[FLEX-34247] Performance with TextArea using TLF

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Apache Flex 4.12.0
• Component/s: Spark: TextArea
• Labels: regression
• Environment: Win 7 64 Bit, FP 13
• Assignee: Alex Harui
• Reporter: Benjamin Ludwig
• Created: 23/Apr/14 11:49
• Updated: 22/May/14 03:58
• Resolved: 22/May/14 03:58

Description

I run into performance issues with TextArea with Apache Flex 4.12.
After pasting a text of approx. 400000 chars into TextArea, it freezes for some time but becomes responsive again. Then I noticed the follwing:

In Flex 4.6: I can enter chars into TextArea at any speed without any problems.
In 4.12: the FlashPlayer freezes on each char entered for some time, rendering TextArea for long texts unsable.

I know there is much effort in TLF, but this feels like a downgrade, because handling huge texts in a very fast way was my reason to choose TLF, but this was about 2 years ago.

Do I now have to stay on tlf 1.0 for handling huge texts? Would be sad

regards
benny