Viewing profile — alnsn
alnsn
HN member- Joined
- Wed, Jun 18, 2014, 10:09 AM UTC
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- 17
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- 17 items
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About alnsn
Recent public activity
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Comment #46554937
Related: Why there are holes in bicycle rims: https://youtu.be/yppBwvPciBo?t=8m7s
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Comment #43193318
Related: https://toccata.gitlabpages.inria.fr/toccata/gallery/divisio...
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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…
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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…
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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(…
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Comment #10260468
This is going to be interesting. Rust on top of rumprun bare-metal unikernel https://twitter.com/gandro23/status/645734117699624960
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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 …
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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…
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Comment #9984305
You can start from here http://lambda-the-ultimate.org/node/3851#comment-57805 or read the whole thread.
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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,…
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Comment #9508056
I once spotted a plane going circles over North London. https://mobile.twitter.com/nasonov/status/484027620993273857...
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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 …
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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…
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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…
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Comment #9052231
I use lengthof for lengths of string literals.
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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…