The Register

Reg Hardware

* Posts by Steven Jones

1056 posts • joined Monday 21st May 2007 21:57 GMT

Page:

Steven Jones

Re: Electricity Consumption - a Real Cost

In Ten... sub-£100 mono laser printers

I'm a bit dubious about those quoted costs. As an example, the Brother HL-2130 is estimated at 215kWh per year. Averaged out, that's over 24watts 365 days per year, 24 hours per day. It's equivalent to the printer being in full ready mode (i.e. hot and ready to go) for 7 hours every day and printing for 1 hour. That's well over 1,000 pages per day, vastly more than the usage this sort of printer is designed for, an wholly atypical of a home office or domestic situation. Also, the printer defaults to entering deep sleep mode (0.8W) after 5 minutes. In a domestic situation this is how it can be expected to remain for the vast majority of the time (or switched off).

In fact Brother's estimate is 0.913kWh per week or 47kWh per year which is about £5 and an average of about 5W. I think that's much more realistic for typical home use - indeed it would be at the high end in my view.

I suspect that's typical of most modern printers. Until somebody puts an energy usage monitor on one of these for a few months in a typical environment, we won't know for sure, but for now I think the estimates are simply wrong for any environment where this class of printer will be used.

Steven Jones

In Intel 520 240GB SSD

I rather think you're mistaken. The original idiom was "all told", although the "all tolled" version is used, if much less frequently.

http://www.word-detective.com/2008/04/11/all-told/

Steven Jones

Storage is a multi-dimensional issue

In Inside the mind of EMC: Is storage just a launchpad?

I'm extremely dubious about the merits of allowing applications to write to persistent storage in servers without going through properly mediated O/S interfaces. There are extremely good reasons to have very well defined API storage interfaces (security, data sharing, validation, integrity etc.) implemented by operating systems and databases. Throw this away and chaos threatens.

It's certainly true that latency can be optimised by placing storage very close to system buses, but realistically the vast majority of real-world applications will gain very little benefit once I/O latency drops below the 100 micro-second mark (well within the limits of what storage technology can do). That's a 50-fold improvement on what 15K spinning disks can achieve. Of course older arrays don't have the processing speed to support such low latencies at high I/O levels (although they can just about get there from cache). That's an argument for improving storage appliances, not throwing away decades of well-founded application and storage architectures.

Once you throw away the idea of a separate networked storage pool (whether a physical or virtual pool), then it plays havoc with application and data centre architectures, data sharing, resilience, legacy applications, manageability and much else.

No, much better to retain established I/O API interfaces (block, file & database) and their attendant network protocols. For each of these there are centralised storage appliances available (SAN arrays, NAS arrays & DB farms/clusters/appliances) where the detail of flash implementation can be hidden.

It may also be that VM farms might have their own integrated storage solutions, but the majority of storage in major data centre applications will continue to be shared and that will require appropriate storage networks.

This is an article which has all the hallmarks of theory based on just one dimension of a problem.

Steven Jones

FTTC copper pair hybrid solutions still use DSL.

In America abandoning DSL in favour of faster cable

It is technically incorrect to describe FTTC hybrid solutions which utilise copper pairs for the last few hundred metres as "abandoning DSL". Generally the copper part uses some form of VDSL which has the potential for 100Mbps or so. El Reg ought to know that DSL is a family of technologies (albeit based on some common principles), and ADSL is just one of them.

Steven Jones

I think not...

In Ten exabytes wedged into a rather large box by Cleversafe

Care to put money on that claim? That's approaching 8 orders of magnitude above current capacities, or about 23 doublings. Depending on whether you take the doubling period of Moore's law at 18 months or two years, that's still somewhere in the 35-50 year range.

Of course if you want to be ambitious, 10 Exabytes is 10^16. If we manage to store 1 bit per silicon atom, that's around 10^17 atoms (before we consider any form of access circuitry). 10^17 silicon atoms has a mass of a bit under 2 milligrams, so some might argue it isn't completely impossible, but that's about the only grounds I could give for it.

Steven Jones

Bizarre conclusion...

