Google has detailed the optimizations it implemented in Chrome since August last year. The browser now runs the Speedometer 3 benchmark 22% faster, scoring up from 42.84 to 52.35 points. According to the company, it is the best performance result among the mainstream browsers on the market. This way, it will save users 58 million hours of page loading time per year.
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In its reports, Google points that between April 2022 (Chrome 101) and August 2024 (Chrome 128), Chrome's Speedometer 3 performance improved by 94%. Its scores rose from ~22 points to 42.84 points.
Changes that have resulted in this improved browser performance
- Optimized memory allocation for DOM, CSS, and rendering structures.
- Optimized Blink engine to retain only necessary states.
- Much improved CPU cache utilization.
- Upgraded the Oilpan garbage collector
- Improved string handling and transition to rapidhash hashing algorithm
- Refined hashing, filtering, and validation across data structures
- Accelerated glyph shaping for text rendering
What's Speedometer 3.0?
If you are not familiar with the Speedometer 3.0 benchmark, here's a brief explanation. The software was created by Mozilla, Google, Microsoft, and Apple. It tries to replicate real-world web browsing load. Moreover, it includes multiple test that involve several popular development frameworks, scripts and technology. Those incude:
- Frontend Frameworks: Angular, React, Vue, Svelte, etc.
- Rendering: Canvas, SVG, and complex CSS processing
- Content Handling: Large DOM trees, WYSIWYG editing (CodeMirror, TipTap)
- Data Visualization: Chart.js, Observable Plot interactions
- Web Applications: Simulations using Next.js and Nuxt frameworks
Finally, for more natural results, the benchmark specially run several popular usage scenarious, including task management, news site interaction, and chart review.
You will find the official announcement in the Chromium blog.
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