14:09:15 #startmeeting PowerManagement -- http://fedoraproject.org/wiki/SIGs/PowerManagement 14:09:15 Meeting started Wed May 25 14:09:15 2011 UTC. The chair is jskarvad. Information about MeetBot at http://wiki.debian.org/MeetBot. 14:09:15 Useful Commands: #action #agreed #halp #info #idea #link #topic. 14:09:34 hi 14:09:46 * jsmith won't be talking much today -- he is busy with FUDCon Panamá 14:10:16 jsmith: hi, enjoy the FUDCon 14:10:42 Thanks jskarvad 14:11:00 For what it's worth, the updated power management in Fedora 15 seems to be getting some good press coverage 14:11:16 thats great 14:12:21 I am trying to make noise about it everywhere is possible 14:13:37 news about the powertop 14:14:04 currently we have 1.97 aka 2.0 beta 1 in f15 14:14:32 recently comes out 1.98, aka 2.0 beta 2, it will get into f15 soon 14:14:52 the stable 2.0 is planned in about 2 weeks or more 14:16:42 it seems to be a huge improvement in comparison to 1.97, so I will have to rewrite the F15 guides 14:16:49 but no problem 14:17:22 I am a bit delayed with the F15 PM guide update 14:19:08 currently I have about one half of guide updated 14:20:35 next update: I am continuing with the F14/F15 power consumption comparisons 14:20:58 some links were added on the PM SIG wiki and jvcelak will blog about it soon 14:22:39 currently I am getting about 1 W more in average power consumption on F15 and according to repetitive runs of benchmarks it doesn't seem as measurement error 14:23:56 It is not too much difference, but I am going to investigate/bisect this issue 14:26:07 next info: vpodzime added to PM wiki his measurements of wifi transmission speed vs power consumpiton 14:29:27 next: there is problem with tuned restart / profile switching in F15 14:29:53 bz 690177 14:31:40 it seems the problem is in nested systemctl calls 14:32:41 I am not sure if systemd is reentrant but it doesn't seems so (at least when working with sysv scripts) 14:35:47 current workaround for this bug is to remove the cpuspeed package (yum remove cpuspeed) that removes the nested systemctl call 14:38:39 in case the systemd is not reentrant, the ktune logic needs to be redesigned 14:39:34 that's all news 14:41:31 any comments, questions, ideas regarding the PM? 14:44:04 3 14:44:32 2 14:45:06 1 14:45:22 thanks 14:45:26 #endmeeting