* Posts by fnj

70 posts • joined 21 May 2010

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Jeep drivers can be HACKED to DEATH: All you need is the car's IP address

fnj
Alien

Re: why does the radio want to adjust the volume?

That's bullshit, and if one can't live a perfectly happy life without the sodding automatic volume control, one is brain dead. It's time for Darwin, but don't kill me in my car because you want to design for the helpless jellyfish.

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Toyota recalls 625,000 hybrids: Software bug kills engines dead with THERMAL OVERLOAD

fnj

Re: ada

I am old enough to remember before there were FETs. FETs brought absolutely BLINDING speed and incredibly low resistance in the on-state. What you have to be careful of, and you always did have to be careful of, is operating FETs in the region between full-on and full-off.

When they are full-on, power dissipation is limited by I times R, where R is thousandths of an ohm. When they are full-off, power dissipation is limited by the incredibly low leakage current. What you don't want is to have them "sort of" on but not "full on". You can cook the bejeezus out of them in an all-fired hurry.

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Mozilla's ‘Great or Dead’ philosophy may save bloated blimp Firefox

fnj
FAIL

Who once was my valued friend but is now dead to me

Firefox is so dead. Stick a fork in it. Here is another vote for Pale Moon. It is what Firefox once was and still should be, but never will be again.

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Wake up, sheeple! If you ask Siri about 9/11 it will rat you out to the police!

fnj

<blockquote>AND - I reckon it's pretty obvious about which way round it is as soon as you see it?

eg. 2015-01-02 is pretty clearly Jan 2nd eh?</blockquote>

All right, who's the lunatic who downvoted this post? 8601 is in fact the only unambiguous date format.

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HGST shimmy shimmy shingles its way to a 10TB spinning rust drive

fnj

Cannot imagine wanting under any circumstances

Hard drive technology advancement has crashed into a brick wall. Stuff like this is just not useful. The horrible warts are simply not worth the tiny increment in density.

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Oz battery bossmen: Fingers will be burned in the Tesla goldrush

fnj

Re: 7 or 10 kWh

What is air conditioning /sarc.

Looks like it will reduce the godawful heating bill to me.

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fnj

Re: AHI is the way to go

Sounds very very exciting. Unfortunately it seems too vaporish still. For example, it specifies 2 kWh per module, but there is no indication whatever of the power delivery rate in kW. The power delivery rate of the Tesla entry is PISS POOR.

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FCC leaning towards approving AT&T/DirecTV gobble – report

fnj

Question

FCC: who the fuck does this serve?

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Business or pleasure? Crucial MX200 and BX100 1TB SSDs

fnj

Re: Very interesting

80 GB per 12 hours is only 2 MB per second. On the face of it that wouldn't even begin to strain the slowest HD or SSD you could find, unless your data is EXTREMELY peaky/bursty.

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fnj

How about the part that matters?

I couldn't care less about the transfer speed. The slowest SSDs from yesteryear are more than fast enough - as long as they hold up in use (I'm looking at you, Samsung, the transfer speed collapsing to cripplingly slow after a while in use).

No, what matters is power-loss data protection. Both internal table structures protection, and cached write data protection. If it doesn't have it, it is UTTER CRAP and I wouldn't touch it. I see no information presented here that either level of protection is present.

Anandtech found that the M500, M550 and MX100 do not have the cached write data protection at all. What they have is a measure of protection against corruption of internal table structures - i.e., a half-assed level of protection; better than none but still FAIL.

I am worried that the BX100 and/or MX200 might not have even the half-assed protection - that they are no better than ticking time bombs.

http://www.anandtech.com/show/8528/micron-m600-128gb-256gb-1tb-ssd-review-nda-placeholder

http://www.anandtech.com/show/7947/micron-m500-dc-480gb-800gb-review

Note that the large expensive tantalum capacitors of the M500DC enterprise drive give real full protection. The wimpy teeny tiny ceramics on the M500 do not. And most other brands are not even THAT good.

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Google pulls plug on YouTube for older iPads, iPhones, smart TVs

fnj

> THIS is why all this connected, internet TV stuff is NOT the future.

Wrong conclusion. The correct conclusion is that THIS is why the future our corporate overlords are presiding over SUCKS.

