These probably won't make a change to the chip shortage or surplus, since all GPU chips are made in the same factory regardless.
250 publicly visible posts • joined 18 Oct 2012
In local news, Yandex says Ilmatar started providing energy from First of January, but canceled the contract "on a technicality shortly after". Yandex says it offered to pay higher rates for the contract to continue.
The energy sellers they've contacted have given "formal excuses" for being unable to sell energy.
As a local it amazes me that there wouldn't be even a single supplier willing to take a PR hit in exchange for a large electricity sales contract. There would be concerns about payment, even in best of times russian companies have a reputation of being tardy at paying bills. The local energy distributor Nivos did comment that Yandex has always been punctual when paying their bills, and Yandex itself said they've opened up their books to potential energy sellers to give assurance of their financial stability and ability to pay electricity bills in the future too.
The detail that their previous PPA was canceled "shortly after" makes me wonder if they meant before the war, which would make the whole event more interesting. From the point of view of a seller wanting to make a quick buck, they could offer hourly market price plus a margin, putting most of the risk on Yandex. The DC power consumption should be extremely predictable, making it financially a very risk free sale.
I think there's something more going on than a spontaneous boycott of Yandex by energy firms.
Re: That NAS under the stairs
Many current routers have USB3 ports and advertise hard drive support through smb1. I've seen a lot of people use this feature to plug in usb flash or hard drive for inexpensive backup destination.
The reason routers never upgraded and are sold with smb1 even today is because the branch of samba with smb3 support is way too bloated to fit in a router. Smb2 results in half the performance of smb1, so most often it gets disabled even though the router's software could otherwise support it.
Re: Wind Farm Remote access
I suppose back in the days there was never really any reason to have windfarms idle in high winds? I wonder if that's the biggest use case for remote connectivity these days, to modulate production when electricity prices turn negative?
(Instead of random powerplants tripping due to high frequency)
Re: Brilliant programming
Probably the testers never thought to test flying a simulated missed approach at a runway where the charts tell you to make a 270 degree turn to the left in order to fly right.
At least, that's how I understood it, that fiddling with certain parameters will result in the plane turning 90 degrees to the right instead of the long turn 270 degrees left, but in both cases will end up flying in the correct direction.
The benefits accumulated from years of living densely has come back to reclaim.
Those who have endured living sparsely now find they're less restricted than the fat cats of the cities.
People in "full" quarantine conditions in the cities, will still be served better by home deliveries or groceries, pizza, and other exotic take away foods than the unquarantined man outside the city. The city people have in some cases paid ludicrous amounts of money for their dwellings, and if they're quarantined it will be a relatively short period of their life confined to enjoy what is definitely the largest investment in their life.
Take a moment to stop and think about what really matters in life.
Don't Flip out or anything, but the 'flexible glass display' on Samsung's latest pholdable doesn't behave like glass
Re: If "smart meters" are so good
I would’ve benefitted from a smart water meter. If it would’ve let me look at usage history hour by hour.
Eventually I figured it out, that the inherited washing machine, the finest mid 80s engineering from Germany, skillfully crafted from what was no doubt spare armour plates originally destined for the Bismarck (judging by its weight), was consuming around 5 bucks/quid/euro in water each wash!
Although sometimes I wonder if the modern machine is worse, saving water by cheerfully claiming the wash is done when half the soap I put in is still obscuring my laundry from view.
Re: Heat pumps don't like to have their power cut
I’m in Europe,recently installed a heat pump. It has inputs for signaling “power is practically free now “, “power is cheap”, “power is expensive”, IIRC.
Of course, the electricity supplier’s meter doesn’t have a single I/O despite being a “smart” meter. I’ve considered making a raspberry Pi screen scrape their website and signal my heat pump.
Years late to the SMB1-killing party, Samba finally dumps the unsafe file-sharing protocol version by default
Re: Now we wait...
I've been told that yes, they're aware they're still running smbv1, but they can't update it because the branch of Samba with >SMBv1 support is *massive* and simply won't fit in the available flash memory.
The mythical unattributed source also claimed there have been backporting efforts to get >SMBv1 support in the lean and "unbloated" branch of Samba, but it's too unstable to be deployable.
So yeah, this is my usecase for SMBv1 too, harddrive hooked up to WiFi router, and PCs backup to that network drive. And I'm too cheap to pay for a router with enough flash to fit recent samba. :-)
Go fourth and multi-Pi: Raspberry Pi 4 lands today with quad 1.5GHz Arm Cortex-A72 CPU cores, up to 4GB RAM...
