Did anyone attempt to use a Webview with its addJavascriptInterface() to do, say, some basic vector processing in Javascript by passing arrays back and forth? Is the interface's variable passing rich enough to make that work? (Surely it will still be very slow for now for lack of V8 on the G1.)
Thanks On May 22, 11:33 pm, blindfold <[email protected]> wrote: > Currently, computational Android programs run 5 to 10 times slower on > Android phones than on comparable Nokia phones, apparently mostly due > to the fact that Nokia phones feature a JIT (just-in-time) compiler > for Java bytecodes to automatically profile and speed up time-critical > sections, whereas Dalvik bytecodes are always only run through an > interpreter. In looking for means to accelerate Android programs, I > would greatly prefer a platform-independent JIT compiler over any > platform-dependent solutions such as the NDK/JNI where different > distribution packages must be generated for different target platforms > based on ARM, x86, MIPS, whatever: a maintenance, packaging and > distribution headache. > > Now with Google Chrome 2.0 for the PC incorporating V8, a JIT-like > fast Javascript compiler, with V8 already ported to > ARMhttp://code.google.com/apis/v8/build.html, and with Sergey Brin's > plans to make Chrome available under > Androidhttp://news.cnet.com/8301-1001_3-10031318-92.html, > can we expect a platform-independent interface for calling Javascript > functions from within Android apps? Counterintuitive as this may at > first seem since Javascript used to be slow and poorly defined in the > past, this may provide a mechanism to speed up time-critical Android > application sections in a platform-independent manner (from the > Android application programmer's perspective, that is). The math > benchmarks of the Sunspider Javascript benchmark suite show a speedup > of 5 to 10 times when comparing Google Chrome 2.0 to Firefox 3.010 on > the PC. Typically, math code looks syntactically very similar in Java > and Javascript, such that there is little effort involved in re-coding > one's time-critical sections in Javascript. > > So, may we expect this major and platform-independent speed-up option > for Android applications shortly? :-) > > Thanks! --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Discuss" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-discuss?hl=en -~----------~----~----~----~------~----~------~--~---
