I'm on Mac (Snow Leopard), and building 32-bit (Carbon, of course) because of other dependencies.
Back in Qt 4.7 (specifically, on August 14th, 2011), I had built the QtWebKit 2.2 branch from trunk in order to get some features I needed for my application. Today I got tired of dealing with the broken inspector and decided to update to 4.8.0. Unfortunately, the version of QtWebKit bundled with 4.8.0, as well as a fresh checkout of trunk, have severe performance regressions, especially with scrolling. I kept Qt 4.8.0 but switched back to my old build of QtWebKit from August 14th and the performance returned to normal. (I still had another regression regarding opacity, but that seems to be a Carbon-specific regression in Qt itself, not QtWebKit.) I'm not looking forward to spending my weekend bisecting this; is this a known issue? Does anyone have any pointers on what change(s) might be relevant? Thanks, /s/ Adam
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