6 ms·

> For all interactions, we shoot for the following targets on the hardware of our median user: > 8ms Scrolling, animations, and fine-grained interactions such

> For all interactions, we shoot for the following targets on the hardware of our median user: > 8ms Scrolling, animations, and fine-grained interactions such as typing or cursor movement. I don't believe that. Either they use expensive powerful hardware or they measure performance only on start with empty documents. Because even Sublime Text starts lagging after long use and typing several pages of text. There is no way HTML page can be faster than optimized native code. Especially with React (which adds even more overhead and which was never made for high performance) and these weird ideas: > a CSS-in-JS approach that automatically generates atomic selectors so as to keep our total number of selectors minimal.

fwip 9y ago
Sublime Text isn't necessarily "optimized native code."
- codedokode 9y ago
  It is faster than all other editors I've used, especially startup time and scrolling smoothness. So I think it is optimized.
- saagarjha 9y ago
  Sublime Text is written in C++. Not sure how much closer you can get to "optimized native code" than that.
  - jclulow 9y ago
    You can write some pretty heavyweight C++ if you're not careful.
  - com2kid 9y ago
    All the best, highest performance AAA games have been written in C++. So have all the slow, under-performing, crash prone, unoptimized AAA flops. C++ isn't a magic bullet that gives instant speed. Indeed a long running native app that isn't properly written, will fragment the heck out of memory and get slower and slower. (With 64bit address spaces, at least they don't crash now days!) The choice of algorithms and data structures is of utmost importance. Optimizing around one's run time is choice #2. C++ doesn't provide some magic hyper optimized environment. Heck C++ doesn't provide much of anything. You need to build a threading model and concurrency model that works, and performs well on different platforms. File I/O performance is different based on the file system in use, NTFS for example hates lots of small files, other file systems have less issues with that usage model. This goes on and on and on. With C++, every decision has to be made, and each one of those decisions can, if made incorrectly, lead to a poorly performing app.
    - pjmlp 9y ago
      A badly written C++ application will still be faster and consume less memory than anything written in JavaScript. C++ has a defined threading model and libraries since 2011.
      - com2kid 9y ago
        > A badly written C++ application will still be faster and consume less memory than anything written in JavaScript. JavaScript engines are written in C++. :-D
        cztomsik 9y ago
        Not for long... This could make rust rewrite feasible https://github.com/nbp/holyjit https://github.com/nbp/holyjit
        pjmlp 9y ago
        The engine, not the code they execute.
      - gr__or 9y ago
        To be charitable, I'm gonna interpret this as hyperbole. If you meant this as its written, it'd be an immensly ignorant statement. Almost by definition, there CAN always be a faster implementation in C++ but there are also more ways to shoot yourself in the foot (or as they saying with C++ goes, shoot your leg off).
        pjmlp 9y ago
        A programming language where this compiles and maps to alert(1), has nothing to say against C++. [][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]]((![]+[])[+!+[]]+(![]+[])[!+[]+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]+(!![]+[])[+[]]+(![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[!+[]+!+[]+[+[]]]+[+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[!+[]+!+[]+[+[]]])() -- http://www.jsfuck.com/ http://www.jsfuck.com/
ayyyyylmao 9y ago
webgl is used to render the text buffer react/html/css/js is used for extensions and probably menus, etc.

fwip 9y ago

Sublime Text isn't necessarily "optimized native code."

codedokode 9y ago
It is faster than all other editors I've used, especially startup time and scrolling smoothness. So I think it is optimized.
saagarjha 9y ago
Sublime Text is written in C++. Not sure how much closer you can get to "optimized native code" than that.
- jclulow 9y ago
  You can write some pretty heavyweight C++ if you're not careful.
- com2kid 9y ago
  All the best, highest performance AAA games have been written in C++. So have all the slow, under-performing, crash prone, unoptimized AAA flops. C++ isn't a magic bullet that gives instant speed. Indeed a long running native app that isn't properly written, will fragment the heck out of memory and get slower and slower. (With 64bit address spaces, at least they don't crash now days!) The choice of algorithms and data structures is of utmost importance. Optimizing around one's run time is choice #2. C++ doesn't provide some magic hyper optimized environment. Heck C++ doesn't provide much of anything. You need to build a threading model and concurrency model that works, and performs well on different platforms. File I/O performance is different based on the file system in use, NTFS for example hates lots of small files, other file systems have less issues with that usage model. This goes on and on and on. With C++, every decision has to be made, and each one of those decisions can, if made incorrectly, lead to a poorly performing app.
  - pjmlp 9y ago
    A badly written C++ application will still be faster and consume less memory than anything written in JavaScript. C++ has a defined threading model and libraries since 2011.
    - com2kid 9y ago
      > A badly written C++ application will still be faster and consume less memory than anything written in JavaScript. JavaScript engines are written in C++. :-D
      - cztomsik 9y ago
        Not for long... This could make rust rewrite feasible https://github.com/nbp/holyjit https://github.com/nbp/holyjit
      - pjmlp 9y ago
        The engine, not the code they execute.
    - gr__or 9y ago
      To be charitable, I'm gonna interpret this as hyperbole. If you meant this as its written, it'd be an immensly ignorant statement. Almost by definition, there CAN always be a faster implementation in C++ but there are also more ways to shoot yourself in the foot (or as they saying with C++ goes, shoot your leg off).
      - pjmlp 9y ago
        A programming language where this compiles and maps to alert(1), has nothing to say against C++. [][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]]((![]+[])[+!+[]]+(![]+[])[!+[]+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]+(!![]+[])[+[]]+(![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[!+[]+!+[]+[+[]]]+[+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[!+[]+!+[]+[+[]]])() -- http://www.jsfuck.com/ http://www.jsfuck.com/

ayyyyylmao 9y ago

webgl is used to render the text buffer react/html/css/js is used for extensions and probably menus, etc.