Hi, Running my normal mix of KDE applications (kmail, konqueror,kopete) I get Top causes for wakeups: 31.6% ( 85.1) <interrupt> : nvidia 24.2% ( 65.1) kopete : schedule_timeout (process_timeout) 7.9% ( 21.3) <interrupt> : uhci_hcd:usb1, uhci_hcd:usb2, eth0 7.4% ( 20.0) kicker : schedule_timeout (process_timeout) 6.2% ( 16.8) X : do_setitimer (it_real_fn) 5.1% ( 13.6) gkrellm : schedule_timeout (process_timeout) 4.2% ( 11.3) <interrupt> : libata yes, ignore the nvidia one - Thats the binary driver.... kopete though is a problem. Some searching brought me to this ubuntu page https://bugs.launchpad.net/ubuntu/+source/kopete/+bug/127233 which says the problem is with "smooth scrolling" ... The fix, adding SmoothScrolling=false to my private /home/jonesc/.kde/share/config/kopeterc under [ContactList] does indeed fix thigs, dropping the interupts down to a few per sec. Chris On Thursday 9 August 2007 5:06:58 pm Bill Nottingham wrote: > Would you like your laptop battery to last longer? Would you like your > servers to use less electricity? We certainly would. So we're investigating > and fixing Fedora to use less juice. > > One of the biggest power problems is apps that wake up the CPU > unnecessarily. With the tickless kernel for x86 (and soon x86_64), > every time this happens it's a chance for power savings lost. > > HOW YOU CAN HELP > ---------------- > > We'd like to get as many reports of misbehaving apps as possible. > > 1) Install the 'powertop' package > > 2) Run it in a terminal window on a reasonably idle system with your > normal combination of apps. (If you run it when you're actively > compiling a kernel, watching a movie, or doing other CPU-intensive > things, the results aren't as useful.) > > 3) Note the results. If you'd like to capture them for safe-keeping > later, you can use the (Fedora-specific) '-d' option to dump them > to stdout, rather than pasting from the running app. > > 4) Report the results. You can add reports here, on #fedora-devel, > or to the upstream powertop community at power@xxxxxxxxxxx or > #powertop on irc.oftc.net. > > *** Please use a service such as http://pastebin.ca/ rather than > pasting powertop reports directly to an IRC channel. *** > > If you've got a specific app you know is misbehaving, please > file a bug with the details, and set it to block the 'wakeup' > bug in Fedora bugzilla. (bug number 204948.) > > Thanks for your assistance and help. > > Bill -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
