Qt 5.9.5 Doubles Qt Quick Performance On 64-bit ARM, 18x JavaScript Improvement
Written by Michael Larabel in Qt on 24 April 2018 at 06:43 AM EDT. 14 Comments
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The Qt Company had been working on performance improvements for 64-bit ARM (AArch64) as part of the Qt 5.9 LTS cycle and continuing through with the ongoing long-term support point releases, and that work is paying off.

Qt's Tuukka Turunen has shared today that as of the recently released Qt 5.9.5 that came earlier this month, on 64-bit ARMv8 the Qt Quick performance has improved by 2x compared to the older Qt 5.6.3 LTS release. Even more profound, the JavaScript performance is 18x faster with Qt 5.9.5 over that same older LTS branch.

These Qt Quick performance tests were done on AArch64 hardware running embedded Linux with QML Bench and V8 Bench.

Making things more exciting, the upcoming Qt 5.11 (non-LTS) is about 20% faster already than the Qt 5.9 branch. Qt 5.11 should be released at the end of May. Qt 5.12 meanwhile will be the next LTS branch due out late in 2018 and will likely contain even more performance optimizations.

More details on this Qt performance tuning work for embedded devices can be found via the Qt.io blog.

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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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