1. Mobile and Desktop Memory Management
What did you see?
Mobile and Desktop Memory Management

2. Virtual Memory
When the programs do not all fit in RAM, pages of the program not currently being used are stored on disk
If the system needs memory for an active program, it may page out parts of other programs

3. Page Faults
When a program attempts to use a page that is not in RAM, a page fault interrupt occurs
The operating system will suspend the program while it copies the needed page into RAM
If there are lots of page faults, the program has little time to run and CPU utilization with drop

4. Execution Time vs. Program Size

5. Chart Explanation
The following chart shows the execution time for programs of different size
Multiple copies of the program were run at different sizes
All programs, regardless of size, executed exactly same number of instructions, the same CPU processing
Differences in time are caused by OS overhead managing the memory

6. Windows Memory Stress

7. Android Test
Running the experiment on Android phones produces varying results on different phones
Running the experiment on the Android emulator may take a very long time

8. Android Performance

9. Android Performance