In Vodafone manages to fight off £3bn tax bill, claws back cash paid

@crisp

In what sense is any of that your money? Or for that matter, in what sense was it stolen? This was a matter of a disputed tax bill, and as the supreme court of a country has decided that no such liability was due, then it's rather difficult to make such a case, let alone that money was stolen. But then maybe you don't care too much for the rule of law.

Steven Jones

How about two time standards...

In Hold on a sec - leap seconds granted a last-minute reprieve

Could they not just establish some form of time standard which is decoupled from "Earth Time" and then maintain an appropriate offset. For those applications where an "absolute" time standard matters, then use that in conjunction, where required, with "Earth Time". For everyday apps where "Earth Time" matters, it's relatively straightforward to "stretch" time a little to provide for the odd "leap second" without creating big jumps.

It's not as if computer systems don't have to deal with multiple time standards anyway. Many systems have to cope with different time zones and so-called "daylight saving".

Steven Jones

Groan...

In Ten... mini hi-fi systems

Uncontrolled audio quality comparison tests which are not performed using "blind testing" techniques are next to worthless. The whole area of audiophilia is riven with mumbo-jumbo, meaningless and undefined terms and snake oil salesman.

Steven Jones

The way of the world

In Kodak heading to Chapter 11

It's a huge deal to radically change the basic technology of any major entrenched company in note much more than a decade. It's especially difficult when you run straight into the established strengths of the type of consumer-based electronics specialists based in Asia. If people want to see how difficult such transitions are, I invite them to examine how many of the top 100 US companies (by capitalisation) at the start of the 20th century are still there a little over a century later. There are very few.

Inicidentally, it's not quite true that Kodak were never a camera company. Whilst there cameras were always aimed at promoting their film business, it has to be noted that the Box Brownie was absolutely at the forefront of popularising photography.

Steven Jones

Slurp

In Dammit Ramnit! Worm slurps 45,000 Facebook passwords

There is surely no more word that suits the El-Reg headline style than "slurp". It's got that wonderful heady mix of being disrespectful, unsavoury, uncouth,monosyllabic, confrontational and making everybody feel ever so slightly queasy and unclean.

Steven Jones

Penetration?

In KIBOSH 'non lethal' sticky-bomb hits a car, fills it with gas

So just how will the gas get into the vehicle or building without penetrating it? Drill a hole? Use a tiny, shaped charge? This doesn't sound easy to me given the range of materials and thicknesses it might have to deal with. Also, in a car, it seems to me that opening the windows might rather limit the effectiveness.

There's also the little question of what these gases are meant to do. Forget any ideas of fast-acting "knock out" gases. That's the realm of Batman cartoons. Thinks like tear gas might temporarily disable those in a vehicle or cause them to evacuate it, but they have to bedelivered in reasonably large concentrations.

Steven Jones

re errr..

In KIBOSH 'non lethal' sticky-bomb hits a car, fills it with gas

The density of CO2 at atmospheric pressure is 1.98 gm/litre, so 6 litres (at atmospheric pressure) from a 12gm CO2 cartridge would be accurate, however much it was originally compressed.

Steven Jones

Not addressing virtualisation

In PCIe flashers bash storage networks

@Ammaross Danan

I wasn't addressing the value of virtualisation in my post, but of the role of I/O bottlenecks. However, since you raise it, the point you makes about virtualisation disrupting I/O patterns applies equally to any form of multi-application access to shared storage unless you maintain a system of rigid segmentation (which is usually undesirable from a storage utilisation point of view). Indeed even multiple apps under the same OS exhibit this phenomenon of disrupted I/O patterns, and this has got worse as disks have increased in capacity and fewer spindles are available. However, none of this is incompatible with the observation that I/O bottlenecks are increasingly the limiting factor on modern applications - indeed it reinforces it.

I'm well aware that virtualisation saves system boxes, power, software licensing (under some circumstances) and so on (although savings ). Indeed I go back far enough to have worked on virtualised systems in the very early 1980s. Also, virtualisation does make some other demands on fast I/O. There is a phenemomenon called I/O elongation (or it was at the time) whereby I/O latency time had the appearance of being extended (as far as the guest OS was concerned) as the I/O terminated whilst the guest machine was not scheduled to run. This means that guest OSs on I/O bound apps in contended environments tend to perform notably worse than when run native. Improvements to VM software guest scheduling has helped this, but owing to the common x64 OSs not being written with virtualisation in mind, there are limits to how effective this can be.

