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Build time regression for ext.wikimediaBadges
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Regression became visible immediately after the 1.29.0-wmf.14 roll out to group2 on 2017-03-02

20:05 demon@tin: rebuilt wikiversions.php and synchronized wikiversions files: group2 to wmf.14

capture.png (1×1 px, 176 KB)

capture2.png (1×1 px, 232 KB)

p95 went from 5ms to 15ms. Minutely max went from wiggling between 500ms-1s to being between 1s-1.5s.

This is especially notable because this happened in the same release that also fixed T158813 which universally improved build times for the majority of modules, and yet this one regressed somehow - quite consistently and significantly so.

Event Timeline

Krinkle updated the task description. (Show Details)

Looking back a bit further:

It seems the weekly max is actually coming down week over week, but looking at the green lines in the bottom it's clear that were once there was a lot of breathing room in the 0-1s area, it's now consistently filling up that area and never coming below 1s.

Screen Shot 2017-03-09 at 17.44.04.png (772×2 px, 175 KB)

Seems unrelated to this module and mostly evened out. Whatever it was, most likely something related to DB responsiveness in general.