Low performance of changeset comment field

[tordans]

For the changeset comment field, I still have the issue from #6054

Its really bad when I type my commit message. I type and nothing happens and then the text appears all at once.

I took some of those Google Chrome performance screenshots. But I don't really know how to read them, so I don't know what parts are useful.

Do I read it right, that every key press triggers some big re-rendering action?

[bhousel]

Yes thanks for ticketing - I know about this and tried addressing it in ae06e28
But realized then that it didn't completely fix the issue.

This is why I'm pushing on the d3 upgrade this week in #6245 - to eliminate that as one potential source that might trigger the style recalculation.

[bhousel]

Also worth mentioning - if you are using the profiler, you should uncheck the "screenshots" feature, because that will slow things down even more and possibly mask the actual source of the slowness you're investigating.

[tordans]

I can confirm, the changeset comments field feels snappy again.

For comparison:
(From "click on save-button to click on commit-button")