Demystifying Web-based Mobile Extended Reality Accelerated by WebAssembly
Demystifying Web-based Mobile Extended Reality Accelerated by WebAssembly
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DOI：
10.1145/3618257.3624833
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发表时间：
2023-10
期刊：
影响因子：
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通讯作者：
Kaiyan Liu;Nan Wu;Bo Han
中科院分区：
文献类型：
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作者：
Kaiyan Liu;Nan Wu;Bo Han
通过结合各种新兴技术，移动的延展实境（XR）将真实的世界与虚拟内容融合在一起，创造出一系列沉浸式体验。尽管基于Web的XR可以提供更好的可访问性、跨平台兼容性和即时更新等有吸引力的功能，但其性能可能无法与独立的XR相提并论。作为一种低级字节码，WebAssembly有可能通过实现接近原生的执行速度来大幅加速基于Web的XR。然而，人们对基于Web的XR在WebAssembly加速方面的表现知之甚少。为了弥合这一关键差距，我们进行了首次系统和实证研究，以分析WebAssembly在四个不同平台上使用五种不同浏览器加速的基于Web的XR的性能。我们的测量结果表明，虽然WebAssemblby可以在各种情况下加速不同的XR任务，但基于Web的XR和独立XR之间仍然存在很大的性能差距。我们希望我们的研究结果可以促进实现沉浸式Web，使更广泛的受众可以通过各种新兴技术访问。
By combining various emerging technologies, mobile extended reality (XR) blends the real world with virtual content to create a spectrum of immersive experiences. Although Web-based XR can offer attractive features such as better accessibility, cross-platform compatibility, and instant updates, its performance may not be on par with its standalone counterpart. As a low-level bytecode, WebAssembly has the potential to drastically accelerate Web-based XR by enabling near-native execution speed. However, little has been known about how well Web-based XR performs with WebAssembly acceleration. To bridge this crucial gap, we conduct a first-of-its-kind systematic and empirical study to analyze the performance of Web-based XR expedited by WebAssembly on four diverse platforms with five different browsers. Our measurement results reveal that although WebAssemlby can accelerate different XR tasks in various contexts, there remains a substantial performance disparity between Web-based and standalone XR. We hope our findings can foster the realization of an immersive Web that is accessible to a wider audience with various emerging technologies.