December 12, 2019
Release Notes is a monthly summary of new features and product improvements.
The Main thread execution timeline that can be found in Snapshot Overview, brings transparency to what’s happening on the main thread. You will be able to see the distinction between rendering and execution phases with Style and Layout, Script Evaluation and Script Parsing and Compilation.
You can inspect how long each process blocked the main thread for and which script is to blame. Analysing main thread activity just became much easier.
Historically, Single Page Tests results pages were always set to public so you could easily share it with your team, even if they don’t have a Calibre account.
Now, you can set your Single Page Tests results to be private through both the CLI and Node.js API. Private results can only be accessed after logging into Calibre.
To run a private Single Page Test, add --private flag in the CLI:
1calibre create test https://yourwebsite.com --location=Sydney --private
When browsing specific metric data, you can filter charts by 6 months, 3 months, 1 month and 7 days intervals to drill down into performance regressions and improvements more efficiently.
Advanced filtering becomes especially helpful when you run tests frequently and tag deployments on your charts.
In October, we launched reordering Pages. Similarly, now you’re able to arrange Test Profiles.
If you change the position of Test Profiles in Settings → Test Profiles, they will appear in that order on your metric charts and Insights email reports. The first profile will also become your default profile while viewing Snapshots and the order.
If you ever wondered how to make the most of our performance platform, we wrote a Getting Started Guide. It walks through enabling core features to successfully set up a comprehensive monitoring system.
Pull Request Reviews is currently in private beta, but we already documented how to connect Calibre to your GitHub repositories to enable performance tracking on work-in-progress.
We will send you our latest web performance articles and notifications about new Calibre features.