You should make sure that you disable "hyperthreading" on the Linux side for a like-for-like comparison. OpenBSD famously removed support for "hyperthreading"

You should make sure that you disable "hyperthreading" on the Linux side for a like-for-like comparison. OpenBSD famously removed support for "hyperthreading" at the time of a "Spectre" vulnerability that you may have heard of. (-: Linux tried the same approach, but it had a severe impact upon Linux performance. So "hyperthreading" got enabled by default again. * https://mail-archive.com/source-changes@openbsd.org/msg99141.html https://mail-archive.com/source-changes@openbsd.org/msg99141... * https://theregister.com/2018/11/20/linux_kernel_spectre_v2_patch_slowdown_intel/ https://theregister.com/2018/11/20/linux_kernel_spectre_v2_p...