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alnsn

HN member
Joined
Wed, Jun 18, 2014, 10:09 AM UTC
HN karma
17
Public activity
17 items

About alnsn

[ my public key: https://keybase.io/alnsn; my proof: https://keybase.io/alnsn/sigs/WofgAIgnyTwitw2Hd49I1sBdXTHzXQHdlwqdnEl5rRY ]

Recent public activity

  1. comment
    Comment #46554937

    Related: Why there are holes in bicycle rims: https://youtu.be/yppBwvPciBo?t=8m7s

  2. comment
    Comment #43193318

    Related: https://toccata.gitlabpages.inria.fr/toccata/gallery/divisio...

  3. comment
    Comment #18882546

    Space optimal isn’t necessarily the fastest. Note that PostgreSQL code uses 2-graph instead of a more compact 3-graph version. The latter is noticeably more compact: 1.25 vs 2.1 fa…

  4. comment
    Comment #18882481

    It’s down to a quality of implementation. I can give you some hints on improving it if you’re interested. A tiny JIT code generator inside cdb would definitely bring performance on…

  5. comment
    Comment #18880160

    Not sure that scares you, code generation or a choice of scripting language? If you want to avoid a code generation, you can generate a .cdb (constant database) file with the cdbw(…

  6. comment
    Comment #10260468

    This is going to be interesting. Rust on top of rumprun bare-metal unikernel https://twitter.com/gandro23/status/645734117699624960

  7. comment
    Comment #10181887

    > Many other free software projects, including FreeBSD, NetBSD, and OpenWrt, are moving in the same direction. I might be wrong (I'm away from my NetBSD boxes) but build.sh script …

  8. comment
    Comment #10177333

    I spent about an hour looking at the tool. They say that only very few instructions aren't supported (and thus ignored by the tool) but a very popular imul instruction can be ignor…

  9. comment
    Comment #9984305

    You can start from here http://lambda-the-ultimate.org/node/3851#comment-57805 or read the whole thread.

  10. comment
    Comment #9519613

    This one? #include I used some bits from it to help me in building my own log approximation but I didn't have time to dig into it. I ended up doing Chebyshev approximation over [1,…

  11. comment
    Comment #9508056

    I once spotted a plane going circles over North London. https://mobile.twitter.com/nasonov/status/484027620993273857...

  12. comment
    Comment #9474243

    Indeed, it has been discussed many times. But I don't remember any discussion on attribution rights. If GS replaced GPL text with their own header they presumably deleted names of …

  13. comment
    Comment #9455439

    It depends on how much effort you put in making sure your parser is robust. I ran AFL tests for several days trying to find bugs in Lua parser but AFL kept discovering a way to loa…

  14. comment
    Comment #9207203

    Why [0, 1] interval is so popular in random number generators? It's one of the worst intervals possible imo because it includes subnormal numbers. The interval [1, 2] is much nicer…

  15. comment
    Comment #9052231

    I use lengthof for lengths of string literals.

  16. comment
  17. comment
    Comment #7909288

    Hi Luke, Take a look at bpfjit in NetBSD. It uses bsd licensed sljit library to generate code for multiple platforms. The library has some slight overhead over hand-written assembl…