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Unklejoe
searching PlanetScale…
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45 ms
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421.
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Unklejoe
10y ago
Great work. These crazy reverse engineering projects kind of make me feel insecure about my own abilities, as weird as it sounds. I wonder if I would have been able to come up with the same solution if I worked at it. My fear is that I woul
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Unklejoe
10y ago
Exactly. GPS is by far an easier way of synchronizing clocks to an atomic reference compared to any master-slave networked approach, especially in situations where we're talking about a small number of stationary, expensive servers whi
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Unklejoe
10y ago
It doesn't require hardware, though it really improves the performance. I've implemented 1588 a few times and was able to achieve ~ <30ns accuracies when using hardware timestamping. Also note that there are more and more MACs
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Unklejoe
10y ago
I think there's some sort of primal human psychological defense mechanism that takes over. I'm normally a very high strung person, but when my mother collapsed in front of me with congestive heart failure, I was unbelievably calm
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Unklejoe
10y ago
[ Finally, analysis of police shooting data as a function of county-level predictors suggests that racial bias in police shootings is most likely to emerge in police departments in larger metropolitan counties with low median incomes and a
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Unklejoe
10y ago
You know there's a problem when a majority of the comments (on a website filled with software engineers and other technologically inclined people) are all claiming that Bluetooth simply sucks in terms of usability. Imagine how hard it
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Unklejoe
10y ago
> [If you agree that the environment is worse off and that the environment being worse off causes more deaths, then you agree that they caused deaths.] ...I should have said “worse off than if VW had not cheated and all other variables r
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Unklejoe
10y ago
Exactly. It's understandable to be angry about this, but I think many people overestimate the magnitude of the issue here (or perhaps have misplaced their anger). Consider the fact that in some states, heavy duty diesel trucks (8,500 l
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Unklejoe
10y ago
All bets are off when we're talking about blatant violations of the law. Who's to say that "transparency" is even really transparent? What good are stricter controls when the people who are in charge of creating and enfo
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Unklejoe
10y ago
There's no way they can reliably calculate that. Any increase in deaths could just as easily be attributed to the increase in popularity of country music and therefore diesel truck sales. All we can reliably say is that the environment
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Unklejoe
10y ago
I'm sure many shareholders had no idea this was happening. It's not like VW had a shareholder vote to decide whether to cheat on emissions or not.
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Unklejoe
10y ago
This is the case with me. Waiting for the new AMD Zen APU. I'm actually betting that APU SOCs with on board memory (HBM) will end up replacing 90% of the motherboard in the next few years.
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Unklejoe
10y ago
I think a lot of the fear comes from the fact that if/when such a system is created, its knowledge and capabilities will only be equal to a human's for a short period of time, after which it will probably surpass any human capabil
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Unklejoe
10y ago
[do not use lookup tables, they unnecessarily fill the cache...] Good point. A major misconception that a lot of people have is that lookup tables are always faster than actually calculating a value, but cache locality is usually not given
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Unklejoe
10y ago
I saw a DJ using one of those digital encoded records a few weeks ago. Pretty cool concept, although I'm not sure what the actual difference is between that and using something like Serato which has the smaller wheels you can turn (if
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Unklejoe
10y ago
Wouldn't this be the case anyway (cache coherency overhead) even if we used types that just-so-happened to be atomic on the platform, such as "int"? In other words, isn't this a non issue when comparing the performance o
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Unklejoe
10y ago
> [Using "volatile" should make stores and loads happen where they are written in the code...] Really? I was under the impression that "volatile" basically did nothing other than prevent the compiler from optimizing o
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Unklejoe
10y ago
I wonder what the actual latency improvements will be. If it's connected through PCI express, there will be a lower limit which is dictated by the bus. While reducing the latency of the drive will still certainly matter, this latency i
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Unklejoe
10y ago
Well, we're talking about a community which is notorious for rejecting actual science and basing their conclusions on nothing more than price. Here's a good example, Just check out that description: http://www.musicdire
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Unklejoe
10y ago
Maybe audiophile quality sound when driving the high impedance input of an amplifier, but certainly not when driving headphones directly, IMO. The best portable music players I've listened to (in terms of headphone driving capabilities
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Unklejoe
10y ago
I thought there was a way to pass an MP3 stream directly over Bluetooth without modifying (transcoding) it? I could be wrong.
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Unklejoe
10y ago
You can always hard wire it and hide it behind the dash board.
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Unklejoe
10y ago
I have a 3.5mm cable that originally came with my Sega Genesis that still works fine. I've used it for all sorts of things throughout my life. If you are going through six cables per year, you are doing something wrong. Even the cheape
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Unklejoe
10y ago
I see a lot of comments that say something along the lines of "Apple knows best about what its customers want. The fact that we would prefer to keep the headphone jack doesn't matter because we don't necessarily represent the
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Unklejoe
10y ago
I guess it depends on if the IOMMU has a fault interrupt that can be acted upon. If it does, then it can probably be done. However, I'm not sure if the OS will handle this or not. When the OS runs out of RAM, it can swap pages to disk.
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Unklejoe
10y ago
Of course, something like this would need driver support. What I was getting at was the fact that there should be nothing physically preventing them from implementing DMA support, so I was wondering why they didn't already support it.
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Unklejoe
10y ago
[The GPU doesn't have DMA to the disk or RAM it has to go through the CPU to access it which causes quite a delay.] How come? If it's on the PCI bus it should be able to bus master its way into the system RAM, no? Or was this capa
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Unklejoe
10y ago
[In addition, this would have had significant play in it for some time, leading to noise which would be noticeable to most drivers when on the road, and easily noticed during any kind of worthwhile inspection (such as the MOT in the UK) - n
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Unklejoe
10y ago
It seems like implementing a security strength which is a function of the current practical CPU speed is a recipe which could lead to disaster in the future, mainly because of how reluctant some companies are to change existing systems once
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Unklejoe
10y ago
I personally knew 5 people who have died from a drug overdose, and that drug was heroin in all 5 cases. They all actually started off by abusing prescription opiates, but moved to heroin after they ran out of money. However, my area is kn
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