Virtualisation is fine, but it should be remembered there is one resource that can't be virtualised, and that is time. Any time an OS has to deal with the real world, the timing issue raises its head. If the guest OS is unaware of running under a hyperviser then there are many complex issues which can lead to unhelpful behaviour on contested platforms.

Steven Jones

Ever heard of the Hawthorne Effect?

In Germans increase office efficiency with 'cloud ceiling'

I hope the people evaluating this are aware of the Hawthorne Effect where it was determined that increases in productivity were not down to changes in the environment (which included lighting changes), but the special attention the subjects were getting.

http://en.wikipedia.org/wiki/Hawthorne_effect

Of course people are now well aware that the original experiment (and the conclusions drawn) we somewhat flawed. However, the basic Hawthorne Effect is very well accepted.

This does not mean that environmental issues don't make a difference, but it's a good reason to be suspicious of press releases and *research* from interested parties.

Steven Jones

Rubberneckers...

In Cops get 3D laser scanners for motorway crash sites

The talk about "rubberneckers" on the other carriageway completely fails to understand what amounts to the fluid dynamics involved in a busy motorway. When such a road is running close to capacity it's very susceptible to even the most minor perturbations in flow. Everybody will have come across situations on busy motorways when traffic flows freely for a while interspersed with queues of stationary traffic only to be followed by another repeat of the same. That's simply caused by a minor disturbance (or even random fluctuations in flow) leading to turbulent flow. Simply as traffic behind starts to close up on a slowing vehicle eventually, as gaps close down, eventually somebody has to brake and this gets worse until, eventually, somebody has to stop. Then you are into stop-start territory. In the case of an accident on the other carriageway, with blue flashing lights and the like, it's only natural (and safe) to ease off the throttle a little and this minor effect is enough, on a busy motorway, to trigger turbulent flow.

Of course the article has nothing whatsoever to do with "rubberneckers" - it's about the length of time that the police take when closing down motorways for investigations.

Steven Jones

Missing the point

In Comet 'sold 94,000 pirate Windows CDs', claims Microsoft

@David Neil

The OP was referring to the use of recovery images of any sort (whether partition of optical disk) rather than supplying a proper Windows Installation disk. As it is, if your PC dies and you can't get a like-for-like replacement or for certain upgrades (especially mother boards), your recovery disk is useless as it's tied into specifics about the hardware config. Of course, the OEM end-user licenses specifically tie licences into a particular PC (without defining what that means in detail), but for many, access to a proper install disk at least allows for the possibility (activation issues allowing) of installing a new motherboard or the like.

Steven Jones

CPU cycles as the most precious data centre resource...

In PCIe flashers bash storage networks

"Virtualised multi-core, multi-threaded servers are impatient. They want data for the apps in their virtual machine instantly. It's odd; now that CPU cycles are cheaper than ever before, they are treated as the most precious resource in the data centre."

Rarely have a seen a case of missing the point more thoroughly than this quote. It's not that people are worried about "wasting" cheap CPU. It's that latency time on disk I/O has failed to keep up with processors. In consequence, for many applications, the application is bottlenecked by the storage. I know of many apps which spend 90% or more of their time I/O bound. So the issue is not "wasting" CPU time, but simply not getting through workloads fast enough or giving quick enough end-user response times. It's not the CPU time that's being seen as precious, but the poor end user who's sitting in a call centre with an impatient customer.

As for some sort of direct-access memory storage model over PCIe being faster, then of course. But just how relevant is that to most large real-world apps. Firstly it's an extremely good idea to establish a clear distinction between persistent storage and volatile working space. For this you need clear and controlled access methods with controlled APIs that can provide for security, protection from rogue apps, clean restart points, data sharing and much else. Those APIs can be at various levels - blocks, files, database etc. but exist they must. Those are also ideal points to establish shared access models and are hence ideal break points for network access (as anybody whose worked on large application architectures can agree).