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RADIOACTIVE WWII aircraft carrier FOUND OFF CALIFORNIA

fnj

Incorrect

Wrong. It wasn't "commissioned as a cruiser". It wasn't even launched as a cruiser. The closest you're going to get is that it was designed and construction begun as a cruiser but converted during construction, and at launching was already a carrier.

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Torvalds' temptress comes of age: Xfce 4.12 hits the streets

fnj

Re: If it ain't broke...

If you want a title bar, you've still got it. The default is still to have a title bar. So this is an utterly pointless objection.

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Broadband routers: SOHOpeless and vendors don't care

fnj

Re: OpenWRT?

<blockquote>- 'router' or 'switch' - I forget, one routes packets by IP to the ONE PC it is for, the other just sends the packets to ALL connected PCs..</blockquote>

Incorrect. A switch replicates incoming packets to single SELECTED ports based on the addressed MAC vs the MAC of the attached device. A router redirects all incoming packets on the LAN which are addressed off the LAN subnet, to the WAN port (and vice versa). A NAT router (which basically everybody thinks of when you say router) adds rewriting the source IP/port-number pair of LAN packets which it redirects to the WAN, and reverses the process on responses from the WAN so they get to the right place.

You are thinking about a "hub", which simply replicates all packets coming in on any port, to all other ports.

To put it as simply as possible, a hub filters/rewrites nothing; a switch filters by destination MAC; a router filters by destination IP; and a NAT router filters by destination IP and rewrites source IP and port number.

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Paul Allen hunts down sunken Japanese WWII super-battleship

fnj

Re: And the thrid ship

Ahem, it is Shinano, not Shimano.

It is true that details were a closely guarded secret at the time, but with the passage of history all has become known in intricate detail.

See "Design and Construction of the Battleships Yamato and Musashi", by Kitaro Matumoto. Anyone who didn't buy this massive painstaking work when it came out in 1961 is not a serious historian. The main text is Japanese, but there is an English table of contents and appendix with copious tables and diagrams. From this we know such details as:

The exact dimensions of course[*]

details of 24 progressive designs leading to the final design

For secrecy the gun was officially termed Type 94 40cm, 45 caliber - actual bore was 46cm

Weights: gunnery, 11,802; armor, 23,500 tonns

The exact number of watertight compartments (1147)

The side armor being manufactured in 88.5 ton segments, 5.9x3.6m x410mm

The engine room floor area was 640 square metres

Superheated steam at 25 kg/mm^2 and 325 C from 12 boilers

[*] length overall, 263m; waterline, 253m; between perpendiculars, 244.0m

breadth, 38.9m

mean draft at full load, 10.86m

prismatic coefficient, 0.612

tactical turning diameter, 640m (heel 9 degrees)

period of roll 17.5 seconds

metacentric height at trial conditions, 2.88m

Mr. Matumoto defied an official order to destroy all documentation, saving voluminous notebooks.

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fnj

AA guns

Musashi did not have "36" 25 mm antiaircraft guns. That would have been an absurdity in 1944. By then she had 130 of them.

Unfortunately the 25 mm was a very poor weapon, especially compared to the excellent 40 mm Bofors on US ships. Musashi, like all Imperial Japanese Navy ships, was wholly incapable of mounting a credible AA defense.

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FCC says cities should be free to run decent ISPs. And Republicans can't stand it

fnj

[Not directed at anyone here]

As a USAian, may I say that the idea of rolling this back legislatively is STUPID DENIAL. Hello, all idiots with an R after their name: it DOESN'T MATTER what bills you pass to undo this, the President owns your ass! He will just veto (thank god). After 2016 it may be up for grabs again, but until then, JUST SHUT UP.

I am still in the elation phase over the FCC's action. Sure, it may turn into something bad, but you don't just abandon all attempts at governing because you're afraid your governing structure is going to be evil or incompetent.

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M0n0wall comes tumbling down as dev throws in the trowel

fnj

Re: arm

In what world is FreeBSD limited to "intel/amd"? In the world I inhabit, we have:

ARM 32-bit: ftp://ftp.freebsd.org/pub/FreeBSD/releases/arm/armv6/ISO-IMAGES/10.1/

PowerPC 32-bit: ftp://ftp.freebsd.org/pub/FreeBSD/releases/powerpc/powerpc/ISO-IMAGES/10.1/

PowerPC 64-bit: ftp://ftp.freebsd.org/pub/FreeBSD/releases/powerpc/powerpc64/ISO-IMAGES/10.1/

PC98 and SPARC admittedly seem to have been dropped.

