TestEngineering/Performance/Glossary

Backfill

Definition needed

Data point

Definition needed

DOM Content Flushed (dcf)

Definition needed

Downstream

Definition needed

First Contentful Paint (fcp)

Definition needed

First Non-Blank Paint (fnbpaint)

Definition needed

Gecko profiles

Definition needed

mitmproxy

Mitmproxy is a third-party open-source tool (found here in github) that allows the recording of a live web page and saving it as a playback archive. Using Mitmproxy's 'mitmdump' tool, the recorded page can be played back through a local proxy browser proxy; then browsing to the URL loads the page from the mitmproxy recording instead of the live site.

The Raptor performance testing framework uses Mitmproxy for Raptor page-load performance tests. Mitmproxy is available as a python mozbase/mozproxy module for import in any python project.

Noise (regarding performance tests)

Definition needed

Nudge

Definition needed

Perf Sheriff

Definition needed

Perfherder

Definition needed

Raptor

Raptor is a performance testing framework used for running browser page-load and browser benchmark tests. Raptor can run performance tests on Firefox desktop, Firefox android (Fennec, Geckoview example app, and the android components Reference Browser), and Google Chrome/Chromium. For more information please refer to the Raptor wiki page.

Retrigger

Definition needed

SETA

Definition needed

Talos

Definition needed

Treeherder

Definition needed

Time To First Interactive (ttfi)

Definition needed

R/b

Short name for retrigger/backfill.

WebPageTest

Definition needed