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cmuratori's profile
Casey Muratori
Casey Muratori
Casey Muratori
@cmuratori

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Casey Muratori

@cmuratori

I'm worried that the baby thinks people can't change.

Seattle
caseymuratori.com
Joined March 2009

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    1. Stéphane Cocquereaumont‏ @stephc_int13 Jun 7
      Replying to @cmuratori @Jonathan_Blow

      Do you have a baseline to compare it to something? Either a fast terminal on a different platform but similar hardware or doing the same render with the deprecated API?

      1 reply 0 retweets 0 likes
    2. Jonathan Blow‏ @Jonathan_Blow Jun 7
      Replying to @stephc_int13 @cmuratori

      I mean I can just open our Sokoban game console to fullscreen and pick a moderately smaller font and measure how many fps it gets (answer: lots).

      1 reply 0 retweets 9 likes
    3. Stéphane Cocquereaumont‏ @stephc_int13 Jun 7
      Replying to @Jonathan_Blow @cmuratori

      I don't think this is entirely realistic, even if it can serves to get an idea of the rendering load if correctly implemented with OpenGL.

      1 reply 0 retweets 0 likes
    4. Jonathan Blow‏ @Jonathan_Blow Jun 7
      Replying to @stephc_int13 @cmuratori

      Why not?

      1 reply 0 retweets 3 likes
    5. Stéphane Cocquereaumont‏ @stephc_int13 Jun 7
      Replying to @Jonathan_Blow @cmuratori

      Because a terminal emulator is not only a text renderer. I also think that the logic and I/O should be almost free on modern hardware, but it would not be an apple/apple comparison if we don't take the full context into account.

      1 reply 0 retweets 0 likes
    6. Dan Bechard‏ @dbechrd Jun 7
      Replying to @stephc_int13 @Jonathan_Blow @cmuratori

      Do you honestly think emulating a terminal is more expensive than simulating a 3D game? 🤔

      1 reply 0 retweets 5 likes
    7. Stéphane Cocquereaumont‏ @stephc_int13 Jun 7
      Replying to @dbechrd @Jonathan_Blow @cmuratori

      Absolutely not, I don't think the result of this benchmark is normal. But a benchmark is not very useful if we can't compare to a baseline, and I don't think rendering text is a totally fair baseline. My guess is that what we're seeing is not only a rendering issue.

      1 reply 0 retweets 0 likes
    8. Casey Muratori‏ @cmuratori Jun 7
      Replying to @stephc_int13 @dbechrd @Jonathan_Blow

      I would assume it is not a rendering issue, actually. It is almost certainly a parsing issue first, and a rendering issue second - ie., the rendering is probably slow, but the parsing of VT codes is almost certainly the bottleneck here.

      2 replies 0 retweets 9 likes
    9. Casey Muratori‏ @cmuratori Jun 7
      Replying to @cmuratori @stephc_int13 and

      But as for your original question, I'm not sure what you mean by "baseline". What do you want to see as a "baseline" for this? It has ~2500 cycles per input byte, ~53000 per output glyph at that speed, assume no threading and no GPU assist.

      2 replies 0 retweets 4 likes
    10. Casey Muratori‏ @cmuratori Jun 7
      Replying to @cmuratori @stephc_int13 and

      So they're like 100x off of what you might expect a rudimentary thing to do, at a minimum. Is that what you mean by baseline?

      1 reply 0 retweets 1 like
      Casey Muratori‏ @cmuratori Jun 7
      Replying to @cmuratori @stephc_int13 and

      It really depends, however, on whether they use GPU acceleration or not, as to whether memory bandwidth on the output side is a factor, so I couldn't say about that part. Not using GPU acceleration would be kind of insane these days, but so is 2fps, so, I don't know.

      12:17 PM - 7 Jun 2021
      • 1 Like
      • Ivan Braidi
      1 reply 0 retweets 1 like
        1. Stéphane Cocquereaumont‏ @stephc_int13 Jun 7
          Replying to @cmuratori @dbechrd @Jonathan_Blow

          When using cmd.exe it is not using the GPU. When launched from the most recent Microsoft Terminal, it uses the GPU the result is almost the same.

          0 replies 0 retweets 0 likes
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