On mobile, Google is using Android App Bundles to optimize downloads on a per-device level, and isolatedSplits to allow feature splits to be loaded on demand. This results in “keeping your Mac cooler and those fans quiet.” Tab Throttling - of JavaScript Timer wake-ups in pages that are not currently in view - introduced with Chrome 87 (and made widely available in version 88) is also responsible for a 65% improvement on Apple Energy Impact score for pages in the background. On macOS, Google has recently shrunk the memory footprint of background tabs by up to 8%, or just over 1GB on some system. The browser is also smarter about using and discarding memory:Ĭhrome now reclaims up to 100MiB per tab, which is more than 20% on some popular sites, by discarding memory that the foreground tab is not actively using, such as big images you’ve scrolled off screen. Even more than that, we’ve improved browser responsiveness by up to 9%. In Chrome M89, we’re seeing significant memory savings on Windows–up to 22% in the browser process, 8% in the renderer, and 3% in the GPU. It’s now used everywhere on Chrome for Android and 64-bit Windows. PartitionAlloc is optimized for low allocation latency, space efficiency, and security. With the latest Chrome release, Google is using its own advanced memory allocator. Chrome is perennially criticized for its memory usage, and Google has been working to address those complaints in recent browser releases for Mac, Windows, and Android.
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