Mozilla, the maker of Firefox, has launched an investigation into the impact of telemetry on browser performance on Android. An initial report shows that telemetry adds extra CPU time.
Among other things, a test was done in which the CNN website was loaded. In addition, telemetry added 16.5 seconds of extra CPU time to loading the website. But starting the browser is also affected by telemetry: it takes forty percent more CPU time than when telemetry is turned off, according to the first reports about the problem.
According to Mozilla, the problems arise because telemetry updates on Android are not grouped and are therefore always added to the database separately. In addition, the entire database is written to disk with every update. Telemetry is collected on a large scale, which means many writes are performed. This has an impact on, among other things, starting the browser, loading websites and playing media.
Mozilla is currently investigating the precise impact of the problem and how it was possible that it was not noticed earlier . In the meantime, Android users can choose to disable telemetry in the browser for better performance.
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