Bug 187311

Summary: MeasurementSet should merge last four segments into two if values are identical.
Product: WebKit Reporter: dewei_zhu
Component: New BugsAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: dewei_zhu, rniwa
Priority: P2    
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
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Patch rniwa: review+

Description dewei_zhu 2018-07-03 18:24:37 PDT
MeasurementSet should merge last four segments into two if values are identical.
Comment 1 dewei_zhu 2018-07-03 18:26:37 PDT
Created attachment 344252 [details]
Patch
Comment 2 Ryosuke Niwa 2018-07-03 19:31:15 PDT
Comment on attachment 344252 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=344252&action=review

> Websites/perf.webkit.org/public/v3/models/measurement-set.js:245
> +            if (!segmentationSeries.length || value !== segmentationSeries[segmentationSeries.length - 1].value)

I think it's cleaner to move this logic to addSegment and rename it to addSegmentMergingIdenticalSegments.
The function can then just compare the last value of segmentationSeries and the newly computed value.
Comment 3 dewei_zhu 2018-07-04 03:25:19 PDT
Created attachment 344271 [details]
Patch