Snappy GUI response
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Maybe this comes a few years too late, but I didn't really see things change in good..
In my opinion, the problem in not really in the X server, but in the way the toolkits (GTK+, QT) handle the redraws.
Someone proposed the suggestion of using a backing store to speen up the application display. But this isn't a solution if the window content has changed. A window resize or drawing a menu will still blow up things.
But someone should try a simple benchmark: make a window with two or three tabs, add some GUI elements in each tab (buttons, text, listviews) and cycle through them a million times. Port it to Win32/GTK+, Win32/MFC, Win32/API, .NET, QT, GTK+, whatsoever.
Of course: Win32/* doesnt manage the layout like GTK does; but this could still be a way to measure performance and look for things to optimize. And.. the Windows programs could be run using Wine. Yes, it will slow down things a bit, but it could be a way to measure the influence of the X Server.
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