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→Startup Performance
=== Startup Performance ===
Remeasuring 3.5 cold startup on WinXP is giving roller-coaster numbers, ups and downs in the >20% range between builds with changes that are seemingly innocuous. Focus this week is on figuring out how to get stable numbers there.
At all ranges in the graph, the 3.5 WinXP cold startup numbers are all showing a regression in 3.6/3.7... again. I'll re-open that bug and work on figuring out a regression range. However, this is blocked on getting reliable numbers out of 3.5, see above.
Highlights from the [http://autonome.wordpress.com/2009/10/17/firefox-startup-performance-weekly-summary-6/ weekly update post]:
* Ben Hsieh’s work to improve fastload cache invalidation landed in {{bug|511761}}, with a 3% win on warm startup of WinXP.
* Alfred Kayser landed {{bug|511754}}, which improves JAR file reading efficiency.
* Rob Strong closed {{bug|521956}} and started some cleanup of nsUpdateService, further reducing the size of it for {{bug|311965}}.
* Drew has a patch up for {{bug|506814}}, getting rid of ChangeGetPersistentDescriptor/SetPersistentDescriptor on Mac, needs review Josh.
Join us on IRC in [http://irc.mozilla.org/#startup #startup].
=== Security ===