Then there is the issue of just how many apps can exploit ultra-low latency times. I know of many real-world apps which are I/O bound at 10ms access times. However, I know of none which would be in that position with 100 micro-second latency times, an access time perfectly within the bounds of what can be achieved on common network protocols, such as FC or 10Gbps Ethernet. Indeed in many cases the largest element of that delay is not in the time on the wire, but in navigating the software stacks.

This is not to deny that there might be some specialist uses of direct memory persistent access models over PCIe, but these are likely to be very low functions. Perhaps the networked storage units themselves (albeit dealing with single point of failure issues is important).

Steven Jones

Also puzzled

In Boffins unimpressed by LOHAN's sizzling thruster

I'm with you - not sure what adding rather less than 1% to the altitude gets for them other than just proving it can be done.

Steven Jones

Still not infinite.

In LG to show 55in, 4mm-thick OLED TV at CES

It's only perfectly black if it doesn't reflect any incident light. Even in a completely darkened room with black walls there will be some incident light from other parts of the screen, even if it's only very small. Once manufacturers start using terms like "infinite" smell marketing hype.

Steven Jones

It's diffraction limiting...

In Sony NEX-C3 compact system camera

I'd suggest a lesson in basic lens theory for the reviewer. The reason that f/32 is soft is nothing at all to do with the quality of the lens, but is just a function of the small aperture size. Any lens stopped down to F/32 (if that's an available setting) will exhbit the same effect. It's caused by the diffraction of the small aperture. In fact a 16MP APS-C sensor will gradually suffer increased levels of diffraction softening from around f11 onwards. By f32 it will be severe as the Airy disc covers about 8 pixels.

http://www.cambridgeincolour.com/tutorials/diffraction-photography.htm

Steven Jones

Squeezing the customer...

In Oracle hammered as hardware sales soften

Having worked for a very large Oracle customer, I think some of the moves that Oracle are taking are looked on with a lot of suspicion. Declaring something close to war on HP is going to cause massive disruption to many customers as migrating massive enterprise apps and, especially databases, between hardware platforms is a massively expensive and disruptive. Whilst Oracle are continuing to support x64 and Linux, it's notable that they are explicitly not releasing some of the software technology used in the Exadata OEL cluster into their general releases. I was also in receipt of all sorts of FUD from Oracle sales staff over the support for Linux on x64 vs Oracle on SPARC. The reasons are clear - just compare the price of virtually any standard component on a SPARC server versus an x64 one (memory is a good place to start).

That leaves customers with the distinct (and not unreasonable) impression that Oracle are hell-bent on locking in customers for the entire hardware and software stack. Once a customer finds themselves in this position, costs start ratcheting up and the price of extricating yourself is huge. The industry has seen this before, and new projects will be put onto more cost-effective platforms. That's what killed DEC when they over-priced VAX and what drove almost all new applications off of IBM mainframes.

Also, I find El Register's lionising of the T4. Unfortunately Oracle have declined to publish the sort of low level benchmarks that allow customer's to work out if these are practical alternatives to M series machines. There are a bunch of carefully selected application benchmarks which tell you very little save a very strong suspicion that they've been chosen because they fit the heavily threaded multi-threaded nature of the T4. However, many large corporations will have had some apps which perform disastrously on T series due to the very slow single thread performance.

The advice for anybody looking at large scale future projects is to be very wary about lock-ins to proprietary architectures. Given that, I expect that Oracle will continue to lose ground.

Steven Jones

Celebrate...

In BT, Scotland Yard form copper theft crackdown supersquad

"wonder what will happen next time it's struck by lightning?"

Those of us who've had the hellish experience of being in an IKEA store at a weekend will drop to our knees and think there is a god as the place burns to the ground.

Steven Jones

But there is a user error - and a dangerous one

In The moment a computer crash nearly caused my car crash

This was not a case of driving a car that suddenly developed a fault, it was continuing to drive a car that was in a dangerous condition. There's no excuse for continuing to drive it like that - there are call-out services. The car was clearly in a known, dangerous state and if an accident at a junction had resulted then the driver would have been liable. Vehicles can go wrong at any time - we need to be sensible enough to know what is potentially very dangerous.

