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dietrich

Firefox Startup Performance Weekly Summary

First, the numbers. This is the first round where all the posted numbers are from Talos. We're getting closer to having Windows numbers for cold startup (details further down). The cold numbers didn't have much in the way of results yet, only 3-5 boxes for today's numbers, and given the variability we should probably put more boxes on those. The notable datapoint is that cold startup on Mac for 3.6 is better than for trunk, which is odd since it's been the opposite in all of our manual testing, and most of the big wins haven't made it to the branch yet. It could be because of the dearth of results so far. Next week I'll include the dirty profile test results in these tables as well.

Cold Startup

Platform 3.5 3.6 Trunk
Mac Leopard (10/23) 15605ms 13120ms (-16\%) 13859ms (-11\%)
Win XP
Win Vista
Linux (10/23) 7056ms 7159ms (1\%) 7204ms (2\%)
Warm Startup
Platform 3.5 3.6 Trunk
Mac Leopard (10/23) 1451ms 1108ms (-23\%) 1017ms (-30\%)
Win XP (10/23) 459ms 462ms (0\%) 449ms (-2\%)
Win Vista (10/23) 535ms 544ms (1\%) 506ms (-5\%)
Linux (10/23) 625ms 632ms (1\%) 629ms (0\%)
As usual, more details and links are available on [the project wiki](https://wiki.mozilla.org/Firefox/Projects/Startup_Time_Improvements), and we're available to answer questions in [\#startup on irc.mozilla.org](irc://irc.mozilla.org/\#startup).