View source for Performance/ProjectArchive

=Performance Project Archive=
====<span style="color: green">"Cold" page load benchmark</span>====
{{PerfProject
|impact={{desktop}}
|team=Nathan Froyd (lead), Avi Halachmi
|duration=TBD
|goal=Create a reliable<sup>1</sup> Talos benchmark for 'cold' page load  times.
<sup>1</sup><span style="font-size: 80%;">Reliable in this case refers to minimizing variability in the data between runs on the benchmark system.</span>
|reports=TeamStatus: [http://teamstat.us/#show/irc.mozilla.org/perf/froydnj Nathan Froyd], [http://teamstat.us/#show/irc.mozilla.org/perf/avih Avi Halachmi]
|work=
|dependencies=
|notes=This project will start by exploring viability of such a benchmark. If the benchmark turns out to be infeasible, we will document the results and move on to another project.

The benchmark approach was infeasible. Alternative tests will be considered.
}}
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====<span style="color: green">Replace Add-on Manager SQLITE with JSON file</span>====
{{PerfProject
|impact={{desktop}} {{mobile}}
|team=Irving Reid (lead), Felipe Gomes
|duration=6 weeks (approx week of May 27, 2013)
|goal=Goal: Reduce Add-on Manager impact on start-up time<sup>1</sup> and runtime pauses<sup>2</sup> by removing SQLITE database from XPI Provider and Add-on Repository and replacing with JSON<sup>3</sup>.
<sup>1</sup><span style="font-size: 80%;">Start-up time reduction by reducing the amount of I/O required before first paint.</span><br/>
<sup>2</sup><span style="font-size: 80%;">Runtime pause reduction by reducing I/O required during add-on up-to-date checks and updates, and making sure as much as possible is off main thread.</span><br/>
<sup>3</sup><span style="font-size: 80%;">New implementation will do no blocking I/O except minimal loading of required data during start-up.</sup>
|reports=[http://www.controlledflight.ca/category/mozilla Irving Reid's blog], TeamStatus: [http://teamstat.us/#show/irc.mozilla.org/perf/irving Irving Reid], [http://teamstat.us/#show/irc.mozilla.org/perf/felipe Felipe Gomes]
|work= {{bug|853388}}, {{bug|853389}}
|dependencies=
|notes=
}}
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====<span style="color: green">Downloads API Rewrite</span>====
{{PerfProject
|impact={{desktop}}
|team=Paolo Amadini (lead), Raymond Lee, Felipe Gomes, Neil Deakin
|duration=Mid August for reaching the initial goal in Nightly.
Probably another month or two (with lower bandwidth) for follow-ups.
|goal=To improve responsiveness when downloads are started, by removing the main-thread I/O caused by access to "downloads.sqlite". The concrete goal is to ensure that SQL statements involving moz_downloads no longer appear in the "slow SQL" Telemetry dashboard.
|reports=firefox-dev mailing list, [http://benjamin.smedbergs.us/weekly-updates.fcgi/user/pamadini%40mozilla.com weekly updates tool].
|work={{bug|825588}}, [[Features/Desktop/Downloads_API|Feature Page]]
|dependencies=
|notes=The project should include a follow-up time frame to accommodate any changes identified after Firefox for Desktop has migrated to the new API, as well as handle requests to facilitate other Mozilla products and add-ons to migrate to the new API.
}}
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====<span style="color: green">Remove localStorage From Browser Pages</span>====
{{PerfProject
|impact={{desktop}}
|team=Marco Bonardo
|duration= 
|goal=Replace about: pages use of DOM Storage with more performant storage, like indexedDB, to remove UI hangs due to main-thread IO.
|reports=[http://blog.bonardo.net/tag/performance Marco's blog], [http://benjamin.smedbergs.us/weekly-updates.fcgi/user/mak%40mozilla.com weekly updates tool].
|work={{Bug|729777}} and dependencies
|dependencies=
|notes=
}}
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