Created
February 4, 2011 01:50
-
-
Save shiftkey/810610 to your computer and use it in GitHub Desktop.
Investigating memory usage of a trivial Panorama-based WP7 application.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
// Scenario: | |
// Start with default WP7 Panorama application, two tabs each with listbox | |
// Added child page with panorama control, two tabs each with listbox | |
// Two ViewModels (Main and Child), each has a list of 270+ items | |
// No relationship between the ViewModels. Lazy-loaded data in-memory | |
Main - OnNavigatedTo - ApplicationCurrentMemoryUsage: 8036352 | |
Main - OnNavigatedTo - ApplicationPeakMemoryUsage: 8048640 | |
Main - Loaded - ApplicationCurrentMemoryUsage: 39870464 | |
Main - Loaded - ApplicationPeakMemoryUsage: 39899136 | |
// scroll listbox, select an item to navigate to child page | |
Main - OnNavigatedFrom - ApplicationCurrentMemoryUsage: 52854784 // second view created - increase by 13MB | |
Main - OnNavigatedFrom - ApplicationPeakMemoryUsage: 52936704 | |
Child - OnNavigatedTo - ApplicationCurrentMemoryUsage: 52854784 | |
Child - OnNavigatedTo - ApplicationPeakMemoryUsage: 52936704 | |
Child - Loaded - ApplicationCurrentMemoryUsage: 64663552 // second viewmodel created - increase by 12MB | |
Child - Loaded - ApplicationPeakMemoryUsage: 64712704 | |
// scroll listbox, press Back on device to return to Main View | |
Child - OnNavigatedFrom - ApplicationCurrentMemoryUsage: 41127936 // framework has suspended main view and freed additional space | |
Child - OnNavigatedFrom - ApplicationPeakMemoryUsage: 70279168 | |
Main - OnNavigatedTo - ApplicationCurrentMemoryUsage: 41127936 | |
Main - OnNavigatedTo - ApplicationPeakMemoryUsage: 70279168 | |
Child - Unloaded - ApplicationCurrentMemoryUsage: 41127936 | |
Child - Unloaded - ApplicationPeakMemoryUsage: 70279168 | |
Main - Loaded - ApplicationCurrentMemoryUsage: 77934592 // expect both views to be in-memory at this point, but footprint approx 13MB larger! | |
Main - Loaded - ApplicationPeakMemoryUsage: 77934592 |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment