Introducing PerfCompare’s Simple View
We heard you. You don’t want to open your PerfCompare performance comparison and feel like you need a background in statistics to interpret the Mann-Whitney-U results. Cliff’s Delta, CLES, and … Read more
The Road to Better Performance Profiles – Part 2
Following the symbolication work from Part 1, I undertook two more efforts to improve performance profiles for the Performance team. Native Profiling (Bugs 2030161, 2030166, 2047451, and 2030423) The first … Read more
Telemetry Alerting: How It Works
We recently released the telemetry alerting beta, and announced it in the blog post here! This blog post will dive into the details of how it works across Treeherder, and … Read more
Telemetry Alerting Beta Announcement
We’re happy to announce that the Telemetry Alerting beta is now open to everyone! Monitoring for changes in telemetry probes that you own can be difficult to do on a … Read more
The Road to Better Performance Profiles – Part 1
Since joining the Firefox Performance team as a Software Engineering Intern back in May, I’ve been working on improving performance profiles. Firefox developers need performance profiles that are readable, readily … Read more
Firefox 144 ships interactionId for INP
TL;DR Firefox 144 ships PerformanceEventTiming.interactionId, which lets browsers and tools group events that belong to the same user interaction. This property is used to calculate Interaction to Next Paint (INP), … Read more
Performance Tools Newsletter (H1 Edition)
Welcome to the latest edition of the Performance Tools Newsletter! The PerfTools team empowers engineers with tools to continuously improve the performance of Mozilla products. See below for highlights from … Read more
Performance Testing Newsletter (Q4 Edition)
Welcome to the latest edition of the Performance Testing Newsletter! The PerfTools team empowers engineers with tools to continuously improve the performance of Mozilla products. See below for highlights from … Read more
Introducing the Chrome Extension for the Firefox Profiler
What is the Firefox Profiler? The Firefox Profiler is a performance analysis tool designed to help developers understand and optimize the performance of websites and Firefox itself. It allows you … Read more
Performance Testing Newsletter (Q3 Edition)
Welcome to the latest edition of the Performance Testing Newsletter! The PerfTools team empowers engineers with tools to continuously improve the performance of Mozilla products. Last quarter was MozWeek, and … Read more
Announcing PerfCompare: the new comparison tool !
About two years ago, I joined the performance test team to help build PerfCompare, an improved performance tool designed to replace Perfherder’s Compare View. Around that time, we introduced PerfCompare … Read more
Performance Testing Newsletter, Q2 Edition
Welcome to the latest edition of the Performance Testing Newsletter! The PerfTools team empowers engineers with tools to continuously improve the performance of Mozilla products. See below for highlights from … Read more