Mercedes-Benz's myCOMMAND system demoed on video

With Chrysler pushing out an internet-connected package of its own, Mercedes-Benz is attempting to stay one step ahead with the intelligent, intuitive myCOMMAND system. Our pals at Autoblog were able to get a bit of hands-on time with the new setup at the LA Auto Show, and they were kind enough to host up a near-5 minute video showing off its most attractive features. They reiterated that what was being taped was simply a concept for now, but there's zero doubt that the automaker is looking to get this into production as soon as feasibly possible. Hit the read link for a look at the clip, but be sure and pull over first.


Intel Core i7 CPUs reappear on NewEgg

Remember those Core i7 processors that showed up -- ever so briefly -- on NewEgg a few days ago, only to promptly disappear, leaving us to ponder what we'd done wrong? Well, even though they're not slated to officially hit shelves until November 17th, we've heard from a slew of vigilant tipsters (hipsters?) that they're back. The prices are the same as we saw before, but you might want to check 'em out yourself right away, just in case they disappear again and you're forced to wait until tomorrow.

Source engadget

Pay Attention or Pay the price...


Honda introduces new walking assist machine, doubles as bionic wedgie maker

For a company most famous for its wheeled products, Honda certainly seems quite focused on things to help people get about on their own two feet, introducing another new prototype machine with just that in mind. Unlike the earlier Walking Assist Device, which is intended just to help patients re-learn how to walk, the new (and cunningly named) Walking Assist Device with Bodyweight Support System is for anyone who needs a lift -- even those who are perfectly healthy. To use it you basically straddle a bicycle seat with robotic legs, tie it to your shoes, and then (gingerly) go about your business, uncomfortably demonstrated in a video after the break. The legs support your body when you crouch and give little tugs on your feet when you walk, making bipedal mobility less of a strain. A Honda engineer said "It reduces stress, and you should feel less tired." Less tired, yes, and less exercised too. We envision a future where spindly robotic legs shudder under the weight of our grossly obese frames -- but maybe we've seen Wall-E too many times.


Nehalem: The Unwritten Chapters

Despite being extremely well prepared in having Nehalem, motherboards, coolers and memory well before launch, the run up to the NDA lift of Intel's Core i7 processors was stressful. There was so much to test: multi-GPU compatibility with X58, memory controller performance, general application performance, overclocking, Hyper Threading, etc...

We're all still hard at work on sorting out the details, Gary is working on a X58 motherboard roundup and has been testing 12GB memory configurations for the past several days (as well as working with board vendors to improve performance/compatibility with 12GB but I'll let you tell him about that), Derek is working on multi-GPU performance and Kris has been working on an overclocking guide. What have I been up to? Well, I've been trying to answer a few lingering questions about Nehalem.

What I've got today are the first results of the questions I've been asking, I've spent the past week looking at power efficiency, memory latency and talking to some of Intel's finest on the phone about Nehalem. And I'm back to report, gather 'round for Nehalem: The Unwritten Chapters.

The Uncore
I got a little more detail from Intel on the un-core clock. Just like Phenom, Intel’s Core i7 is divided into an area called the “core” and an area called the “uncore”. The core contains the individual processor cores and their L1/L2 caches, while the uncore houses the memory controller and the shared L3 cache. In our review I mentioned that the uncore runs at 2.66GHz, which is true, but only for the Core i7-965. The Core i7-940 and 920 both run the uncore at 2.13GHz.

The uncore clock is defined by Intel just like the core clock is - Intel sets it based on yield and performance targets. As I mentioned in the launch review, the uncore clock runs at a simple multiplier of the bclk (133MHz): 20x for the i7-965 and 16x for the i7-940/920. The uncore also runs at its own voltage (1.20V) and that voltage doesn't scale up/down.

On Intel’s own X58 board the uncore clock is configured on the memory settings page and is simply called UCLK:

I took the i7-965, ran it at 2.66GHz to simulate an i7-920, and varied the uncore clock to measure the impact in L3 cache and memory latency:

Core Clock Uncore Clock L3 Latency Main Memory Latency x264 HD Benchmark Cinebench XCPU Benchmark
2.66GHz 2.93GHz 34 cycles 143 cycles 72.8 fps 13456
2.66GHz 2.66GHz 36 cycles 148 cycles 73.0 fps 13429
2.66GHz 2.13GHz 41 cycles 159 cycles 72.7 fps 13182

At a 2.66GHz uncore clock things seem to hit a sweet spot, although the translation to real-world performance just isn't there. Perhaps in a very memory intensive test we'd see something more pronounced, but even the x264 HD encoding test showed no performance difference between the three uncore clock speeds.

Surprisingly enough, I couldn’t get the i7-965’s uncore to hit 3.2GHz - Vista would bluescreen before I could even get to the desktop. As the table above shows, increases in uncore frequency aren't nearly as useful as increasing the CPU frequency. Intel recognized this performance relationship as well and chose to optimize the uncore for power consumption, not clock speed, which means that the uncore won't be able to clock as high as the core itself. You could always increase the voltage a lot to try and boost uncore speed but right now it's not looking like the tradeoff would be worth it as you'd increase power quite a bit.


