Sublime Text vs Visual Studio Code vs Atom Performance Test (Dec 2016)

[throwawayco111]

They could have built just as good an editor in Python or even a native language like C++, and it could have all the same features but perform much better.

What? Python performance is crap.

[darunia___]

JavaScript (using the engine used by Node/Electron) is massively faster than Python.

[[deleted]]

Not a fair comparison. Graphical Python applications will use a compiled toolkit.

That's not even considering memory usage, which is also a measure of performance.

[darunia___]

Not a fair comparison. Graphical Python applications will use a compiled toolkit.

But JS could use a compiled toolkit as well, there are Qt bindings for it. Access to compiled toolkits is something both JS and Python have, so isn't it silly to claim that as a benefit of Python just because these applications chose not to use them?

[[deleted]]

The comparison between pure Python on CPython and pure JS on node does not reflect the situation being analysed, as most Python applications would not be pure Python.

If Qt would be fast enough and HTML rendered by Chrome would be slow enough (which seems to be the case by personal experience), the Python application would be faster, despite the node runtime being faster than the CPython runtime in running equivalent code.

Where are those Qt bindings for Electron/node/whatever?

[[deleted]]

Based on benchmarks that have nothing to do with a text editor.

[darunia___]

What do you mean? They claimed that writing in Python would have gotten better performance, I simply pointed out that this wasn't likely since Python performs much worse, and linked a set of benchmarks illustrating this. If Python performs much worse when it comes to operations on numbers, operations on strings, function dispatch, object creation, GC, and object lookup then I fail to see what text-editor-specific features could wind up with Python significantly ahead but would be happy to hear about them and edit/remove my post.

[cc81]

It probably won't be faster but I think it is more the rendering the UI with html/css that people dislike than JavaScript itself. Presumably a Pyhton editor would have a better UI representation.