A Look At The Intel Cascade Lake Performance For Windows Server 2019 vs. Linux vs. FreeBSD Benchmarks

While WSL has been performing quite well, the one area where the Windows Subsystem for Linux remains very sluggish is with I/O workloads like the SQLite embedded database library. Windows Server 2019 with NTFS remained slower than all of the Linux/BSDs tested, including CentOS 7 with XFS which was the slowest of the other platforms. Part of this SQLite slowdown with Windows Server 2019 is likely due to Windows Defender in use by default.

Or in the case of the IOzone storage benchmark, Windows Server 2019 (sans WSL) was performing similarly to FreeBSD 12 with ZFS but that was much slower than the four tested Linux distributions.

The Golang performance does remain slower on Windows than BSD/Linux sans in the garbage collection performance, which some may coincidentally find funny.

In most Java workloads, meanwhile, the Windows Server performance with OpenJDK was similar to that of the Linux distributions.