Windows 10 vs. Windows WSL vs. Linux - Ubuntu / openSUSE / Debian / Clear Linux

To no surprise, the I/O / disk performance is the main area where Windows Subsystem for Linux (WSL) continues to struggle... Oddly though in this test profile Clear Linux running bare metal on the Coffee Lake system was suffering from a performance shortfall too. Windows 10 Pro bare-metal meanwhile isn't too far behind the native Linux distributions on EXT4 (or openSUSE with Btrfs for root / XFS home).

With the Netperf benchmarking, depending upon the test, the distributions running via WSL tended to perform a little bit slower than Windows 10 and the other Linux distributions to running roughly at the same speed. Between the Linux distributions there wasn't much of a difference in the performance with Netperf.