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User: Predius

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  1. Re:What bufferbloat is on Got (Buffer) Bloat? · · Score: 3, Informative

    I think what you were seeing was more due to ATM overhead than the DSLAM trying to be cute with throttling. Because ADSL encapsulates everything in ATM even small IP / Ethernet frames get broken up into lots of ATM cells which can add upwards of 20% overhead. So an ADSL line trained at 8Mb/s will never provide 8Mb/s of usable throughput to the end user. Some ISPs actually advertise targeted throughput instead of train rate and set the train rate a certain percentage above the target throughput to compensate. Others just advertise train rates and have disclaimers in the fine print.

    I've had my hands inside most Gen 1, 1.5 and 2nd Gen DSLAMs and never seen any with automatic throttling like you described.

    (Gen 1 being units that just function at the ATM layer requiring an external system to bridge to Ethernet or IP. Gen 1.5's being upgraded Gen 1s with crude bridging, and Gen 2 being units that were designed to terminate connections directly from the ground up.)

  2. Re:Newflash! TV is fiction! on New Cars Vulnerable To Wireless Theft · · Score: 0

    Ah, no shit. But the concept is there, ya know? Do you expect ANY modern movie or TV show to nail the tech, or just work with the concept?

  3. Already on TV on New Cars Vulnerable To Wireless Theft · · Score: 0

    It's already been shown on TV, an NCIS episode has one guy using an iPhone app plus the VIN of an OnStar equipped car to unlock the car.

  4. Re:Nvidia cpu on Next Generation of Windows To Run On ARM Chip · · Score: 0

    I had the last Win 2k beta for Alpha, ran quite well on my 533mhz 21164, could even run some games via FX32!.

  5. Re:Where did this come from on 4chan Declares War On Snow · · Score: 4, Funny

    “Hacktivism”. Never heard the word before today and now it’s on every second post.

    I really hope it doesn’t catch on. I cringe every time I hear it.

    Without Hacktivism we'd never get to experience the joy of Hacktivo. Thats right, now you'll never miss another poorly coordinated DDoS because you're too busy actually accomplishing things. Just set the Hacktivo to record your favorite troublemakers and play back the lulz when YOU'RE ready to watch, on your schedule.

  6. Re:This isn't activism on Operation Payback and Hactivism 101 · · Score: 1

    Oh no, they were directly targeting www.paypal.com for awhile but later shifted gears as their collective strength was way down compared to when they were hitting Mastercard and they weren't having any real impact hitting www.

  7. Re:No official attack orders yet on WikiLeaks Defenders Threaten Amazon · · Score: 1

    It'll always look down to that tool, it doesn't respond on port 80, never has.

  8. No official attack orders yet on WikiLeaks Defenders Threaten Amazon · · Score: 3, Informative

    11:50EST and the target change off api.paypal.com hasn't taken place. There is serious internal strife as to weather or not to attack Amazon at all given that they so far haven't been able to reliably take out paypal.

  9. Re:Freedom of speech... on Worker Rights Extend To Facebook, Says NLRB · · Score: 2

    Depends on the state. Maine for example is an at will employment state. An employer can just decide "You're done" and you no longer have a job. There is no requirement for just cause. If you can prove it was due to something inappropriate you can bring a case, but the burden of proof is on the employee at that point.

  10. Re:why not both? on Looking To Better Engines Instead of Electric Vehicles · · Score: 1

    It's a two stroke boxer motor with a second set of outboard pistons running opposite to the primary units.

    The only real big changes worth noting over existing auto engines - it's a two stroke, and they have it running off a turbo decently.

    If you were to make a modern DFI two stroke with their turbo you would see the same compactness and emissions and even FEWER moving parts. The double opposed setup is just flash to distract you from the fact that it's a two stroke.

    Now, combine said theoretical DFI motor with Polimotor's research, aka a nearly all plastic motor and you'll see the power density go through the roof. THATs the engine I want.

  11. Cheapie ARM box on Apple vs. Google TVs · · Score: 1

    I'm just waiting to hear that someone's cracked the bootloader on the Apple TV so I can toss *nix distros on it. Cheapie lil ARM sandbox.

  12. Re:I'm all for it on Intel Wants To Charge $50 To Unlock Your CPU's Full Capabilities · · Score: 1

    And yet, Apple is the only one doing that I've come across... weird.

  13. Re:Goodbye India on India Now Wants Access To Google and Skype · · Score: 5, Funny

    You wanted to be the greatest source of ICT Professionals in the world.

    You started low - call centres - but hoped high.

    Now you just shot yourself in the foot with a rocket launcher.

    As long as they got a good bounce they'll reach the Quad Damage and be rocking despite the minor health loss up front.

