AlisdairO

76 ms·

751.
by AlisdairO 18y ago
> Now lets look at it in a realistic context. The society where rich people can afford something today is a society where poor people said something tomorrow. And where there will be another thing (of some critical importance) that the
752.
by AlisdairO 18y ago
...except that in this case, when you take full control of the memory management, you slow things down. The problem with using pointers (without using the restrict keyword) is that it can seriously impede out of order processing on modern
753.
by AlisdairO 18y ago
The disparity between rich and poor is something that society actively decides upon, and society would be well advised to take into account the ramifications of its decision. Part of that information being that the absolute value of an i
754.
by AlisdairO 18y ago
Much as I take his overall point - that a close to the metal language is not always best for performance - the author would be well advised to take a look at the C99 restrict keyword.
755.
by AlisdairO 18y ago
I'd imagine that the poor are poor relative to the rich. Individual's happiness with their economic position tends to be based to a significant extent on what they are earning relative to other people.
756.
by AlisdairO 18y ago
Not really. The .01% generally have vastly greater power and effective rights within society - ensuring that that doesn't go overboard isn't so crazy.
757.
by AlisdairO 18y ago
I'm looking at JVM performance optimisations at the moment (I'm working on cache-friendly data structures for DBMSs, and interested in how running this stuff on a JVM affects things). As just a little test, I wrote an identical binary sear
758.
by AlisdairO 18y ago
Why so ridiculous? Those .01% often have a vastly disproportionate impact on the rest of the society, so it only makes sense to have special rules for them.
759.
by AlisdairO 18y ago
To be fair, column storage isn't just engineering around the peculiarities of disks (although that's the biggest part of it). Columnar storage offers large benefits in compressability and when working with wide tables. In a wide table/row
760.
by AlisdairO 18y ago
OLTP workloads will certainly be accelerated by SSDs. They tend to involve a lot of random reads/writes, and the former in particular are massively accelerated by SSDs. The latter seem to be getting better as the technology matures. I th
761.
by AlisdairO 18y ago
Absolutely - SSDs make irrelevant a lot of the advantages that a denormalised storage model provides: denormalisation means fewer seeks but more data stored/read, which is often a good tradeoff for disks, but not for SSDs. It should be not
762.
by AlisdairO 18y ago
Then he's criticising the applicability of column stores to a mode of use for which they're not designed. While there have been suggestions that correctly implemented column stores might provide acceptable OLTP performance, I don't see man
763.
by AlisdairO 18y ago
He's right, in some ways. Long term, SSDs are going to have a massive impact on DBMS technologies. Disk latency is the dominant performance inhibitor for a lot of DBMS applications. The area I'm working in, RDF triple stores, involves la
764.
by AlisdairO 18y ago
Hm. You're right, I didn't adequately address your post. My apologies. When it's over that many millions, then yes, I think it's reasonable . It's highly questionable whether any individual is actually worth, say, 100 million a year. T
765.
by AlisdairO 18y ago
The first point to note is that the 90% rate kicked in at an earning rate of several million in today's money. The second (more debateable) point is that the rich, in the end, receive greater benefit from society than the poor. The poor ma
766.
by AlisdairO 18y ago
As someone who was previously obese, I tend to believe that there is a good argument for genetic variation being a cause of weight gain. I'm sure that some people gain weight easily even on small amounts of food, but I think variation in f
767.
by AlisdairO 18y ago
It is enforceable. I agree that it's hard or impossible for rights holders to effectively defend their IP in the current environment, but it wouldn't be all that hard for governments to make torrenting too much like hard work for the avera
768.
by AlisdairO 18y ago
The concept of a victimless crime is difficult: let's say we have a kid with no money. Currently, pretty much the default route for that kid to get music is to simply pirate it. In the past, a music-loving kid might have done extra chores
769.
by AlisdairO 18y ago
What's the fundamental difference? Bloggers don't want to be plagiarised because the plagiarism destroys the remuneration that they get from their work: reputation, feedback, etc. Pay for media doesn't want to have work copied because it d
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by AlisdairO 18y ago
Thanks for the info :-)
771.
by AlisdairO 18y ago
Forgive my ignorance, but what exactly is schema sharding? I assume given the rest of your post and its common use in many DBMSs you're not talking about horizontal partitioning.