So this one is a user error. Airline pilots would be grounded if they took a plane up with a potentially lethal fault.

Steven Jones

Misunderstanding MTBF

In OCZ wheels out lower octane SSD for Sunday drives

@DJO

You demonstrate a common misunderstanding of MTBF with the operational lifetime of a device. The MTBF of a device is simply the average number of operational hours between failures. So if your company has 1,000 of these SSDs, you would expect one failure every 1,250 hours (or roughly one ever 52 days). However, the working lifetime of the SSD might only be 10 years. What this means is that after 10 years roughly 70 of these SSDs would have failed, but it might be that by that they've reached the end of their operational lifetime and they start failing at a much higher rate.

In fact, MTBF tells you nothing directly about the operational lifetime of a device. That has to be expressed separately, and it might be constrained by something other than the passage of time - in the case of SSDs, that measure might be the number of write cycles, whilst with HDDs powered-up time might be the relevant figure. With a car engine, it might be total mileage.

Of course it's right to be sceptical about MTBFs as these are not independently reported (and at the beginning of the devices life, they are extrapolated.

Steven Jones

Still culpable

In Mythbusters cannonball ‘myth-fires’

In which case those who got the evaluation wrong should be in the dock for this one.

Steven Jones

Legal action?

In Mythbusters cannonball ‘myth-fires’

Surely, even in the land of the free, this one must be attracting the attention of the legal authorities. I suspect recklessly firing cannon balls in an urban area might just have breached some local laws.

Steven Jones

Relative cost...

In Navy pays 2x purchase price to keep warship docked for 5 years

I'm dubious over the validity of using measurements of the value of currency over time in calculating relative costs. Given that the vast majority of our current GDP comprises products, technologies and services that either did not exist in 1765, or would be so altered as to be completely unrecognisable, it's not a great measure of the real cost of something like HMS Victory to either the exchequer, or the country as a whole. Also, the country has a vastly higher (inflation corrected) GDP these days.

A much better way of looking at HMS Victory's cost is to take it as a proportion of the country's GDP, total State Expenditure and defence budget. According to the estimates at http://www.ukpublicspending.co.uk/index.php?year=1765, UK GDP was £89.4m in 1765 with £12m state expenditure of which defence was £6.1m. For those that care for such things, the national debt, at £133m, was considerably higher as a proportion of GDP than it is today.

The £63,176 capital cost was equivalent to a little over 1% of one year's defence budget, just over 0.5% of one year's state expenditure and approximately 0.07% of a year's GDP.

Current estimates are that a single one of the new carriers will cost approximately £6.2bn (although nobody really believes that will be the final figure). Taking this as a proportion of 2010's GDP, public expenditure and defence budget (£1,453bn, £660,6bn and £43.2bn respectively) this places one carrier at approximately 14.3% of the defence budget, 0.9% of state expenditure and 4.3% of GDP.

Whatever way you look at it (inflation adjusted, %GDP, %State spending or %defence budget), these new carriers look like expensive naval toys. Even in terms of the country's total output, they are something like 60x more expensive than HMS Victory. I suspect that Victory's 0.07% of GDP might get you a submarine or three frigates.

Of course the headline is nonsense - £16m is just 0.001% of the GDP, so in terms of national affordability, that 5 year maintenance figure is about 1/70th of the initial capital cost.

Steven Jones

Convenient conclusion - for them

In Swiss insist file-sharers don't hurt copyright holders

Very convenient for the Swiss, not exactly known for having a lot of music, film or other such content which citizens of other countries might wish to download. Now, of course, should any other country want to break any of their companies' many patents, they might take a different line. In the meantime they will carry on acting as a convenient location for many a despot's ill-gotten gains and facilitating wealthy tax evaders.

Steven Jones

Aerodynamic...

In What should a sci-fi spaceship REALLY look like?

Of course if a space ship confines itself to space and planetary bodies without atmospheres they do not have to be aerodynamic. However, short of some magical property that allows spacecraft entering a planet's atmosphere to avoid the normal laws of aerodynamic, it would seem rather sensible to make them work well in that environment. After all, the Space Shuttle was so designed as were the re-entry capsules for manned missions using disposable rockets. So the alien's choice of an aerodynamic saucer shape might appear quite sensible, albeit unnecessary for the mother ship which is presumably sitting out beyond the atmosphere.

