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Since the release of WSL2 as an update to Windows 10 Insider Preview this week, we've submitted the new Windows 2 Subsystem for Linux 2 to some benchmarks against WSL1 and a Linux operating system without operating system. While WSL2 has improved I / O performance thanks to the new Hyper-V-based virtualization approach used by WSL2, performance has declined in other areas for binary file execution. Linux on Windows 10. Here are our preliminary reference results.
This comparison shows the performance of Windows 10 WSL1 compared to that of the new WSL2 when it uses the same version of Windows 10 Insiders established this week as the one that introduced support for Windows Subsystem for Linux 2. The WSL instance LTS Ubuntu 18.04 was used for testing with its default packages. In addition to reviewing the WSL1 performance against WSL2 of Ubuntu 18.04, Ubuntu 18.04.2 LTS has also been strip-tested on the same system to test the raw performance of Ubuntu on the Intel desktop tested. In addition, Clear Linux 29920 has also been tested for what has largely become a "standard reference" for Linux performance by showing what Intel systems are capable of achieving in terms of Linux performance, which is used in this comparison as a point of reference.
Originally, it was also planned to test Hyper-V itself with an Ubuntu image, but this system often crashed on this latest version of Windows 10, which was impossible. Similarly, the latest Oracle VirtualBox virtual machine was having problems with this new version of Windows 10; therefore, it has not been tested as an additional virtual machine reference point. But other WSL2 performance tests will be available soon, this is a first look at the performance capabilities of WSL2.
The same system was used for all benchmarking: an Intel Core i7 8700K Coffeelake system with 16 GB of DDR4 RAM, a 128 GB Toshiba NVMe solid state hard drive, an ASUS TUF Z370-PLUS motherboard and an Intel UHD Graphics 630 processor. Each operating system has been preserved. its default state unless otherwise specified. The open source benchmarking software Phoronix Test Suite has facilitated all these Windows 10 and Linux performance tests.
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