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x1f604

HN member
Joined
Sun, Nov 28, 2021, 10:51 AM UTC
HN karma
204
Public activity
27 items

About x1f604

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Recent public activity

  1. comment
    Comment #47120033

    BAR runs fine on low end CPUs...until you have like 2,000 units on speed metal

  2. comment
    Comment #47120022

    This is one of the problems that BAR solves beautifully - a player could leave and rejoin later and the game would continue running just fine. An existing player can choose to take…

  3. comment
    Comment #47120013

    I feel like the issue is more that their pathing algorithm is very inefficient. Not sure why using multiple cores would solve the problem if the cause of the lag is that their path…

  4. comment
    Comment #45004828

    > Demis Hassabis has recently given an estimate of human-level AGI in 5 years He said 50% chance of AGI in 5 years.

  5. comment
    Comment #42809200

    It is not rare for flash storage devices to lose data on power loss, even data that is FLUSH'd. See https://news.ycombinator.com/item?id=38371307 There are known cases where power …

  6. comment
    Comment #39972327

    From the book: (Warning: Spoilers ahead) > The next day I told Parry that I was flattered but would not make pentaborane. He was affable, showed no surprise, no disappointment, jus…

  7. comment
    Comment #39039661

    I don't think it's a register allocation failure but is in fact necessitated by the ABI requirement (calling convention) for the first parameter to be in xmm0 and the return value …

  8. comment
    Comment #39039633

    Based on my reading of cppreference, it is required to return negative zero when you do std::clamp(-0.0f, +0.0f, +0.0f) because when v compares equal to lo and hi the function is r…

  9. comment
    Comment #39039616

    Even with -march=x86-64-v4 at -O3 the compiler still generates fewer lines of assembly for the incorrect clamp compared to the correct clamp for this "realistic" code: https://godb…

  10. comment
    Comment #39039609

    Even with -march=znver1 at -O3 the compiler still generates fewer lines of assembly for the incorrect clamp compared to the correct clamp for this "realistic" code: https://godbolt…

  11. comment
    Comment #39039578

    Yes, you are correct, the faster clamp is incorrect because it does not return v when v is equal to lo and hi.

  12. comment
    Comment #39015529

    I think the libstdc++ implementation does indeed have the comparisons ordered in the way that you describe. I stepped into the std::clamp() call in gdb and got this: ┌─/usr/include…

  13. story
  14. comment
    Comment #38971558

    Medium recommended me this article. Reading it made me realize that I've wasted my youth on useless side projects that don't generate revenue and that realization filled me with dr…

  15. story
  16. comment
    Comment #38933936

    I don't know exactly how Backblaze does it, but in the normal case, reconstruction is not computationally expensive because the 17 data shards are just pieces of the original file …

  17. comment
    Comment #38933665

    > Consider a company that stores users’ emails in the cloud — that is, on a vast array of servers. You can think of the whole collection of emails as one long message. Now suppose …

  18. comment
    Comment #37559713

    Do people understand code by line-by-line reverse-engineering what the code is doing, or do they understand it by relating it to what they've written before? If the latter is the c…

  19. comment
    Comment #37334539

    > The subject seems to be completely non linear Is this not the nature of learning in general? Why is it supposed that learning things in the linear A-B-C-D fashion is even possibl…

  20. comment
    Comment #37272127

    > At 7% annualised, those $38K would deliver around $33M over 100 years. I'm sorry, I don't understand your point. If you invest that $38K then you will have $33M after 100 years t…

  21. comment
    Comment #37272072

    Sorry, I don't understand how the plan becomes cheaper after factoring in inflation. Wordpress is asking you to make a one-time payment of $38k NOW. Not in the future. Inflation me…

  22. comment
    Comment #36898518

    > Fastest Should be "Fastest on my machine" (where file hashing is IO-bound rather than CPU-bound) > faster than cat to /dev/null Should be "slightly faster than cat to /dev/null" …

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  24. comment
    Comment #30159532

    > being top 80% in two areas is much easier (and potentially more profitable)than being top 1% in one very narrow field. Did you mean to say "top 20%" instead of "top 80%"?

  25. comment
    Comment #29510288

    Primitive iron smelting was done with charcoal, I believe. Correct me if I'm wrong.