Re: Simply Ghastly...
That is a very good observation!
Stick shaker and stall warning comes on. Pilots think plane is nearing stall.
Nose dips down - yep, definitely stalling for real!
But how can the airplane stall at 300 knots? The airspeed indicator must be wrong.
They manage to recover, try to guess their airspeed, make sure they're going fast enough.
Still the plane repeatedly stalls.
Icing? In Africa? But it would also explain airspeed indicator fault.
Are spoilers and flaps stuck? Troubleshoot the hydraulics, get them to ret*crash"
... And they failed to notice the trim was moving on its own, and didn't run the right checklist to deal with that.
Re: This seems like a good argument for ion drives
Dawn had ion engine for trajectory changes.
What I'm curious about is whether it also has reaction wheels or similar for attitude control, whether those had also failed.
It would also be interesting to know what kind of spool-up spool-down delays, if any, ion drives have, and how much efficiency is lost during that time.. and if they could be made small enough to be used for attitude control. You'd need 8-16 of them.
Re: But why were the transmitters shut down?
If dead probes weren't shut down, you'd eventually have no frequencies left for new probes to transmit on. So they shut it off, while it's antennas were still pointing close enough towards earth to be able to receive commands.
A US navy navigation satellite launched in 1964 still wakes up occasionally when it gets sunlight on its panels, and transmits telemetry. At its job of navigation satellite it failed 2 months after launch.
Iirc, Apollo era fault detection, and probably Soyuz too, consists of a long piece of wire that runs up and down the length of the rocket. If the rocket goes boom, the wire is broken, which triggers abort.
Then it's a question of how fast explosive bolts and the abort motor light up after being lit up. Hopefully fast enough that the fireball shockwave still hasn't reached the crew.
Maybe y7 can type daater ok no. Capacitive touch keyboard, but 2-@5# the poibt wjeb y97 spend nor3 time fixing ty09#?
Maybe you can type faster on capacitive keyboard, but what's the point when you spend more time fixing typos?
Or at least, despite efforts I still can't type better than the above on touchscreen. Mind, I held out with qwerty until 2014 or so, so I've only had 4 years practice time..
Re: eSIMs make so much sense
My operator used to have a service like this, for 3.90 Euro a month I got 5 extra SIM cards, all with the same phone number. All phones rang at the same time, but SMS only arrived on the main phone.
Apparently this was too good of a serviy, because they only sold it for a few months. I used it for about 8 years before my level of geekiness dropped to having only one phone.
Re: Forget the geeky stuff, sort out the user experience.
From my observations of random people trying gimp, they can't find anything because the buttons are all in windows floating around, sometimes with scrollbars, sometimes not.
Then, eventually, they try close gimp, except most of the time they close all the toolboxes before closing whichever window that makes gimp actually close. On next start, all the toolbox windows are gone, and user wonders where everything went, or concludes that maybe he/she misremembered and that gimp actually has no features.
Re: Good news, everyone!
Hand a laptop or phone manufacturer a battery twice as good as their current batteries, and their next device will have a battery half the size of their previous device. Marketing will be hyping the thin sleek design, and everyone will still be whining about how battery technology isn't keeping up.
Re: Replacing the batteries.
The different range options on a Tesla actually uses the same physical battery, the software limitations are just different. Now then, why does it cost more to be allowed to use more of the battery's capacity? Because using less makes it last longer and lowers Tesla's warranty repair costs.
When it comes to phones, the phone manufacturers crank the settings all the way to the "maximum capacity, some explosions, short life" end of the scale. And sometimes a bit too far.
From a northerly Scandinavian perspective, the bicyclist was out in the dark without wearing reflectors on her person, her bike was lacking basic side reflectors, and the legally mandated front light was not present or working at the required level. Crossing that road seems dubious at best, and I wonder how the bicyclist didn't notice the uber's headlights when, presumably, looking to both sides and listening for cars before crossing the road. The road could use fencing in the middle to prevent crossing by moose and pedestrians, except for designated moose and/or pedestrian crossings.
The driver was distracted by presumably a phone, and speeding.
Fine them both, improve the road, case closed?
