Hi, For quite some time now I experience slow scrolling on some pages when using FireFox, now I took the time to find the culprit. The slow scrolling only manifests when maximizing FireFox' window (screen size is 1920x1280), and manifests in "after-scrolling" (scrolling although mouse already stopped). During scrolling, X doesn't respond to new input.
It seems with 2.15 there is a performance regression, causing some pages to scroll slow. On my system the following page scrolls slow: http://news.orf.at/stories/2081416/2081417/, especially if the small images on the top need to be repainted. Also During slow scrolling, intel_gpu_top reports a completly busy ring (0% idle), ring space at ~10% and the following load: Color clalculator: 99% Bypass FIFO: 99% Map filter: 97% Intermediate Z: 62% Windowizer: 55% Pixel Shader: 1% Setup engine: 1% My System is: - Fedora Core 15 (updated) - intel 2.15 & 2.16 (both show the slowdown, 2.14 was ok) - Intel 945GM - Core2Duo T7200 (2x2ghz, 4mb shared L2 cache) I pasted my Xorg.log to: http://pastebin.com/74NXbrTp Is there anything further I should try to track this problem down? Thank you in advance, Clemens _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
