Ah, there's something going on here which is sort of my fault!
See this code: <http://mxr.mozilla.org/mozilla-central/source/gfx/thebes/gfxTextRunWordCache.cpp#747>
IINM, if there is a single numeric character in the textarea, it causes us to not cache the textrun when first the text, for example... My tests show that adding a digit to a textarea makes things noticeably slower in it :(
Ah, there's something going on here which is sort of my fault!
See this code: <http:// mxr.mozilla. org/mozilla- central/ source/ gfx/thebes/ gfxTextRunWordC ache.cpp# 747>
IINM, if there is a single numeric character in the textarea, it causes us to not cache the textrun when first the text, for example... My tests show that adding a digit to a textarea makes things noticeably slower in it :(