  14. Re:ok... on India Now Wants Access To Google and Skype · · Score: 2, Insightful

    Only way the government is getting access to my VPNs in the US is with a court order and warrants, and even then they're only getting exactly what is spelled out to the letter in the warrant and nothing more. Any vague sweeping requests will be punted back up stream.

  15. Re:This assumes... on Toyota Sudden Acceleration Is Driver Error · · Score: 1

    I'll see what I can figure out. I know just turning the key off doesn't cut it as already noted. I *think* if I unplug the 12v battery that'll do the trick. If that battery isn't present or doesn't have sufficient charge I believe that's what operates the ECU as you can't fire up the car till that situation is fixed.

  16. Re:This assumes... on Toyota Sudden Acceleration Is Driver Error · · Score: 1

    So, just wandered out and looked. I have a brake master with no vacuum booster, and a secondary chamber (I'm guessing it's the "pedal feedback generator", a slave with a servo?) and a crap ton of wiring. This has dual feeds to the brake fluid reservoir? Three lines from this assembly go to the big ABS/Control box. It has it's own feed from the reservoir and it's own bleed point, implying there are separated hydraulic loops in play. My manual in it's description of the brakes says that control box does the actual brake application based on pedal input and what the ECU requests. The PDF you posted also shows the ABS block in between the pedal and the brakes, it does not say there is a direct hydraulic link between the master my pedal operates and the loop the brakes are on. My manual (also visible in some Prius manual excerpts online) also notes that in an emergency to not shut the car off as the brakes may not operate. If there is a direct link/single hydraulic loop I should be able to apply force to the system even if 'off'.

    (On another note, I have tried shutting the car 'off' with the key while in motion, you loose the ability to accelerate or do regenerative braking but the ECU/etc stay active, throwing warnings to come to a complete stop and shift to P before powering down completely.)

  17. Re:This assumes... on Toyota Sudden Acceleration Is Driver Error · · Score: 1

    That doesn't mesh with what's in my owners manual for my Highlander. I'm due for an oil change anyways, I'll ping the shop to see what they say.

  18. Re:This assumes... on Toyota Sudden Acceleration Is Driver Error · · Score: 1

    F=MA and it works in both directions, total energy to get up to speed shouldn't be massively more than the energy recouped from dropping from said speed. The variation will come from driveline friction and air resistance working against you on acceleration and helping on deceleration. Recoup what you can from braking to account for acceleration, then use a better driveline (Toyota's planetary gear setup is about the best system on the road right now, the dual stage setup in the new Lexus models is even more efficient at highway speeds than my model) to keep consumption down during steady state operation and you get tangible gains over a traditional vehicle of matching weight and power output.

  19. Re:This assumes... on Toyota Sudden Acceleration Is Driver Error · · Score: 1

    I've driving the non hybrid Highlander from the same year, it's good for 23 to 25mpg typically, my hybrid HyHi gets 30mpg. Using the included instrumentation you can see the amount of power regenerative braking generates, upwards of 50kw for a hard stop, it's not insignificant.

  20. Re:This assumes... on Toyota Sudden Acceleration Is Driver Error · · Score: 1

    I get 30mpg out of my 06 Highlander... I'd say I gained a touch more than 1/10 mpg out of the setup.

  21. Re:This assumes... on Toyota Sudden Acceleration Is Driver Error · · Score: 1

    If you manage to completely flatten the traction battery then yeah, you've got no brakes. The ECU will only draw the battery down to 40% charge under normal driving, leaving a pretty big reserve for key off braking.

  22. Re:This assumes... on Toyota Sudden Acceleration Is Driver Error · · Score: 1

    Toyota hybrids - Full brake by wire, no mechanical connection between the pedal and the brake system.

  23. Re:This assumes... on Toyota Sudden Acceleration Is Driver Error · · Score: 1

    Yes, on Toyota Hybrids there is no mechanical connection between the brake pedal and the brakes. The brake pedal works an ECU controlled simulated brake piston to provide feedback through the pedal to the driver while using either regeneration, engine braking or the hydraulic brake system, or any combination of the above as needed to slow the car at the rate requested by the brake pedal. In the event of a fault or ABS/Traction Control/Stability Control event the system cuts over to just the hydraulic brakes as a safety, drivers note this as a momentary loss of brake when slowing and hitting a big bump/etc as the system cuts over.

  24. Re:He Won! on The South Carolina Primary and Voting Machine Fraud · · Score: 1

    Saying it doesn't make it true.

  25. Re:Move on...nothing to see here... on Cryptome in Hot Water Again · · Score: 4, Informative

    Local logs on their machines? MSN may not log at the main server, but many clients certainly log locally.