core(mpfid): add list of loaf durations to debugdata #15685
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brendankenny
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connorjclark
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adamraine
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Dec 11, 2023
| @@ -92,6 +108,7 @@ class MaxPotentialFID extends Audit { | |||
| type: 'debugdata', | |||
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We won't see the observedLoafs if they were all below FCP in this case. The function will still return undefined because there is no max duration/blocking events after FCP.
adamraine
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Dec 11, 2023
brendankenny
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Dec 11, 2023
| }); | ||
| if (loafEvents.length === 0) return; |
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This case won't really hurt anything without this check, so is mostly for aesthetics (prevent empty {type: 'debugdata', observedLoafs: []} hanging around in LHRs)
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Building on #15684, also logs LoAF startTime/durations in mpfid debugdata to be able to evaluate if a windowed function over LoAFs (e.g. max sum of LoAF blockingDurations in a 5s window) would be useful.
No visible changes. Again the intended purpose is analysis via a source like HTTP Archive.
I also didn't realize how "minimal" "Tests are minimal" was in #15684 because I forgot to add the unit test file to the commit. Whoops! Added in this PR.