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
Articles in “Uncategorized”
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
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
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, Q1 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
New Sheriffing feature and significant updates to KPI reporting queries
A year ago I was sharing how a Mozilla Performance Sheriff catches performance regressions, the entire Workflow they go through, and the incoming improvements. Since I joined the Performance Tools … Read more
The Firefox Profiler team was at FOSDEM 2023
The Free and Open source Software Developers’ European Meeting (FOSDEM) 2023 took place on the 4th and 5th of February. This was the first in-person FOSDEM since 2020, and for … Read more
What’s new with the Firefox Profiler? (Q3 2022)
As the Perf-Tools team, we are responsible for the Firefox Profiler. This newsletter gives an overview of the new features and improvements we’ve made in the third quarter of 2022. … Read more
A different perspective
Usually, in our articles, we talk about performance from the performance engineer’s perspective, but in this one, I want to take a step back and look at it from another … Read more
Prioritized Task Scheduling API is Prototyped in Nightly
In bug 1734997, we prototyped the Prioritized Task Scheduling API. Having the API prototyped empowers us to experiment with the benefits of this API. It is enabled by default in … Read more