Am Mittwoch, den 25.02.2009, 19:05 +0100 schrieb Florian Hackenberger: > On Monday 23 February 2009 12:08:10 Michael 'Mickey' Lauer wrote: > > Am Montag, den 23.02.2009, 09:32 +0100 schrieb Florian Hackenberger: > > > I noticed that suspending / resuming on 2008.12 is quite fast compared > > > to SHR. The difference which is most noticeable is that SHR switches to > > > a virtual terminal before and right after suspending, as opposed to > > > 2008.12 which resumes right into X. > > Chances are they just cover up by turning backlight off prior to doing > > real suspend and then wait until resume has happened before turning it > > on again. We're not doing this yet, since we had our share with > > suspend/resume problems in the past and only will do that once it proves > > 100% solid. > > I don't think that they simply disable the backlight. Resuming from SHR > unstable takes about 5-6 seconds (no incoming call), while 2008.12 resumes > under 3 seconds. While this is not a scientific measurement, 2008.12 surely > is a lot faster. Any other ideas what they do differently?
No idea, sorry. I have never seen 2008.12. It's definitely not a problem in the base system, since FSO ms5.1 resolves in 1 second (admittedly, with Qi, with U-Boot it might be 2 seconds). > > > > Is there a way to replicate this > > > behaviour on SHR? I suspect that we could save at least a second > of > > > resume time, because printing and scrolling a few hundred lines of > > > kernel log in addition to the mode switches takes a bit of time. > > IIRC Garmin had a patch in their Navi sources that removes switching > the > > VT on suspend/resume, which gave a) a better user experience and b) > a > > small speedup. We should pick that up IMO. > > It should be easier to copy from 2008.12 shouldn't it? No, 2008.12 certainly has no kernel patches like that. :M: _______________________________________________ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community