Open Bug 487832 (tb-startupperf) Opened 11 years ago Updated 3 days ago
[meta] Thunderbird startup performance issues
No description provided.
Focusing this bug on Thunderbird startup performance. Tying to: * Bug 527592 - warm start about 33 % slower than with Thunderbird 2.0 * Bug 604788 - Thunderbird takes several seconds to startup (maybe libxul related) * Bug 462862 - Implement start up performance tests for Thunderbird * Bug 441710 - Thunderbird compose and UI occasionally freezes/slow for 3-60 seconds unexpectedly and continually - caused by calendar/lightning issues [meta] - because although most are not startup (except 569555) some can easily impact the early time after startup and thus the startup time as perceived by the user. ** Bug 569555 - TB with lightning unresponsive at start, with high CPU * Bug 163964 - add option to speedup imap startup by skipping folder discovery and other niceties * And also recent FIXED bugs ** Bug 427614 - increased memory usage on TB startup of 100-120MB shortly after profile manager, and 100% cpu for several seconds ** Bug 481065 - local folder db's opened on startup In bug 533441 rs's notes there are many core Mac startup improvements on trunk that aren't on branch. Many of them are mentioned in the wiki and blog posts noted below. (and the same can be said of all OS) Core: * there's a lot to "get for free" from core and so was tempted to add core bugs via meta Bug 447581 - startup performance. But some percentage is firefox specific and the bugmail may irritate watchers of this bug. So for now, noting there is mucho information worth reading in that bug and in related wiki , and singling out just a few bugs to block: ** Bug 520309 - startup cache - replacement for fastload cache - just because of it's numerous related bugs. ** Bug 506431 - UTF8 to UTF16 conversion showing up in startup profiles ** Bug 91242 - CSS parsing is 5.5% of startup time ** there may be an add-on manager bug or two worth calling out amongst Bug 461973 - Extension manager API rewrite tracking bug  See Bug 447581 and related blog updates at http://autonome.wordpress.com/tag/startup/ whose current state is summarized at https://wiki.mozilla.org/Firefox/Projects/Startup_Time_Improvements If I have missed any major points or bugs, please adjust this bug.
Bug 600713 - Cache system font information in startupcache (affects only win7?) (seems not to be in bug 447581 's dependency list)
Depends on: 600713
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