We have a few mxml files of substantial size 900+ lines.
When viewing these in the compare editor its insanely slow - well over 45 seconds and gets exponentially worse the bigger the files. The same file using TortoiseSVN takes less than a second. Virtually all our developers using the eclipse plugin rather than a stand alone flash builder have this issue ranging from standard xp builds to vista OS. We all use springs STS build of eclipse v 2.3.2 (version 3.5.2 of eclipse)
Have we got something wrong which is causing this?
I'd like to confirm what workflow you are using. Are you doing a right click on the file-> compare with -> local history. and then choosing a file from recent history to check the diff?
Does this problem occur only on plugin or even on standalone?
I was able to reproduce this issue on my FB standalone. I filed a bug.