Apologies for not making proper links, but TheReg won't let me play with html until I've mae a billion posts or something.

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VMware finds new post-paranoia RAM-saving tricks

fnj

Picture

Is that a picture of an S-100 memory card?

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Toshiba tosses out uber-slim THREE TERABYTE HDD

fnj

Unimpressed

600,000 hours is a pretty piss poor MTBF. HGST 3.5" 3TB Desktar NAS is 1,000,000, and 7K4000 Ultrastar is 2,000,000.

I'll pass.

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Micron stacks its 3D NAND high in 2015

fnj

What is wrong with them?

It's perfectly obvious that 3D NAND has the potential to allow MANY TIMES more density in the package, so why in the nine hells do they reject 3D SLC out of hand? The rationale for having to resort to MLC crap in the first place has just been exploded. THINK.

Is stupidity an absolute requirement for running a corporation?

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QEMU, FFMPEG guru unleashes JPEG-slaying graphics compressor

fnj
Happy

Love it

A stunning improvement. Never mind smaller but same quality - dig the massive improvement in quality for the same size.

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WD and HGST: We tried to merge our two drive makers, MOFCOM said NO, NO, NO

fnj
Stop

Please keep them separate forever

I'm just a lowly user. I don't want to see WD swallowing HGST because WD is a shitty company that produces shit and will turn HGST products into shit.

As it stands now, HGST and Toshiba are the only drives I would willingly touch. WD and Seagate are both garbage.

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Step by flashy step: Toshiba clambers up to next gen SSD

fnj

Interesting experiment

It's an interesting experiment. Toshiba is advertising VASTLY greater endurance than anybody else in the class. The question is, is it real, or is it just optimism - less conservative spec parameters.

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Yes, Obama has got some things wrong on the internet. But so has the GOP

fnj

Re: Common sense

<blockquote>So the same should happen for bricks and mortar stores.</blockquote>

I don't think so. For a brick and mortar store the transaction is simple. For every transaction made at a particular store address, only one state and maybe one or a couple of local taxes are charged. It is a trivial matter to do the accounting. And it has nothing whatever to do with where the customer lives.

It is a different matter altogether for online purchases. You have to ascertain where the customer lives and keep track of 9600 tax codes.

See the difference?

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fnj

Common sense

The issue of sales taxes on internet transactions seems crystal clear on the face of it. Just say HELL NO DAMMIT to those 9600 state and local sales tax jurisdictions for online transactions[*], on the basis of simple insanity. If the brick and mortar guys cry about their business model, let them commiserate with the buggy whip manufacturers. And yeah, that would mean so sorry, states, "use" taxes won't fly so screw you and fix that shit NOW.

[*] If your online transaction happens to be with someone headquartered in your state/locality, then yeah, I don't see how you can wave away the sales tax(es) in that particular case. But I'm not talking about "local presence" bullshit; I'm taking about the headquarters location.

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Tough Banana Pi: a Raspberry Pi for colour-blind diehards

fnj

What sets it apart

The fundamental thing that sets this apart from the Raspberry Pi and Beagle Bone in my eye is the SATA. If you don't need it, then you're not compellingly drawn to this board. But if you want to hook up an HD or an SSD for a specific reason, neither of the others is any good at all.

All the rest is just details. Yes, the CPU is ARMv7 like the Beagle Bone rather than the archaic Armv6 of the Raspberry Pi.

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Renewable energy 'simply WON'T WORK': Top Google engineers

fnj

Re: Tiny heat:

<blockquote>To make comparisons difficult, large amounts of power are given in TWHour/Year.</blockquote>

I'm not questioning this if you essentially say this is standard practice, but in what universe does it make any sense at all to measure power in TWh/y instead of the dimensionally equivalent TW?

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fnj

Re: Nuclear Power

<blockquote>waste annihilating molten salt reactors</blockquote>

That sounds so cool. Fanciful, but cool.

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fnj

Re: Then we're fucked

<blockquote>Oddly, non-renewable energy sources never run out</blockquote>

You are of course undeniably correct that at some point in the decline of supply it becomes economically unfeasible to perform the extraction. So yeah, nobody ever uses every single bit. In the extreme, they die first.

