This is an official notice of intent to deploy the experiment in bug
1018200 to the beta channel.
The experiment is an A/B test to determine the optimal value of the
dom.ipc.plugins.unloadTimeoutSecs on the FF32 beta. This setting
determines primarily how long we wait to unload Flash and other plugins
after a user isn't using it any more while browsing. Users in the
experiment will be grouped into 8 equal groups whose timeouts will be
set to various values: 0, 5, 15, 30, 60, 90, 120, and 300 seconds.
The experiment parameters are:
MinVersion: 32.0
MaxVersion: 34.*
Start Date: 01-Jul-2014
End Date: 02-Sep-2014
Maximum runtime: 42.0 days
Update Channels: beta
Sample Rate: 5%
Low-priority experiment: this experiment is lower-priority than the
translation experiment already scheduled for beta, so any users eligible
for that experiment will participate in that one first. A reminder that
the experiment system only runs one experiment at a time, so there is no
chance of multiple experiments conflicting.
To analyze the results I intend after 2-3 weeks to correlate the
experiment groups against the telemetry measurement for plugin launch
time (bug 1011136). This will tell us both how often users are launching
plugins, but also how long those plugin launches take. My intent is to
pick a final value for this preference based on the data before we ship
FF32 to release.
Chad, I'm looking for your approval to use 5% of the beta population for
this experiment.
Release-drivers, I am looking for your approval to enable this
experiment as soon as Kamil completes QA verification on staging.
gps, I would like you to take care of getting this experiment deployed
to production when everything is ready and monitoring the deployment,
since I will be on vacation.
I want to thank Qeole, a contributor who implemented the correct timeout
setting, the telemetry probe, and this experiment all himself. He/she
has done this thoughtfully and well.
--BDS
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