Improve performance for rendering large amounts of text

[lgeiger]

Ansi can be very slow for rendering large amounts of text to the point where nteract cannot keep up and crashes.

For me performance issues are appearing when executing anything larger than:

print("This is too large to render smoothly :( "*500000)

This seems to be caused by the Ansi component even without the linkify option. Improving the performance of escape-carriage also didn't help 😕

[rgbkrk]

Brought up earlier today in https://github.com/nteract/meeting-minutes/blob/master/2017/05-22.md

Perhaps there's some other memoization we can do.

[ssbarnea]

Is anyone working to address this? Did you endup using a different library due to performance issues? If so which?

[rgbkrk]

I've been a bit away from open source until now, so I apologize for taking this long to let you know -- no one is working on speeding up text rendering currently. It's almost always better to solve it "before" it gets to the rendering (by buffering in advance, memoizing it). What are you using this package with @ssbarnea?

[ssbarnea]

No reason to worry anymore as we switched to https://www.npmjs.com/package/react-ansi which is better maintained and does not have the same performance issues.

[rgbkrk]

Thanks!