I'm not sure that I understand your question correctly but if you want to measure a time interval in "real time" (eg in ms) then go for android.os.SystemClock.uptimeMillis() or android.os.SystemClock.elapsedRealtime() not System.currentTimeMillis()
android.os.SystemClock.uptimeMillis() - milliseconds since the system was booted. The time is not incremented while the CPU sleeps. android.os.SystemClock.elapsedRealtime() - milliseconds since the system was booted including time spent in sleep state. You should not rely on System.currentTimeMillis(). From the documentation "The wall clock can be set by the user or the phone network (see setCurrentTimeMillis(long)), so the time may jump backwards or forwards unpredictably". See http://code.google.com/android/reference/android/os/SystemClock.html for more info. If you want to measure how long a process is running then go for android.os.Process.getElapsedCpuTime() - "Returns elapsed milliseconds of the time this process has run." If you want to measure how long a Thread has been running, then go for android.os.SystemClock.currentThreadTimeMillis() - "Returns milliseconds running in the current thread." (I haven't tried the last two myself) Tauno On Mon, Oct 20, 2008 at 3:53 PM, Andy Quan <[EMAIL PROTECTED]> wrote: > > Hi all, > Anybody knows how to measure time interval for certain process rather > than CPU elapsed time? > > I have noticed there is a class named "android.os.SystemClock", but > according to its description, it is for CPU timing. And what if I want > to measure CPU cost of applications like MediaPlayer? > > I'd appreciate if there is any comment > > Thanks, > Andy > > > > --~--~---------~--~----~------------~-------~--~----~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
