeted with Kernel panic on next boot. If you haven't configured the boot loader with previous working kernel available, then that means reinstall Or if you are wizard enough, boot with some live CD, mount your partition, copy the working kernel with modules over there, configure boot loader and hope for the best. Linux is fun, if you have the time. Also you will learn A LOT.
Good luck and will be waiting for your RT kernel article still with all the comparisons, where it is better and where it is worse.
News
Linked by Thom Holwerda on 05/23/13 17:52 UTC
"The wave of departures is a sign of internal struggle, but amidst all the bad news, there is a glimmer of hope. According to an anonymous HTC executive cited by WSJ, the crucial HTC One is selling 'pretty good so far'. The executive revealed that HTC sold about five million One units since launch, a performance that is deemed encouraging. However, sales have been limited by the persisting supply issues that still plague the production of the HTC One." Finally some good news for HTC. Five million units amidst supply constraints is very impressive.
Linked by Thom Holwerda on 05/22/13 22:23 UTC
"Sony gave the PS4 50% more raw shader performance, plain and simple (768 SPs @ 800MHz vs. 1152 SPs & 800MHz). Unlike last generation, you don't need to be some sort of Jedi to extract the PS4's potential here. The Xbox One and PS4 architectures are quite similar, Sony just has more hardware under the hood. Weâll have to wait and see how this hardware delta gets exposed in games over time, but the gap is definitely there. The funny thing about game consoles is that itâs usually the lowest common denominator that determines the bulk of the experience across all platforms. On the plus side, the Xbox One should enjoy better power/thermal characteristics compared to the PlayStation 4. Even compared to the Xbox 360 we should see improvement in many use cases thanks to modern power management techniques." AnandTech does its usual in-depth thing.
Linked by Thom Holwerda on 05/22/13 13:38 UTC
"The Verge has learned that HTC's Chief Product Officer, Kouji Kodera, left the company last week. Kodera was responsible for HTC's overall product strategy, which makes the departure especially notable on the heels of the global launch of the make-or-break One. It's not just Kodera. In the past three-odd months, HTC has lost a number of employees in rapid succession." I really hope HTC pulls it together.
Linked by Thom Holwerda on 05/22/13 13:30 UTC, submitted by JRepin
"It is with huge pleasure that the Debian GNU/Hurd team announces the release of Debian GNU/Hurd 2013. This is a snapshot of Debian 'sid' at the time of the Debian 'wheezy' release (May 2013), so it is mostly based on the same sources. It is not an official Debian release, but it is an official Debian GNU/Hurd port release." Important note: 75% of Debian packages are supported bu Debian GNU/Hurd. Impressive.
Linked by Thom Holwerda on 05/21/13 22:06 UTC
"The first killer app was VisiCalc. This early spreadsheet turned the Apple II from a hobbyist toy to a business computer. VisiCalc came with room for improvement, though. In addition, a new architecture and operating system, the Intel-based IBM PC and MS-DOS, also needed a spreadsheet to be taken seriously. That spreadsheet, released in early 1983, would be Lotus 1-2-3, and it would change the world. It became the PC's killer app, and the world would never be the same. On May 14, IBM quietly announced the end of the road for 1-2-3, along with Lotus Organizer and the Lotus SmartSuite office suite. Lotus 1-2-3's day is done." Impressive 30 year run.
Linked by Thom Holwerda on 05/21/13 21:45 UTC
"There's a disconnect between how Apple CEO Tim Cook sees his company's tax strategies and how some members of the US Senate view it. That became clearer than ever today after Cook and two other Apple executives testified before Congress, explaining why they're holding most of their international income in Irish subsidiaries like Apple Operations International, which declare no tax residency anywhere in the world. AOI hasn't filed a tax return anywhere in the world for the last five years, yet it earned $30 billion in income from 2009 to 2012, according to a Senate report released yesterday." Just because something is legal, doesn't mean it's just. Apple, Google, Microsoft, and many more - these companies might not be breaking any laws, but it's obvious to anyone that what they are doing is scummy.
Linked by Thom Holwerda on 05/21/13 15:53 UTC
The new WebKit Opera for Android has been released. "Opera 14 for Android is built on top of Chromium 26, with a total overhaul of the UI in native code, making it fit well with the latest Android design guidelines. Go get the build from Google Play or point your browser to m.opera.com, and give it a spin!"
Linked by Thom Holwerda on 05/20/13 22:43 UTC
The Verge pointed me to a blog post by Leap Motion - which reveals how their Kinect-like motion control works with Windows 8. "From the second you plug in your Leap Motion Controller, you'll be able to browse the web and interact with your computer just by moving your hands and fingers in the air. With Leap Motion technology and Windows, you can do everything that's possible with multi-touch inputs - without actually touching anything. This also means that existing applications in Windows 7 and 8 will respond to your natural hand and finger movements. Soon, we'll show you how Leap Motion will work with Mac OS X." Quite cool.
Linked by Thom Holwerda on 05/20/13 21:50 UTC
PocketNow interviews Marc Dillon, and there's an interesting note about why Jolla is keeping the display properties under wraps: "We're leaving some of those details out because we do understand that there are a lot of really big players in the market and they tend to take certain components in the market and dominate them. We created the ability to actually be able to run Sailfish on multiple hardware displays and be able to swap components, so this is part of the demand and supply planning phase. We are committed to this industrial design which is a 4.5-inch display, an 8 megapixel camera on the back and a front-facing camera at the front, and the exact specs of the display we'll provide when we're close to delivery." Something you rarely hear anything about.
Linked by Thom Holwerda on 05/19/13 23:15 UTC
"This is my NeXTstation Turbo Color booting the Mac System 7.1 Operating System using a hardware add-on called 'Daydream'. The Daydream has a Mac ROM and a few custom ICs in it and hooked up to the NeXTs DSP port. Turns your NeXT into a full fledged 68k powered Mac." So cool.More News »
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Member since:
2008-10-09
Immediately visible that Thom haven't had any Slackware experience. This is pretty much essential thing for Slackware to compile a custom kernel (although the stock one works fine). Slackware installation book covers this with enough detail. Also it is fine to see kernel panic first couple of custom compiles due leaving out a critical component.
Ultimately you will not have that dependency hell in Slack. Hate this when package manager tries to baby sit me. If I miss something I see the "library cannot be loaded... " message and that is enough to warn a missing piece I must install. Usually package managers demand unneccessary dependencies which actually does not prevent usage of the program. That is the reason why I like Slackware's approach because dependencies are usually not justified and I can sort them out myself if needed.
So I was hoping to see the RT kernel experience but this article was abiout custom kernel compilation. Dissapointed!