It's notable that Arthur C Clarke (who cared about such things) had the Discovery 1 as a functional, deep-space design and not an aerodynamic one.

Incidentally, Prof Brian Cox once acted as an adviser on a Sci Fi film, and he noted that one thing which always had to be included was sound effects in a vacuum. Space battles simply don't seem to be convincing without those.

Steven Jones

In Superhero oil-burping algae will save the world

Indeed the Sun - and a lot of it. However, one advantage of artificial hydrocarbons is that the can be readily transported, as the oil industry demonstrates daily. However, that would still leave the enormous problem of covering millions of square km of suitably sunny land with the appropriate plant and keeping it supplied with fresh water etc.

Humans use roughly 500EJ of primary energy a year whilst about 3,000EJ (equivalent) of biomass is created every year. If all 500EJ of primary fuel (the great majority of which are fossil) was to be replaced by artificial hydrocarbons, that would be equivalent to about 17% of the World's annual biomass generation. That's a lot of land area - in the millions of square km, and getting enough freshwater to (say) the deserts rather than displacing agricultural or natural rain-forest and the like is going to be an engineering project, the like of which has never been dreamed of to date.

Steven Jones

There's always one...

In Superhero oil-burping algae will save the world

@Anonymous

Congratulations on completely an utterly missing the point. The issue is about the thermodynamic efficiency of the photosynthesis process. What that means is how much of the energy in light gets transformed plant (or other biological) material in terms of its embedded energy content (basically the thermal energy when it's burned). Yes, CO2 is necessary, and yes (up to a limit) more CO2 will allow plants to grow faster, but not beyond the limit given by the theoretical thermodynamic efficiency of photosynthesis (and in practice, not that high). So if photosynthesis-based processes cannot, in practice, turn more than 6% of the energy in light into bio-fuels, that's what you are stuck with - however much CO2 you throw at it. The energy produced is simply limited by the light.

Theoretically, the inherent photo-chemistry of the photo-synthetic processes might be able to reach about 10%, but that would mean engineering living organisms which had virtually zero overhead and an improbably high level of efficiency of other processes. Evolution has had about 3.5 billion years to work on the problem.

In comparison, good solar panel thermodynamic efficiency can reach about 20% with the theoretical limits approaching 40% using silicon (albeit only reachable in lab type tests at the moment).

Either way, it's going to take an enormous amount of land and fresh water (and maybe phosphate and potassium) to generate all the artificial hydrocarbons we would need to replace fossil fuels.

Steven Jones

Photosynthesis & thermodynamic efficiency

In Superhero oil-burping algae will save the world

One little problem is that that photo synthesis in real organisms is less than 6% thermodynamically efficient in converting light into plant material (often much less). That's before anything required to turn it into hydrocarbons (either by external processing or directly within the organism). The basic chemical reactions allow for somewhat higher theoretical efficiency, but just how well that can be engineered is debatable. After all, evolution has had the odd few billion years to work on the issue.

What this means is that huge areas would be required to produce all the hydrocarbons we currently use. After all, for the great majority of human kinds history, bio-fuels are all we had at vastly lower population densities and levels of personal consumption. No doubt we can improve on growing trees to burn as fuel, but it's very unlikely to match using up the stored energy resources laid down over hundreds of millions of years as the direct, and indirect result of photosynthesis.

What we really require is something which is much more efficient at turning solar (and thermo-nuclear) power into synthetic hydrocarbons which are, the article says, conveniently energy dense and (relatively) safe and cheap to store and handle.

Steven Jones

What about the risk to us?

In Ofcom denies privacy to drunk-dial-and-drive trucker

"He has argued that repeats of the programme would put his return to work at risk."

In which case the BBC would have done us all a favour. Given the amount of damage a 44 tonne truck could do (3-40 times the kinetic energy of a car at the same speed), it occurs to me that the last thing we want is a driver twice over the legal limit driving one of these things, let alone being on a mobile phone as well. It also rather brings into question the sentencing a £115 fine and a one year ban is fairly mild given just how dangerous such a vehicle can be capable of far more damage than a car.

