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Performance Issues with Flash receiving requests from Cache

Posted

We are developing a Flash game. Since we upgraded from Firefox 3.5 to 3.6 we have noticed a strange performance issue. Our game uses http to make requests for assets that are loaded into the game. Since the browser upgrade, there is at least a 10 second delay each time Flash tries to load image data that has already been cached. The strange thing is that if you minimize the browser, the request comes through instantly.

We confirmed this behavior using an extension called HttpFox which allows you to view incoming and outgoing requests. We also reverted back to Firefox 3.5 and confirmed that the issue did not occur in that version. Additionally, we've confirmed that this issue does not occur in either IE8 or Chrome for Windows.

This happened

Every time Firefox opened

== We upgraded to Firefox 3.6

We are developing a Flash game. Since we upgraded from Firefox 3.5 to 3.6 we have noticed a strange performance issue. Our game uses http to make requests for assets that are loaded into the game. Since the browser upgrade, there is at least a 10 second delay each time Flash tries to load image data that has already been cached. The strange thing is that if you minimize the browser, the request comes through instantly. We confirmed this behavior using an extension called HttpFox which allows you to view incoming and outgoing requests. We also reverted back to Firefox 3.5 and confirmed that the issue did not occur in that version. Additionally, we've confirmed that this issue does not occur in either IE8 or Chrome for Windows. == This happened == Every time Firefox opened == We upgraded to Firefox 3.6

Additional System Details

Installed Plug-ins

  • -Adobe PDF Plug-In For Firefox and Netscape
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Default Plug-in
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • Google Update
  • Shockwave Flash 10.0 r45
  • Version 1.0.3, copyright 1996-2009 The VideoLAN Teamhttp://www.videolan.org/
  • Next Generation Java Plug-in 1.6.0_18 for Mozilla browsers

Application

  • User Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3

More Information

Application Basics
Name
Firefox
Version
3.6.3
Profile Directory
Open Containing Folder
Installed Plugins
about:plugins
Build Configuration
about:buildconfig
Extensions
Name
Version
Enabled
ID
Web Developer
1.1.8
true
Java Console
6.0.18
true
Delicious Bookmarks
2.1.072
true
{2fa4ed95-0317-4c6a-a74c-5f3e3912c1f9}
Amazon Wish List
1.1
true
amznUWL@amazon.com
Modified Preferences
Name
Value
accessibility.typeaheadfind.flashBar
0
browser.places.smartBookmarksVersion
2
browser.startup.homepage_override.mstone
rv:1.9.2.3
extensions.lastAppVersion
3.6.3
network.cookie.prefsMigrated
true
places.last_vacuum
1269285523
privacy.sanitize.migrateFx3Prefs
true
security.warn_viewing_mixed
false

cor-el
  • Top 10 Contributor
  • Moderator
17262 solutions 156014 answers

A good place to ask questions and advice about web development is at the MozillaZine Web Development/Standards Evangelism forum. The helpers at that forum are more knowledgeable about web development issues. You need to register at the MozillaZine forum site in order to post at that forum.

See http://forums.mozillazine.org/viewforum.php?f=25

A good place to ask questions and advice about web development is at the MozillaZine Web Development/Standards Evangelism forum. The helpers at that forum are more knowledgeable about web development issues. You need to register at the MozillaZine forum site in order to post at that forum. See http://forums.mozillazine.org/viewforum.php?f=25