Re: UPSs lack the kind of sensor information that protected car batteries, Raymond wrote
The only cars I've seen have 14.5V regulated alternator, that if you're lucky is temperature compensated. Low voltage protection doesn't exist, but sometimes happens accidentally because the starter solenoid just drops out when voltage collapses. Some fancier fuel burning heaters with timers do have low voltage cutoffs, though.
Re: Where are you?
Except really cheap LED bulbs which just have a bunch of LEDs in series straight on AC with perhaps a resistor or current limiting capacitor.
The retrofits that have a tiny lag in between flicking the switch and turning on, you can be sure has some sort of actual driver circuit..
Re: Handbrake users beware
Funny, I thought video conversion would be minimally hit, as it consists mostly of:
read(very many bytes); process (very long cpu intensive code); write(very many bytes)
Where, if the read and write are implemented as sending big requests to the kernel, should be minimally affected. The processing portion of it is surely 99% of the whole processing time anyway?
I could believe things like a database would slow down, when it's hopping all over the place on disk looking for/writing data. I could believe facebook slows down alot, because browsers are doing lots of itsy bitsy tiny reads and writes to both disk and net, and lots of small updates of the screen to animate all the gifs and what not.
Re: "To provide a better experience to customers"
What's preferable, phone unexpectedly shutting down without warning, or phone slowing down to avoid sudden shutdown?
The big issue is of course that the user wasn't notified in either case, on any brand of phone (androids also suffer from thus when their battery gets old, sudden shutdowns despite having 30% left).
On the other hand, it's not an easy problem to solve. Unexpected shutdown means unexpected, even if there was an algorithm trying to collect data about the operating state of the cpu and all its peripherals, and recording battery voltages, when unexpected shutdown hits you lose the data. The hardware shuts down to protect both the battery (since they become unstable from operating at low voltage) and the CPU, ram and storage from corrupting data due to insufficient voltage.
AMD have a "clock stretching" feature in some of their CPUs, if the voltage inside the CPU drops the frequency slows down. It's mostly meant to allow them to operate with lower voltages and save power by not needing as big "safety margin" in voltage. Would be interesting to see something similar in mobile SOCs!
It's kinda remarkable that battery meters are still so bad at tracking the capabilities of an aging battery. On one hand, it's a kinda neglected area where manufacturers choose the cheapest component. On the other hand, it's a difficult problem! Batteries aged in standard cycle testing behave differently to batteries aged in real life. Batteries in real life age differently depending on how they're used and charged.
What do I mean by aged differently? As is well known, a battery's voltage sags when you put a load on it. The bigger the load, the more the voltage drops. The amount of drop is, for most part, a linear function of the load. When the battery is new, the sag is so small it makes no difference. The amount of sag can be described as internal resistance. More internal resistance means more sag.
On a new battery, the internal resistance stays nearly constant regardless if the battery is 100% or 20% full. Towards empty it becomes a bit higher. With an ideally cycled and aged battery, the capacity is lower, and the internal resistance is higher, but the internal resistance is still around the same order of magnitude regardless the battery is full or empty.
With batteries aged in real life conditions, where the battery might've spent a lot of time at 100%, a lot of time at 0%, a lot of time in heat, etc, the results on internal resistance will be different. The internal resistance might sharply rise as the battery discharges. From the initial situation with a fresh battery having a flat internal resistance curve vs state of charge, to having a inclined straight line describing an increased resistance at empty, to having exponentially increasing resistance towards empty.
Why does this all matter? Because currently there's no battery meter chip that can take into account anything except the "internal resistance is the same regardless of how full battery is" situation. Most chips don't account for internal resistance at all.
So from an engineer's perspective, if Apple is actually tracking actual battery performance and managing to make their system adapt to having a smaller and smaller power budget, that's kinda impressive. Makes me glad someone is finally paying attention to adding more sophistication to battery management systems!
Of course, they could just have put in a battery twice as big and they wouldn't have had issues with shrinking power budget for the phone's "lifetime", and they wouldn't need to consider aging battery.
Re: Battery shape?
It's more like, the more you focus on a battery's ability to deliver high peak power, then more you take away from its ability to to store energy. It's a tradeoff. Mobile phones very much favour capacity over power, Apple perhaps more so than the rest. Also keeping in mind that Apple has very powerful CPU while at the same time having "unremarkable" battery capacity, in remarkably small space, it pushes everything to the limit.
In this case they pushed it perhaps too far, when some batteries have aged a bit too fast.