Finally, surely one has to wonder about those recruiting truck drivers if the it's the appearance on a BBC programme which would be the deciding factor. I would rather hope that prospective employers would take more note of his actual conviction and ban, or do such matters no form part of recruitment?

Steven Jones

Potential Offence

In Truly unlimited mobile for $19: How can it be true?

If this device can latch onto any unprotected WiFi network there is a very real possibility that the owner might be deemed to have committed an offence in the UK. This story from El Reg in 2008.

http://www.theregister.co.uk/2008/02/21/wi_fi_squatting_arrests/

Steven Jones

Not El Reg's finest moment...

In Swedish college girls now twice as slutty as in 2001

Given that headline, I'm not surprised Sara Bee decided to up sticks and leave El Reg.

Steven Jones

Universal Service Obligation

In Telcos snub UK.gov broadband cash pot

"BT are legally required to connect a telephone line to any residence or premises in the UK."

There is a caveat to that - it's cost-limited to £3,400 pound. If the installation costs exceed that figure it's a cost to the customer. Having said that, it takes an awful long time time to recover £3,400 at wholesale line rental rates, especially when such costs include maintenance, rates and so on.

http://stakeholders.ofcom.org.uk/consultations/uso/main/

Steven Jones

Testing methodology?

In Ten... Blu-ray disc players

I'd be more convinced about these comparative reviews if there was anything approaching a blind test. As it is, all this talk of superior audio and video quality is just so subjective as to be useless. Of course, the expense of doing properly controlled blind tests is enormous, but as it stands all this impressions stuff has to be taken with a large pinch of salt. For much the same reason, the Hi-Fi mags long ago went into unknowing self-parody propagating myths and pseudo-scientific nonsense.

I'm waiting for the first comparative review of HDMI cables, then the end will surely have come.

Steven Jones

Headline again...

In Swiss boffins produce working cloth made of GOLD

So this isn't cloth made of gold, but cloth woven from textile threads coated with a very thin layer of gold.

Steven Jones

Puzzled by the headline...

In German boffins BREAK LAWS OF THERMODYNAMICS!

I have read this several times and I also fail to see where this breaks the second law of thermodynamics. If there's a temperature difference, and this can be exploited to produce electricity, then there is surely no contradiction. What would be a contradiction with the second law is if useful energy would be extracted from a device at a uniform temperature.

Just calling something "waste heat" is not sufficient - that's just a qualitative term. A thermal power station's waste heat might be a horticulturist's useful source of energy for heating a glasshouse. The clever trick would be to extract any useful work once temperatures have been equalised with the environment. Then somebody can claim a miracle.

Steven Jones

A third more capacity?

In What flash needs is a little TLC

"The breakthrough when flash becomes affordable is thought by many people to be TLC (triple-level cell) – 3-bit multi-level cell NAND – which adds a third more capacity to flash cells."

Wouldn't going from 2 to 3 bits per cell add a half, not a third more capacity?

Steven Jones

Time pressure is no excuse...

In BT cable ballsup hooks up punters to wrong numbers

I rather suspect that reconnecting many hundreds of individual pairs under considerable time pressure to restore service isn't going to result in 100% accuracy. Maybe the person who screwed up by sending out tens of thousands of email addresses might be stuffed down a manhole to splice wires as a form of punishment.

After all, we know that time pressure is no excuse, especially when there's important things like The Register's email list to deal with. It's not like restoring telecoms services is anything like as important as that.

Steven Jones

Are there engineering & cost criteria

In Winning new UK pylon design may never be used

Are these things being assessed by structure engineers? Are there engineering and cost criteria, or is it just aesthetics?

The existing lattice designs were produced for a reasons such as strength, resilience and economy of materials. It strikes me that some of these new designs are quite pretty but will present engineering issues. For instance, those single column designs will surely need much deeper foundations than something more widely based. The central column will have to survive quite high bending forces and will either have to be quite large diameter, or built of thicker/stronger materials, or possibly both. Also, how will these designs cope with changes in direction of the grid lines? That inevitably ends up with high side forces (although I suppose that pylons in such location could be built to a stronger standard whilst maintaining the aesthetics.

