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pcwalton's profile
Patrick Walton
Patrick Walton
Patrick Walton
@pcwalton

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Patrick Walton

@pcwalton

Research engineer at Mozilla

San Francisco, CA
pcwalton.github.io
Joined November 2009

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    1. Patrick Walton‏ @pcwalton Jan 24
      • Report Tweet
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      Replying to @johnregehr

      Looks like you need a Dhrystone (Am I the first one to make this joke?)

      2 replies 0 retweets 18 likes
    2. Alexander Tarasikov‏ @astarasikov Jan 24
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      Replying to @pcwalton @johnregehr

      I thought about this but then decided it's too good for posting on Twitter for everyone

      1 reply 0 retweets 5 likes
    3. Rich Felker‏ @RichFelker Jan 24
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      Replying to @astarasikov @pcwalton @johnregehr

      Dhrystone is a really obfuscated version of void main(){}

      2 replies 0 retweets 4 likes
    4. John Regehr‏ @johnregehr Jan 24
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      Replying to @RichFelker @astarasikov @pcwalton

      years ago @ncooprider built a very nice whole-program optimizer for embedded software and it would take bad benchmarks that didn't mark their inputs as volatile and destroy them completely

      2 replies 0 retweets 7 likes
    5. Patrick Walton‏ @pcwalton Jan 24
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      Replying to @johnregehr @RichFelker and

      I really wish we could do that for JS benchmarks

      1 reply 0 retweets 4 likes
    6. Rich Felker‏ @RichFelker Jan 24
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      Replying to @pcwalton @johnregehr and

      I really wish the only JS benchmarks ppl looked at were peak-latency benchmarks and memory-usage benchmarks. Because that's about all that matters to real UX.

      1 reply 0 retweets 4 likes
    7. Patrick Walton‏ @pcwalton Jan 24
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      Replying to @RichFelker @johnregehr and

      It’s an uncomfortable truth. I turned off the JIT for a year and never noticed the difference.

      1 reply 0 retweets 7 likes
    8. John Regehr‏ @johnregehr Jan 24
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      Replying to @pcwalton @RichFelker and

      wow

      1 reply 0 retweets 1 like
    9. Patrick Walton‏ @pcwalton Jan 24
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      Replying to @johnregehr @RichFelker and

      To be fair that was before React…all the DOM diffing might stress JITs more nowadays.

      2 replies 0 retweets 5 likes
    10. Rich Felker‏ @RichFelker Jan 24
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      Replying to @pcwalton @johnregehr and

      So React is basically curses for dom? Eew. Fucking eew.

      2 replies 1 retweet 3 likes
      Patrick Walton‏ @pcwalton Jan 24
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      Replying to @RichFelker @johnregehr and

      Is that how curses works, BTW, by doing screen diffs? It would be hilarious if curses was "functional reactive programming before it was cool"

      9:09 PM - 24 Jan 2020
      • 2 Likes
      • Michael John Regehr
      2 replies 0 retweets 2 likes
        1. New conversation
        2. Rich Felker‏ @RichFelker Jan 24
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          Replying to @pcwalton @johnregehr and

          Yes. The whole idea of curses is that it keeps a local representation of current terminal contents and desired terminal contents, then diffs them and solves an optimization problem for getting from one to other with fewest bytes. Wasting mem & cpu. Because 300 baud modems.

          3 replies 1 retweet 14 likes
        3. John Regehr‏ @johnregehr Jan 24
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          Replying to @RichFelker @pcwalton and

          TIL

          0 replies 0 retweets 1 like
        4. End of conversation
        1. zendrawe‏ @zendrawe Jan 25
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          Replying to @pcwalton @RichFelker and

          But diffing things is a common programming technique. Think compression, version control - all predates curses. Hell, even MPEG is a glorified diffing.

          0 replies 0 retweets 0 likes
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