Yeah I think it will be good to investigate again. Specially if we have reports about app startup being very slow on iPad.
I think the iPad 2 was actually also mentioned in the Github issue that I linked to. Someone said that the difference between iPad Air and iPad 2 was like 3 vs 8 seconds. What I find interesting is that all signs point to dynamic frameworks being the culprit here. One thing we could do is embed a few frameworks statically as a test and see if that improves things. Another good hint from that Github issue was that you can hit Suspend in the debugger when the splash screen is shown. That should give some idea what the app is actually doing at that time. I don't want to give up too soon. And I wonder if any of this is related to the crash that is being reported that takes down the whole iPad. Or SpringBoard (unclear from bug reports - since the black screen with white apple shows in both cases) S. On Tue, Oct 27, 2015 at 9:23 AM, Steph Leroux <[email protected]> wrote: > I've seen this thread about slow DYLD times in the past and used it to > debug our startup slowness but wasn't able to see any significant delays in > the linking. I think it's worth doing some profiling of the app, checking > not just the dyld load times but also our app code where things are slow. > Things might have regressed since the last time I measured. > > On Tue, Oct 27, 2015 at 9:17 AM, Darrin Henein <[email protected]> > wrote: > >> I see similarly slow times on my iPad mini 3 with Aurora 1113 (though >> none of them have really ever been fast to boot on that device). >> >> >> On Oct 27, 2015, at 4:27 AM, Panos Astithas <[email protected]> wrote: >> >> I'm not sure whether Fennec Aurora counts as a release build, but on my >> old iPad 2 Safari takes 3 seconds to launch to its new tab page, while >> Fennec Aurora 1113 takes 20 seconds to display the URL bar and another 5 >> seconds to display the new tab page. >> >> On Tue, Oct 27, 2015 at 5:56 AM, Stefan Arentz <[email protected]> >> wrote: >> >>> Yes. Specially cold start. >>> >>> Here are some good hints: >>> >>> >>> https://github.com/stepanhruda/dyld-image-loading-performance/blob/master/README.md >>> >>> On Monday, 26 October 2015, Richard Newman <[email protected]> wrote: >>> >>>> I'll step back a moment and say: do we still think our app startup is >>>> slow? Do we have some measurements on any devices with a release build? >>>> (That question is mainly for Canadians…) >>>> >>>> On Monday, October 26, 2015, Stefan Arentz <[email protected]> wrote: >>>> >>>>> >>>>> http://mjtsai.com/blog/2015/10/26/dynamic-frameworks-and-app-launch-times/ >>>>> >>>>> Should we start using static libraries? >>>>> >>>> >>> _______________________________________________ >>> mobile-firefox-dev mailing list >>> [email protected] >>> https://mail.mozilla.org/listinfo/mobile-firefox-dev >>> >>> >> _______________________________________________ >> mobile-firefox-dev mailing list >> [email protected] >> https://mail.mozilla.org/listinfo/mobile-firefox-dev >> >> >> >> _______________________________________________ >> mobile-firefox-dev mailing list >> [email protected] >> https://mail.mozilla.org/listinfo/mobile-firefox-dev >> >> >
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