We have huge application using Qt and doing tons of allocations, even starting it with 2.5.0 linked became huge pain, doing every action is very slow too. Just installing 2.4.1 makes things much faster. Looking at changelog I can't see what could have caused such slowdown. Possibly I could profile what takes so long if I'd have a spare time a bit later but looks like this update makes VLD practically unusable for our app.
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