On Sunday, April 06, 2014 06:24:29 AM Robert P. J. Day wrote: > (note: i'm starting a new thread for this since my original post > blaming firefox for system slowdown now seems inaccurate. the problem > appears to be more widespread.) > > the system: an asus g74s, quad-core i7 with 16G of RAM, so i'm > fairly confident that physical limitations aren't the problem. to > establish a baseline, i'm in gnome 3 with only a couple terminal > windows open, no browser. performance is snappy -- when i move the USB > mouse, the cursor moves appropriately, nice and crisp. and "top" shows > Xorg puttering along, using in the neighbourhood of 5-10%. all in all, > everything working just fine. oh, using the > 3.15.0-0.rc0.git9.1.fc21.x86_64 kernel as well. > > now i start a single instance of epiphany, and i have a single tab > open on a page of my web site wiki which contains nothing but text -- > that is, no gifs, no video, nothing like that. performance still seems > fine, but now i go to simply move the epiphany browser window and > response just plummets. simply dragging the browser window to a > slightly different location is painfully slow and jerky, and Xorg CPU > usage jumps to 50%. as soon as the move is over, Xorg CPU usage drops > back to normal. > > slightly different experiment -- just try to resize the browser > window by dragging a corner, again horribly slow and Xorg usage > briefly jumps to 88%. in fact, just moving the cursor *across* the > browser window causes it to slow horribly. and i tried this from a > throwaway guest account, same symptoms. (all of this matches what i > saw with firefox, which is why i switched browsers, but i see exactly > the same problems.) > > and trying to watch a youtube video is practically futile. i opened > up a second epiphany tab and popped over to > http://www.youtube.com/watch?v=0bXSeheZLq8. interestingly, while audio > seems fine, i'm lucky to get one or two frames per second, the video > is that erratic. and while the video is playing, Xorg is up around 90% > CPU usage and keyboard response while typing this has a massive time > lag. > > this system has an nvidia chipset, and here's the relevant > nouveau-related "lsmod" output: > > $ lsmod | grep nouveau > nouveau 1178761 3 > mxm_wmi 12865 1 nouveau > i2c_algo_bit 13257 1 nouveau > drm_kms_helper 50413 1 nouveau > ttm 85373 1 nouveau > drm 288814 5 ttm,drm_kms_helper,nouveau > i2c_core 38734 6 > drm,i2c_i801,drm_kms_helper,i2c_algo_bit,nouveau,videodev > wmi 18804 3 mxm_wmi,nouveau,asus_wmi > video 19456 2 nouveau,asus_wmi > $ > > i have to think this is something related to nouveau since nothing > else seems to explain it. is there some kind of gnome setting i can > play with to see if that helps? i'm open to suggestions. > > rday Did you ever try the nodebug kernel as was suggested in your previous post? I have a computer with similar specs and it runs sluggish with the default debug rawhide kernel. I'd suggest trying this one if you have not already: https://fedoraproject.org/wiki/RawhideKernelNodebug Cheers, Matthew Bunt -- test mailing list test@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe: https://admin.fedoraproject.org/mailman/listinfo/test
