Should have mentioned, there is a good explanation of the design methodologies from an early talk on Google IO (by the creator, who also has quite a few interesting things to say from a systems perspective). You can find it on youtube, google "dalvik" and it will probably be the first thing popping up.
Kris On Thu, Sep 15, 2011 at 2:11 AM, Kristopher Micinski <krismicin...@gmail.com> wrote: > On Wed, Sep 14, 2011 at 9:59 PM, Pratik Prajapati > <pratik.prajap...@gmail.com> wrote: >> Dear All, >> >> There are a lot of classes in my (big) APK which are used no where(some test >> code is part of the APK with the actual service). Will dalvik VM keep these >> classes in memory at runtime? ( many classes are not used to create any >> object out of them). >> >> As per my understanding, dalvik creates a single .dex file by combining all >> the .class in the apk. Does dalvik breaks this .dex file while running its >> bytecode and use the minimum code in memory? >> > > You can read about dalvik, it's very interesting. There is a good > explanation on the design methodology. From my understanding, the > idea is that you have a zygote, that can fork and already share that > base vm implementation in memory, and have your code mmap()'d in > memory to execute. I wouldn't worry about having a big apk too much. > I think (this could be a complete lie) that the way to handle this > sort of thing is to punt it down to the systems level, which can > handle which pieces of your code (mmap()'d) in have to stick around, > simply as if you were reading a huge file using mapped memory (i.e., > linux already has good support for this, it's not just a dalvik > problem). > > Kris > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
