"We navigated on real-world sites with a bot and identified Document Object Model (DOM) change patterns that don't affect pixels on the screen," explains Google. Thirdly, Google's engineers have optimized access patterns for data structures accessed more frequently with the same key, eliminating unnecessary repetitions and streamlining their performance.įinally, the latest Chrome for Macs features an intelligent redraw elimination system, detecting avoidable redraws that don't have a visible impact early and bypassing them. Some internal timers that were no longer needed were canceled altogether, allowing the CPU to go idle, a mode it never entered in previous Chrome versions. The second highlighted optimization involves tweaking JavaScript timers to reduce the number of times CPU cores are woken up, thereby reducing power consumption on Mac devices. This allowed the engineers to fine-tune garbage collection and memory compression to reduce memory usage, lessening energy consumption.
The first highlighted optimization is iframe fine-tuning, where Google's engineers realized that many iframes only live for a few seconds. Google says it has introduced "a ton" of under-the-hood energy consumption optimizations on the latest version of Chrome for macOS.
The reason why Google is optimizing Chrome battery consumption on Macs is likely because users report that Safari has much better performance on the system, leading them to use Apple's browser instead.Ĭhrome's latest improvements will also be felt by those using older Apple hardware like Intel-based Macbooks. If Chrome's Energy Saving mode is also activated, the browsing time on macOS may be extended by another 30 minutes.Įver since Apple released its own "Silicon" line of processors, it revolutionized battery life on Macbooks, leaving the Windows laptop competition way behind on that front. Google's tests on an M2-powered 13-inch MacBook Pro running macOS "Ventura" 13.2.1 allowed generic internet browsing for 17 hours and YouTube video watching for 18 hours. The latest version of Google Chrome for macOS (1.100) includes new optimizations that increase battery life on MacBooks.
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