But you do understand the concept of FINITE SUPPLY, right?

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fnj

Re: I seem to remember

<blockquote>They require a rare earth material which is in very short supply to create the super powerful magnets required</blockquote>

Sorry, but with all due respect, I don't believe you. There were electrical generators (and electrical motors) before Neodymium was even discovered, let alone refined commercially. No doubt the alternatives are not as efficient, so you get less electricity out. Essentially that means it costs more, but definitely not that it can't be done. You can also replace the permanent magnets with field coils, again at a cost in efficiency.

There definitely was no Neodymium in WW2 submarine electric generators, and they worked fine.

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FLASH better than DISK for archiving, say academics. Are they stark, raving mad?

fnj

Re: Endurance?

To answer the first question: no, and the second question: yes.

Endurance measures the amount of data you can write and overwrite. Retention measures the calendar lifetime of data which has been written. An SSD which is unplugged and sitting on the shelf is a time bomb. It's due to leakage. It's strongly temperature dependent, but leakage will inexorably occur even at room temperature or below.

It would be foolish to count on data retention for more than 1-3 years on an unplugged SSD. It doesn't have to be that poor, but there is a definite tradeoff between bit density and data retention. There are microcontrollers whose flash memory is absolutely guaranteed to retain data for 10-20 years. The use case there is very different. They are basically programmed once and then expected to operate without attention for a long time.

Not that even 10-20 years is particularly impressive. Good quality enterprise tape can match or exceed that.

In comparison, fresh disk drives which are written once or a few times and then unplugged will generally have their data perfectly intact and readable 5 or even 10 years later.

So in summary, though "stark raving mad" is a bit harsh, I would say "highly ignorant" is appropriate.

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Benedict Cumberbatch in The Imitation Game: Glimpses of Turing's life, but that's all ...

fnj

Re: A genius amongst many geniuses.

The breaking of the Lorenz teletype cipher due to the genius of Bill Tutte and others, notably Tommy Flowers' Collossus, as well as being the single greatest intellectual feat of the war, was a greater boon than breaking Enigma. The Lorenz network carried the very highest level commands. Enigma carried a lot of mundane drudgework.

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How's that big mobile push going, Intel? Oh a million dollars. In 3 months? Wow (sarcasm)

fnj

Intel can't make money on Things?

I was pretty sure CPUs were things, and they sure are cleaning up on those.

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Fiat Panda Cross: 'Interesting-looking' Multipla spawn hits UK

fnj

Re: 80 bhp?

I believe you will find that you can convert any amount of power to any amount of torque by introducing a suitable ratio of reduction gearing. I mean that quite literally. Any.

Put another way, 100 kW / 10 N-m can deliver exactly the same torque to the wheels as 100 kW / 1000 N-m. All you do is select a different gear ratio.

By the same token, you can reach exactly the same top speed using a 100 kW 2400 rpm diesel as you can using a 100 kW 7200 rpm petrol engine. All you do is select a different gear ratio.

Torque champions are not wrong per se. They just miss that it is torque at the wheel that matters, not torque at the engine.

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Porsche Panamera S E-Hybrid: The plug-in for plutocrats

fnj

Re: Bunk

What I don't do is spout a lot of uninformed hot air to try to sound clever.

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fnj
FAIL

Bunk

Calling the Ferdinand Elefant a "hybrid" is just ludicrously ignorant. It was no more a hybrid than ordinary diesel-electric locomotives are, or the turbo-electric aircraft carriers USS Lexington and USS Saratoga were.

The Elefant had two gasoline engines driving electric generators wired to electric motors which drove the track sprockets.

In all these cases the electric drive was a simple replacement for a mechanical gearbox and power transmission system; no more and no less. There is no recuperation of energy on deceleration, no batteries to store electricity or cover peak demands. A hybrid is defined as able to obtain motive power from two or more sources. In all these cases, every last watt of motive power for the entire period of operation is obtained in real time from internal or external combustion engines and nowhere else.

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Boeing to start work on most powerful rocket ... EVER!

fnj

Re: The announcement is also factually incorrect @Voland's right hand

"I'm not so sure this is a bad thing. Old tech is tested and its limits and abilities better known. Why do you think this is bad, technically?"

