Original 3/7: On Mac, Google is touting that Chrome 99 has “achieved the highest score to date of any browser – 300 – in Apple’s Speedometer.” That benchmark from the WebKit team measures the responsiveness of a browser, with Safari usually coming in at around 277-9. Similarly, when the Spectre CPU exploit hit, we traded off performance to help guarantee the safety of our users. For example, with pointer compression, we were willing to take a small performance hit for the large memory savings it provided. You’ll notice some projects actually decrease our Speedometer score, as building an entire browser is about managing trade offs. In all, the Speedometer score has improved 83%, though there have been some regressions: Improvements/technologies include:įast lookups, the Ignition + TurboFan compilers, blazingly fast parsing, faster JS calls, Spectre, Pointer Compression, Short builtins, Sparkplug ( 2), and LTO+PGO Google also uses a “combination of internal benchmarking infrastructure and public, industry-standard benchmarks, to continuously measure Chrome’s performance.”Īn annotated graph starting in 2015 measures Chrome’s Speedometer scores on a 13-inch MacBook. It says that Speedometer 2.0 is the “most reflective of the real world, and most broadly used today” when it comes to comparing the JavaScript performance of browsers. Update 3/15: In a follow-up blog post this week, the Chrome team provided more details on this milestone. This was tested on a M1 Max MacBook Pro running macOS 12.3.1. Update 6/6: After announcing a Speedometer score of 300 in March with Chrome 99 for Mac, Google says version 1.0 (arm64) - currently in Canary - is now 20% faster at 360. The company touts a handful of speed improvements, including with the Speedometer benchmark, on both Chrome for Mac and Android. Google is continuing its work to speed up Chrome with version 99 released last week.
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