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Investigate up/downs in start render and speedIndex for Firefox
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Something somehow was introduced the 16th of December: Firefox started to have a big diff between runs for both start render and SpeedIndex.

Lets find one "fast" and one "slow" run and compare them.

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Event Timeline

The difference is that four requests happens later:

That keep happens on and off and makes the graph going up and down.

Krinkle triaged this task as Medium priority.Jan 19 2017, 9:54 PM
Krinkle moved this task from Inbox to Backlog: Maintenance on the Performance-Team board.

We should just hope a proxy will help us.

Imarlier added a subscriber: Imarlier.

Now that Mozilla has released 57, we should open a new task to connect with them and get their help with debugging of issues (either by taking on that work themselves, or by educating us on how to do it).