Firefox/Projects/Startup Time Improvements: Difference between revisions

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Revision as of 17:51, 20 July 2011

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→‎Help Wanted/Onhold

Stechz

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+__NOTOC__
 = Overview =
-'''Project lead:''' Dietrich Ayala <br/>
-'''Project members:''' Ryan Flint, Drew Willcoxon, David Dahl, Vlad Vukićević, Taras Glek, Joel Reymont, Ben Hsieh
-'''Description:''' Investigate areas for improving startup time of the Mozilla platform, find & fix issues that help Fennec and WinCE.
+'''Description:''' Improve startup time of Firefox and Fennec on all operating systems and platforms, including mobile devices.
-'''Bugs:'''
+'''Project lead:'''  <br/>
-* [http://tinyurl.com/ygbnzmd Open] (identified by "[ts]" in the whiteboard field)
+'''Project members:''' Taras Glek,  Ben Hsieh, Steve Fink, Michael Wu, Shawn Wilsher
-* [http://tinyurl.com/yjp8d6w Fixed]
-* [http://bit.ly/5t9fA9 Fixed in 3.6
-'''Results'''
+'''Bugs:''' [http://tinyurl.com/ygbnzmd Open] | [http://tinyurl.com/yjp8d6w Fixed] | [http://bit.ly/5t9fA9 Fixed in 3.6]
-* [http://people.mozilla.org/~dietrich/snapshot/ Performance Snapshot] (snapshot numbers for last 7 days, and version comparisons)
+'''Results''': [http://graphs.mozilla.org/dashboard/snapshot/ Performance Snapshot] (snapshot numbers for last 7 days, and version comparisons)
-* Performance graphs
-** [http://bit.ly/5fjmP9 Windows XP]
-** [http://bit.ly/8FjKvj Windows Vista]
-** [http://bit.ly/7aHx3r Mac Leopard]
-** [http://bit.ly/8wUHGs Linux]
-[http://autonome.wordpress.com/tag/startup/ Weekly status updates]
+'''Graphs:''' [http://bit.ly/5fjmP9 Windows XP] | [http://bit.ly/8FjKvj Windows Vista] | [http://bit.ly/7aHx3r Mac Leopard] | [http://bit.ly/8wUHGs Linux]
+'''Status:''' [http://autonome.wordpress.com/tag/startup/ Weekly status updates]
 =Active Projects=
+<onlyinclude>
+{|border="1" cellspacing="0" cellpadding="2"
+!Estimated win
+!Bug #
+!Summary
+!Owner
+!Status
+!Notes
+|-
+|~10%
+|[[Firefox/Projects/2010Q3_Dirty_Startup_Reduction|"Dirty Profile" Startup Reduction]]
+|Constant startup relative to profile size
+|Shawn Wilsher
+|
+|
+|-
+|significant
+|{{bug|558200}}
+|Extension profiler platform api
+|Steve Fink
+|
+| There is an easy way to provide feedback to extension developers to help them figure out why their extension is misbehaving. We need to implement that ASAP, so typical firefox installs(with lots of extensions) can be fast
+|}
+</onlyinclude>
+=Help Wanted/Onhold=
+{|border="1" cellspacing="0" cellpadding="2"
+!Estimated win
+!Bug #
+!Summary
+!Owner
+!Status
+!Notes
+|-
+|~8%
+|{{bug|561842}}
+|Fold libraries into libxul
+|Ted Mielczarek
+|
+|proof of concept done
+|-
+|up to 40%
+|{{bug|531406}}
+|Optimize code locality in binaries. Working on enabling pgo atm.
+|Taras Glek
+|
+|Linux almost done, need to figure out integration. Windows proof of concept needs work.
+See [http://blog.mozilla.com/tglek/2010/02/19/teaching-ld-to-optimize-binaries-for-startup/ blog post] for more details. Taras and Ehsan working on Windows locality improvements ({{bug|553721}}).
+|-
+|~10%
+|{{bug|512584}}
+|Fast paths for Cc/Ci
+|
+|
+|Confirmed win. Unfortunately this approach touches a lot of sensitive code, might be easier to port js to not use Cc/Ci
+|-
+|TBD
+|{{bug|513149}} {{bug|553456}}
+|Speed up CSS parsing
+|Zack Weinberg
+|
+|
+|-
+|significant
+|{{bug|559663}}
+|Measuring IOPs
+|
+|
+|Our current infrastructure does not measure cold startup effectively, it should.
+|
+|-
+|TBD
+|{{bug|569629}}
+|Get rid of static initializers
+|
+|
+|These slowdown library loading, cause a lot of pagefaults on gcc platforms.
+|}
-'''Development'''
+Other efforts:
-* {{bug|512584}} - fastpath Components.*
+* {{bug|514083}} HFS+ compression on Mac OSX 10.6
-* {{bug|525013}} - [[Firefox/Projects/Startup_Time_Improvements/Static_Build|Static build]]
-* {{bug|514083}} - HFS+ compression on Snow Leopard
-* {{bug|520309}} - new startup cache
-* {{bug|503483}} - faststart component
-* {{bug|513149}} - speed up CSS parsing
-* DOM flattening and XBL removal in Firefox
-'''Measurement & Testing'''
+'''Measurement & Testing Projects'''
 * cold startup testing
 ** {{bug|532965}} - fix Mac cold startup test
-** {{bug|522807}} - windows
+** {{bug|522807}} - make windows cold startup test
 * dirty profile testing
-** {{bug|515540}} - dirty+cold startup
 ** {{bug|527596}} - dirty Tp
 ** {{bug|FILEME}} - test an all-dirty profile