Performance insight audits

[max-ostapenko]

• Some reformatting without affecting the logic

[tunetheweb]

Interesting idea.

As it's sometimes a many-one mapping from new to old, will this lead to duplication?

Also, because of that, it's not true to see they are continuations of the old audits. In some cases they are (though tweaked), in other cases they are a combination of several audits.

Since we never exposed the individual lighthouse audits before in the CWV Tech Report (well we did a few, but not many and none of these) I'm wonder if we need the mapping and shouldn't just start the insights from the time we start to gather them as if they were completely new audits?

[max-ostapenko]

As it's sometimes a many-one mapping from new to old, will this lead to duplication?

No. We group by name and category (category is performance and names will collapse).
It may be an optimistic PassRate though, as we'll save a pass when at least one passed.

Also, because of that, it's not true to see they are continuations of the old audits. In some cases they are (though tweaked), in other cases they are a combination of several audits.

Since we never exposed the individual lighthouse audits before in the CWV Tech Report (well we did a few, but not many and none of these) I'm wonder if we need the mapping and shouldn't just start the insights from the time we start to gather them as if they were completely new audits?

@tunetheweb So let's skip all the old ones? Data starts from May 2025 CrUX then?

[tunetheweb]

@tunetheweb So let's skip all the old ones? Data starts from May 2025 CrUX then?

Will we get the longer history for audits that didn't change? Or are we starting everything from May 2025?

[max-ostapenko]

My idea was to reprocess the data for version breakdowns (form 2020-01) once we have an idea for a new DB setup.

How far would you want to go? The earliest I've seen is somewhere in 2017.

[tunetheweb]

Yeah looks like we started running Lighthouse from June 2017. Sure let's go all the way back.

In which case it might be useful to keep the old metrics and just let them die out when we remove them from Lighthouse? That would also give us an overlap of the old and new if anyone ever wanted to compare them.

[max-ostapenko]

Ok, removed the mapping.
Let's collect all of them.

[tunetheweb]

LGTM