Finally, I suspect single columns are more vulnerable to sabotage than lattice arrangements which are actually more resistant to damage. Indeed, a lattice design can be engineered to allow replacement of failing/corroded members without having to dismantle the whole thing. I don't see how this can be done with these single column designs.

Steven Jones

Let's stop ISPs looking at IP addresses and other fantasies...

In Busting net neutrality may amount to spying, says EU

"But headers contain IP addresses, which may or may not be personal information which ISP's aren't supposed to look at."

Isn't it a trifle difficult for an ISP to route a packet with looking at the IP addresses?

Of course the issue is what such information can reasonably be used for, not whether it can be looked at. Clearly the header contents have to be looked at for reasons of routing, traffic balancing, intrusion detection, general traffic management, capacity planning, service management and dozens of other legitimate purposes.

The whole net neutrality debate is characterised by the use of emotive terms playing to the audience and precious little to do with the real technical issues of making efficient and reliable uses of networks.

Steven Jones

Bad news week

In Ads watchdog slaps down Sony smartphone battery life claim

What with flooded factories in Thailand, combustible Bravia TVs, mass hackings and now this, it's not exactly good news week for Sony.

(Although AP have given the A77 a glowing review).

Steven Jones

I won't count any chickens

In Oracle's Sparc T4 prices mask improved value

No SPECjbb's were released for the T3 - I don't see them doing it for the T4.

SPECjbb (and Specint for that matter) is a very easy benchmark to run - it takes a tiny fraction of the resources of one of those big app benchmarks.

Steven Jones

Lack of basic benchmarks

In Oracle's Sparc T4 prices mask improved value

SUN used to at least publish T-series friendly basic processing benchmarks (like SPECjbb). Now Oracle are even suppressing these. These show-piece application benchmarks are all very well, but they bear no resemblance to how these ERP packages tend to get configured and used in real life.

Sensible people will be asking how do these machines compare with x64 on throughput, response times, costs, power consumption and so on. That's where the real competition is.

nb. T series performance can be a very tricky thing - once those H/W threads start competing for the core resources, then you can get dramatic worsening of response times (depending on app). Of course a carefully tuned app benchmark is not going to be entering those dangerous waters. It will be tuned for the marketeers, not systems people...

Steven Jones

Weight?

In Brit boffins' bendy bamboo bike breakthrough

It would be more impressive if they actually quoted a typical weight for such a frame. I rather doubt it will out-perform a carbon frame which has similar shock damping characteristics (anyway, it must be better than large diameter aluminium which has horrid shock absorption). I also suspect that they have to build in a much larger safety factor than with less variable materials which are less affected by environmental degradation.

Given that bamboo will bio-degrade, I hope they treat this with lots of (nasty) preservatives, our you might find this nice expensive frame will have lost a good bit of its strength after being stored in a damp shed for a few years.

Nb. for comfort, I don't think anything beats a titanium frame.

Steven Jones

Try looking up anti-competitive activities

In Oracle's mighty column stuffs databases

It's what is called an anti-competitive activity. It's an attempt to lock out competition by exploiting a customer base who are locked in by their own investment in systems (many of which were developed before Oracle took over).

It's an old, old story - just look it up. Eventually competitition authorities have to be involved. It happened to IBM, Microsoft, Standard Oil and a number of others.

Steven Jones

Yet more signs of Oracle wanting to own the world...

In Oracle's mighty column stuffs databases

Oracle did not invent columnar compression. It's been around for decades. What is concerning is that Oracle is limiting its availability to its own hardware.

It looks like Oracle are lining up a formidable array of corporations as enemies among which canbe found HP, IBM, NetApp and EMC to name just four. Anybody who can find common cause among that lot has pressed a few carefully placed buttons.

Steven Jones

The real gainers

In 'There'll be nothing left of IBM once I'm done,' says Ellison

This is going to keep a lot of lawyers in work and make not a few even richer than they are now. I can just imagine the lobbying going on with the regulatory authorities at the moment. That's assuming the regulators have the stomach for such a fight.

Page:

Forums

Forgotten password