What is the difference between ThisTime & TotalTime? why some times both values are equal, some times different?

Issue

We can able to measure the launching time of any app using "adb shell am start -w -n yourpackagename/.activityname" (Wait for launch to complete). This adb shell command will print TotalTime & ThisTime.

But I have following questions?

• What is the difference between TotalTime & ThisTime?
• What is the right metric to measure the performance ? ThisTime or TotalTime ?
• Why sometimes both ThisTime & TotalTime values are equal? why sometimes both are different ?

Example:

adb shell am start -W -n com.android.settings/.ApplicationSettings
ThisTime: 1554
TotalTime: 42815

Solution

Please, look at the answer of this question

"thisTime": just current activity launched time

"totalTime":the activity you started may be on the bottom of activity stack. So it refers to the total time from activity searching to current activity launched.

Answered By - Michael Spitsin