SRBs are unforgiveably STUPID.

SRBs for manned vehicles are CRIMINAL.

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fnj

"Or maybe this time they will be built in a single piece - the only reason they were built in sections for the space shuttle was so they could be transported stupid distances."

Nope. Five segments. Sorry to tell you.

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The truth on the Navy carrier debacle? Industry got away with murder

fnj

Re: why do i keep reading about the royal navy on a computing site?

With all due respect, can it. This is by far the most illuminating site anywhere on this subject.

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Achtung! Use maths to smash the German tank problem – and your rival

fnj

Claim is wrong

<blockquote>Intelligence sources suggested the production was about 1,000 to 1,500 tanks per month. In practice it was nowhere near that high</blockquote>

Bull. Germany produced 18,956 tanks in 1944 alone - that is an average of 1580 per month.

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WD results confirm it: Disk buyers ARE spending less

fnj

Duh

Maybe it's because they both make CRAP. Everybody knows Toshibas are much more reliable.

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Red Hat to ship RHEL 7 release candidate with a taste of container tech

fnj

Re: Centos?

I bet PUIAS/Springdale's release beats the others as usual.

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Red Hat Enterprise Linux 6.5 ships, but still no RHEL 7 in sight

fnj

Re: Major changes

Bwahahaha! If you think RHEL7 will show up any time close to the first of the year, I've got a bridge to sell you. We'll be lucky to get the BETA within a year from its promised date of early 2013. And GA will not be before 6 to 12 months after the beta.

The birthing of 7 is going to make the drawn-out cock-up of 6 look mild in comparison.

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fnj

Hello? Red Hat is anyone paying attention?

I don't see anything in the documentation that indicates they have fixed the awful bug in KVM where a system with a Haswell CPU will no longer allow 64 bit BSD guests to boot. This is a really blatant and hideous bug.

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Russian spyboss brands Tor a crook's paradise, demands a total ban

fnj

Re: Again with the CP and terrorism excuses...consider the source.

"Good cannot exist without evil."

Balderdash. Of course it can. This may be presumptuous, but I have a hunch what you really mean is a whole lot closer to "Those who would give up essential liberty to purchase a little temporary safety, deserve neither liberty nor safety." It's not at all the same thing.

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WD's new disk-flogging brainwave will bring you close to tiers

fnj

Re: Ummm,

Funny, mine is a tall stack of failed and failing Seagates. Never lost a single Samsung or WD 3.5".

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World's first petaflops super dumped on scrap heap

fnj
Alert

Re: Paying to keep it running.

"With the main problem being the paying to keep it running. 2.35 megawatts at 10 cents per kwh would come out to a $2,058,600 a year for power."

Bovine excrement of the highest order. That is chump change. There are 69 million income tax payers in the US (http://wiki.answers.com/Q/How_many_tax_payers_are_in_America). This amounts to 3 CENTS each. A heavy burden - NOT. It's not even noticeable. It's so far below the noise threshold of national spending that it's not even worth one second of worry.

I also predict that your Moore's Law projection down the road is (1) outside the domain of what Moore's Law is actually concerned with (hint: it's not cost), and (2) it is nearing the point of becoming dramatically outdated as physical limits are approached.

Another thing that fairly leaps out of the numbers. The expense to run this item for its full lifespan (so far) is only 10% of the acquisition cost. It's less than the debt service on the investment.

Keep it running as a national resource. Don't even bother SELLING time on it; AWARD time on it to winning applicants based on interesting and useful projects.

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Google to offer 'same-day delivery' Amazon Prime killer - report

fnj

Re: Free delivery better

Nope. Not me. Sorry, everything I order for next day from Amazon without exception gets here the next day on the UPS truck with a bright and friendly driver, packages always in excellent shape. Standard shipping is not much use though. More often than not they use some awful trans-ship-to-post-office service and it I rarely can check the post office more than once or twice a week.

Whatever HDNL is, it must suck to be stuck with it.

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The year GNOMES, Ubuntu sufferers forked off to Mint Linux

fnj

Re: Year of Linux on the Desktop

All right, specifics. Just what does Xfce NOT do? Today; not sometime in the past.

I'll tell you one thing Xfce does NOT do. It does not insult and ignore its users.

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