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Comment The real scam... (Score 1) 832

...is that most users of low-end CPUs won't notice the difference going from 2 threads to 4, or turning on extra cache. They'll just notice their Windows 7 system getting slow, as Windows systems are wont to do, and then pay $50 only to find out that it's still just as slow, because it did nothing for their memory-starved, I/O-bound, single-threaded workload.

Comment Re:fastest first post ever? (Score 1) 292

It would get you nowhere near that. A substantial fraction of any mainframe architecture's instruction set is emulated in software. The actual MIPS ratings are way below the MHz ratings, whereas on most superscalar architectures, MIPS exceeds MHz.

Once you've paid that penalty as well as the qemu penalty, you're getting down to somewhere in the Doom/Quake I range, with no hardware acceleration.

Comment Only 14.4 Mbps... (Score 2, Informative) 132

While T-Mobile's towers may be capable of 21 Mbps HSPA+, the G2 itself can only do 14.4 Mbps, according to the fine print on T-Mobile's teaser site. Of course, you'll get nowhere near this in real life, but if you have a 7.2 Mbps HSPA device, and you're expecting it to be 3x as fast as whatever you get in real life on that, you'll be disappointed to only get 2x that, at best.

http://g2.t-mobile.com/

Submission + - Defect in Samsung Moment prevents 911 calls (icrontic.com) 3

icebreeze writes: I would like to inform you of a longstanding issue with Sprint and its phone known as the Samsung Moment. In short, if you use WiFi and then turn it off when done (leaving it on drains your battery very quickly, so turning it off is necessary), within a few minutes the EvDo and 1x/RTT data modems will lock up (for lack of a better term) and render your phone unable to send or receive any data at all. It has been shown that virtually every Samsung Moment sold is vulnerable to the data lockup.
This defect is serious. The data lock prevents 911 service availability in emergencies. Users will not know the phone is locked out until a call is attempted thus hindering emergency contact. The only way to recover from the lockup is remove the battery, resulting in an unnecessary delay in what could be a life threatening situation.

As shown by feedback on a FaceBook(1) group dedicated to the lockup and Sprints own forums(2), Samsung/Sprint mass sold a defective phone to its customers and has neglected to fix the phone, recall the devices, issue functional replacements, or refunds.:

      1. http://www.facebook.com/home.php?#!/group.php?gid=121045624613806
      2. http://community.sprint.com/baw/community/buzzaboutwireless/phones-and-devices/android_phones/moment

According to the user Mkeng5 on Sprint's forum, Samsung is also violating their own Standard Warranty policy by not producing a valid fix for the phone:

http://community.sprint.com/baw/message/206716#206716

Please help make this serious issue known so Sprint/Samsung will be motivated to provide a valid solution.

Comment Re:What brand? (Score 1) 190

There's a first time for everything. When I was at Red Hat, a customer (maybe you?) experienced a SAN-wide outage due to an error, caused by a rare hardware failure mode, that the vendor's engineers told me in private they had never seen before. It was one of the more reputable SAN vendors, and they worked with us on a kernel patch to recover from that error more intelligently. There's now a patch in the Linux kernel to gracefully recover from an error that has only been seen once outside of a hardware lab.

I've also talked to plenty of engineers and support people who had simply never heard of a particular problem before, because their companies lacked sufficiently well-organized support and bug tracking systems, and couldn't hold on to their experienced employees long enough to have someone around who knew what was going on the next time the problem came up.

In the world of enterprise computing, the law of large numbers is working against you. Some vendors understand this, and treat each novel failure as an opportunity to harden the product further. You usually pay a premium for this, but it's worth it. Others just swap the bad board and update their resumes. It sounds like NG went with the lowest bidder.

Comment Re:Awful. (Score 1) 190

Given that Blizzard monitors local weather in places where they have data centers, to be aware of potential power supply and cooling issues before the alarms go off, I'm going to take a shot in the dark and guess their SANs use redundant controllers.

http://www.crunchgear.com/2009/09/18/blizzard-reveals-some-technical-data-about-world-of-warcraft/

Comment FAT32 (Score -1, Redundant) 253

I'm not kidding. For a filesystem that's only going to hold a handful of very large data files, transported by sneakernet, there's not much benefit to journalling, directory structure optimizations, POSIX permissions, etc. You just want something that's marginally more structured than writing data directly to the raw block device, and FAT32 is the lowest common denominator.

Comment Flash on the iPhone! (Score 1) 701

In all seriousness, given that it's being presented at a TeX conference, I highly doubt it's something so fundamental as P vs. NP. Since we're all flailing wildly at possible answers, I'm going to put my money on an average-case polynomial solution to an NP-complete problem. These already exist, but the average case is very fragile and rarely survives reduction to another NP-complete problem. Perhaps he's found one for one of the more popular and useful NP-complete problems.

Who's running the pool?

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