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
Since we’ve added mach try perf, quite a few improvements have been made, along with new features added. Below, you’ll find a summary of the most important changes. If mach … Read more
Recently, we had an odd regression in our page load tests. You can find that bug here. The regression was quite large, but when a developer investigated, they found that … Read more
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
Introduction I have been a member of the performance test team for the past two and a half years. During that time, the performance team has had many discussions about … Read more
In July there were 105 alerts generated, resulting in 20 regression bugs being filed on average 6.6 days after the regressing change landed. Welcome to the July 2021 edition of … Read more
In the last six months the Firefox performance team has implemented changes to improve startup, responsiveness, security (Fission), and web standards. Startup and perceived startup Doug Thayer and Emma Malysz … Read more
As the Perf-Tools team, we are responsible for the Firefox Profiler. This tool is built directly into Firefox to understand the program runtime and analyze it to make it faster. … Read more
In March there were 288 alerts generated, resulting in 28 regression bugs being filed on average 4 days after the regressing change landed. Welcome to the March 2021 edition of … Read more
In September there were 153 alerts generated, resulting in 25 regression bugs being filed on average 7.8 days after the regressing change landed. Every time code is pushed to autoland … Read more
Perfherder is one of the primary tools used by our performance sheriffs to triage and investigate regression (and improvement) alerts. It’s also a key part of the workflow any Firefox … Read more