Was this just a general bitch about how multi-threaded operating systems function or did you have a real question?
On 20 Jun 2010, at 23:06, BobG wrote: > I finally realized why I cant find a good overview of android > programming tecnique that doesnt assume that the student is a > proficient windows/event driven programmer. Android is a stack on top > of java, which is a stack on top of an operating system, and I betcha > most experienced java programmers have never really wondered what goes > on below the java interpreter. It isnt necessary. Just call the > function, and assume that there are lots of spare mips and megabytes > left on the pc. Us old embedded programmers are painfully aware of the > number of cycles to read a file and/or draw rectangles because weve > probably written every subroutine in a file system and a graphics > package at one time or another. My model is that after oncreate > returns to the operating system, every event that gets delivered to > the activity is sent by the operating system, and the activity gets a > quantum to run, however long that is (100ms?) and one really has no > idea how many ms will elapse until the activity gets to run again. > Horrible for real time stuff like embedded guys are used to. The huge > complex overhead of splitting a simple program that does input, > process, output and runs in a loop into two tasks makes no sense > because both of these tasks are being run by the operating system. > Just more overhead. There doesnt seem to be a way to generate a 50ms > timer event and run a program at a hi priority. Do any android gurus > have an embedded backfround also? I know my lack of 'windows' model > programming hinders my understanding, and I'd be grateful for a link > to some examples that might help. I have no prob generating a timer > interrupt that hits every 100usec on a 20mhz 8 bit microcontroller. > Hard to believe I cant run a program faster than every 100ms on a > 500mhz 32 bit arm. > > -- > You received this message because you are subscribed to the Google > Groups "Android Beginners" group. > > NEW! Try asking and tagging your question on Stack Overflow at > http://stackoverflow.com/questions/tagged/android > > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/android-beginners?hl=en -- You received this message because you are subscribed to the Google Groups "Android Beginners" group. NEW! Try asking and tagging your question on Stack Overflow at http://stackoverflow.com/questions/tagged/android To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en
