Preliminary Results For On-Demand Binding Attribute Removal

Test Case

• Create a visual web project.
• On Page1.jsp, create 18 table components.
• Create 20 copies of Page1.jsp.
• Close all editors and restart the IDE.
• Open 3 pages, switch to the Java view, switch back to designer view, and close the editors.

Results

• Runtime Performance
  • No significant performance gain on page open or tab switching
  • Page copy action runtime decreased from ~3500ms to ~250ms after fix

• Memory Consumption - ~10% improvement
  • Before Fix - After opening/closing 3 pages, memory meter at 53MB
  • After Fix - After opening/closing 3 pages, memory meter at 48MB

• File Size
  • Java file size reduced from 40kB to 7kB
  • Jsp file size reduced from 30kB to 22kB

Additional Stress Test

• Steps
  • Create a project
  • In the page drop a table and copy and duplicate it to 20 tables
  • Copy the page and duplicate it to 128 pages.

Results

• Results With binding
  • Extremely slow to copy and create all the pages (more than 20 minutes)
  • Memory in the memory meter reached 512 MB and OME after copying about 95 pages
  • Copy all 128 pages after restarting IDE
  • Final project size 10.2 MB
  • Restart IDE and Open project and 10 pages (switch to Java) - Memory 120/190 MB

• Result With out binding
  • Reasonably faster to copy and create all the 128 pages (more than 5-7 minutes)
  • Final Memory in the memory meter (after GC) 165/340 MB
  • Final project size 1.9 MB
  • Restart IDE and Open project and 10 pages (switch to Java) - Memory 75/140 MB