There are are a lot of dependencies hanging off of http://bugzil.la/fatfennec .. are there any low hanging fruit?
Aaron Train Sr. QE Engineer Mozilla Corporation https://quality.mozilla.org > On Mar 29, 2015, at 2:08 PM, Richard Newman <[email protected]> wrote: > > Firefox 14, June 2012: 17MB. > Firefox 21, May 2013: 23MB. > Firefox 26, December 2013: 25MB. > Firefox 33, November 2014: 34MB. > Firefox 36, February 2015: 36MB. > Firefox 39 Nightly, today: 39MB. > > > Our current Gingerbread split APK saves 3MB on this. In other words, the > gains of months of build and releng work was wiped out in one month of > routine development. > > I think we need to get a handle on this. > > We are 80% of the way towards the largest possible APK (50MB), and we're > already large enough that Fennec is too big to install on a Shitphone® that I > bought off Amazon last year. > > We're growing about 10MB per year, so by March 2016 we will hit that hard > limit. > > omni.ja is about 9MB. libxul is now 16MB. NSS is about 800KB. classes.dex is > about 5MB. The rest is assets; about 6MB on disk, most of which is images, > layout and preferences XML, and color definitions. > > > Introducing more APK splits — which, looking at these numbers, seems an > inevitability — is likely to save us no more than 3MB on each screen density. > That implies that we need to aggressively pursue additional solutions. > > More aggressive ProGuarding might save us up to a meg. I don't see a bug on > file for this. > Bug 1115004 (fine-grained Google Play Services libs) might help, but IIRC we > already ProGuard these. > Continuing to chop away at omni.ja might save us another meg. (See Bug > 1044079). > We ought to look at build flags that turn off features in libxul and libnss > that we don't use on Android. (Bug 1115000, Bug 611781, maybe others.) > At some point I'll disable reftests on Gingerbread and remove 5MB of fonts > from constrained builds. That doesn't help 95% of our users, though; I think > we're unwilling to rely on system fonts on all platforms. > Eventually we should move on Bug 945123 to download locales, saving us about > 60KB per locale (which I think is over 3MB now!). > > I'd be very happy to hear more ideas about how we can start to make Fennec > smaller, rather than growing significantly larger in each release. > > I'll also take this opportunity to remind y'all to think carefully about > space usage — both in our APK and on disk — as you build out features. We > cannot afford unbounded growth. Consider removing features if they don't see > significant use. This is a battle that will be won or lost on aggregate, not > on individual heroics. > > Thanks. > _______________________________________________ > mobile-firefox-dev mailing list > [email protected] > https://mail.mozilla.org/listinfo/mobile-firefox-dev
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