Lightning Review: Voting Machines (Verdict Pending)

The Gadget: Touchscreen, punch card and lever voting machines

The Price: Free with registration

The Verdict: Unclear.

There have been lots of criticisms of the betas and early releases of the reliability of the touchscreen models, but all that matters is them working on the release day. And today is finally the release day for these super-hot gadgets after an agonizingly-long two-year marketing push, so expect lines as long as the iPhone lines in certain markets. Plan ahead!

We need more hands-on with these, but luckily, they're free for all American citizens today, so go out and use them and then let us know how it went. Take pictures or video if you're up for it. We want a really comprehensive review here, so make sure you use them. They're the most important gadgets you can play with, after all.


Windows 7 installed on a new MacBook Pro, sparks fly

It's a next-generation operating system and mirror all in one!

Nuh - hay - lem

At least that's how Intel PR pronounces it.

I've been racking my brain for the past month on how best to review this thing, what angle to take, it's tough. You see, with Conroe the approach was simple: the Pentium 4 was terrible, AMD proudly wore its crown and Intel came in and turned everyone's world upside down. With Nehalem, the world is fine, it doesn't need fixing. AMD's pricing is quite competitive, Intel's performance is solid, power consumption isn't getting out of control...things are nice.

But we've got that pesky tick-tock cadence and things have to change for the sake of change (or more accurately, technological advancement, I swear I'm not getting cynical in my old age):

Could Nehalem ever be good enough? It's the first tock after Conroe, that's like going on stage after the late Richard Pryor, it's not an enviable position to be in. Inevitably Nehalem won't have the same impact that Conroe did, but what could Intel possibly bring to the table that it hasn't already?

Let's go ahead and get started, this is going to be interesting...
Nehalem's Architecture - A Recap

I spent 15 pages and thousands of words explaining Intel's Nehalem architecture in detail already, but what I'm going to try and do now is summarize that in a page. If you want greater detail please consult the original article, but here are the cliff's notes.


Nehalem, as I've mentioned countless times before, is a "tock" processor in Intel's tick-tock cadence. That means it's a new microarchitecture but based on an existing manufacturing process, in this case 45nm.

A quad-core Nehalem is made up of 731M transistors, down from 820M in Yorkfield, the current quad-core Core 2s based on the Penryn microarchitecture. The die size has gone up however, from 214 mm^2 to 263 mm^2. That's fewer transistors but less densely packed ones, part of this is due to a reduction in cache size and part of it is due to a fundamental rearchitecting of the microprocessor.

Nehalem is Intel's first "native" quad-core design, meaning that all four cores are a part of one large, monolithic die. Each core has its own L1 and L2 caches, and all four sit behind a large 8MB L3 cache. The L1 cache remains unchanged from Penryn (the current 45nm Core 2 architecture), although it is slower at 4 cycles vs. 3. The L2 cache gets a little faster but also gets a lot smaller at 256KB per core, whereas the lowest end Penryns split 3MB of L2 among two cores. The L3 cache is a new addition and serves as a common pool that all four cores can access, which will really help in cache intensive multithreaded applications (such as those you'd encounter in a server). Nehalem also gets a three-channel, on-die DDR3 memory controller, if you haven't heard by now.

At the core level, everything gets deeper in Nehalem. The CPU is just as wide as before and the pipeline stages haven't changed, but the reservation station, load and store buffers and OoO scheduling window all got bigger. Peak execution power hasn't gone up, but Nehalem should be much more efficient at using its resources than any Core microarchitecture before it.

Once again to address the server space Nehalem increases the size of its TLBs and adds a new 2nd level unified TLB. Branch prediction is also improved, but primarily for database applications.

Hyper Threading is back in its typical 2-way fashion, so a single quad-core Nehalem can work on 8 threads at once. Here we have yet another example of Nehalem making more efficient use of the execution resources rather than simply throwing more transistors at the problem. With Penryn Intel hit nearly 1 billion transistors for a desktop quad-core chip, clearly Nehalem was an attempt to both address the server market and make more efficient use of those transistors before the next big jump and crossing the billion transistor mark.

CETURK Java Teknolojileri Etkinliği (8 Kasım Cumartesi)

Bugüne kadar gerçekleştirdiği bir çok etkinlikle üyelerine ve bilişim sektörünün gelişmesine katkıda bulunan CETURK yine büyük bir organizasyon ile karşımızda.

CETURK, 8 Kasım Cumartesi günü "CETURK Java Teknolojileri Etkinliği" inde Java dünyasını bir araya getiriyor. Java dünyasındaki en son teknolojilerin ve gelişmelerin anlatılacağı etkinlikte Vardar Yazılım ve Sibnet'ten profesyoneller toplam 5 sunum yapacaklar:
JSF ve Ajax
Java ile Web Servisleri Geliştirme
Java'da SOA, SDO ve SCA
JBoss Seam ile Uygulama Geliştirme ve Yenilikler
EJB 3.0 ve JPA ile Uygulama Geliştirme ve Yenilikler

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