That is exciting! Have you posted any code or advice/instruction on how one could repeat what you did with Clojure on the Android phone?
Rob On Feb 6, 12:29 pm, "Remco van 't Veer" <rwvtv...@gmail.com> wrote: > Got startup time down to 5 seconds by completely eliminating the use > of lispreader and putting of loading the xml, set and zip namespaces. > There's no clear bottlenecks left to fix. > > On Fri, Feb 6, 2009 at 1:06 AM, Remco van 't Veer <rwvtv...@gmail.com> wrote: > > > I've managed to get to startup time down from 12 seconds to 7 on the > > emulator and hope get it below 4 seconds tomorrow. A lot of time is > > spend in LispReader when the core constants are initialized. I've > > altered the compiler to emit type specific code for the basic cases, > > thus bypassing LispReader. Need to learn more about GeneratorAdapter, > > and need sleep, before I can speedup the loading of, for instance, seq > > contants. > > > My changes are available at github;http://github.com/remvee/clojure > > > Remco > > > On Wed, Feb 4, 2009 at 5:55 PM, Remco van 't Veer <rwvtv...@gmail.com> > > wrote: > >> Having a lisp to do android app development is definately worth some > >> efford. > >> Kawa already has some android support in svn trunk but it doesn't seem in a > >> usable state; my experiments break because a lot of expressions do not seem > >> to compile AOT. The parts that do compile are very fast on the other hand. > > >> But if it comes down to app development I would of course prefer clojure > >> over kawa's schema and scheme over java.. > > >> I hope to do some tracing to find out what slowing down the startup later > >> this week and will keep the list in formed. If anybody has any suggestions > >> please yes pretty please. > > >> Remco > > >> On Feb 4, 2009 3:59 PM, "igorrumiha" <igorrum...@gmail.com> wrote: > > >> On Feb 4, 10:12 am, "Remco van 't Veer" <rwvtv...@gmail.com> wrote: > > >> Caching Reflector.getMethods,... > > >> I would also be interested in running Clojure on the Android. I tried > >> running a "Hello world" application on the emulator but the startup > >> time od 15 seconds put me off. There is definitely room for > >> improvement. I don't have much experience in Java (zero would be the > >> best description) so I don't really know where to start with > >> profiling. > > >> I've run the application through the Instrumentation mechanism and the > >> trace shows me that much of the time is spent in a huge amount of > >> calls to some character compare methods (something like 200000 calls) > >> (I don't have the trace with me right now so I don't have the exact > >> numbers and I don't know the exact method name). > > >> I find this curious when I know that all code is compiled ahead of > >> time. When I get the chance I will recreate that call graph an upload > >> it to the files section. > > >> -- > >> IgorR --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~----------~----~----~----~------~----~------~--~---
