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[Bug 239211] Xorg consumes up to 100% CPU-time when scrolling on websites with large images
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Tue, 30 Jan 2007 15:42:34 -0700 (MST)
  • Message-id: <20070130224234.8706F25C887@xxxxxxxxxxxxxxxxxxxxxx>
https://bugzilla.novell.com/show_bug.cgi?id=239211





------- Comment #17 from eich@xxxxxxxxxx 2007-01-30 15:42 MST -------
Normally you want offscreen pixmaps as they can be displayed much faster if
kept in offscreen fraembuffer cache. These web pages seem to hit a condition in
which offscreen pixmaps get retired too often probably because they have an
awkward size and are thus very wasteful in memory consumption.
Still I'm a little surpised as copying data into the framebuffer should be
sufficiently fast - especially on AGP. That's why I was asking of any of the
AGP options made a difference.
We hope that we can replace XAA with EXA one day. EXA is a lot better in
framebuffer utilization. Still, with flashing banners you still need to copy
the data to the framebuffer at some point.


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