Status: Unconfirmed Owner: ---- Labels: OS-Mac Area-Misc Pri-2 Type-Bug New issue 20024 by jonas.nordlund: Sluggish scrolling when dragging by using touchpad or scroll bar on Mac http://code.google.com/p/chromium/issues/detail?id=20024
Chrome Version : 4.0.202.0 URLs (if applicable) : http://en.wikipedia.org/ (for example; any site with a layout beyond the very simplest) Behavior in Safari 3.x/4.x (if applicable): Very smooth scrolling Behavior in Firefox 3.x (if applicable): Very smooth scrolling Behavior in Chrome for Windows: Smooth scrolling What steps will reproduce the problem? 1. Visit a site like http://en.wikipedia.org/ och http://www.facebook.com/ 2. Scroll vertically (or probably horizontally, although this is untested by me) by using the scroll bar or touchpad. (note: please don't confuse this bug with the one requesting a smooth scrolling feature; this bug is not about using the mouse wheel or keys) What is the expected result? Page refreshing seemingly instantly as you scroll by not using the up/down arrow keys or mouse wheel, such as by using the scroll bar or touchpad with two fingers. What happens instead? Slow speed as the page redraws as you scroll, i.e. comparatevily high delays between each refresh. The result being that the page doesn't follow "with you" as you scroll, but rather falling sluggishly behind. Compare to e.g. Firefox or Safari performance. These browsers seem to use a much more pleasant "refresh rate" to me. Chrome seemingly hovering somewhere around 10-15 fps (just guessing here), while the compeition at 40+ fps when redrawing a scrolling page. While Google Chrome quickly *renders* pages, the performance of *scrolling* them on a Mac compared to other browsers is an entirely different story on my system. (MacBook Pro 15", Late 2008 revision (Rev. F), Intel Core 2 Duo 2.4 GHz, 2 GB RAM, Mac OS X 10.5.8) -- You received this message because you are listed in the owner or CC fields of this issue, or because you starred this issue. You may adjust your issue notification preferences at: http://code.google.com/hosting/settings --~--~---------~--~----~------------~-------~--~----~ Automated mail from issue updates at http://crbug.com/ Subscription options: http://groups.google.com/group/chromium-bugs -~----------~----~----~----~------~----~------~--~---
