Thanks. This seems like a hit!
On Oct 21, 3:38 pm, tauntz <[EMAIL PROTECTED]> wrote:
> 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".
>
> Seehttp://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- Hide quoted text -
>
> - Show quoted text -
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