DragonFlyBSD's Meltdown Fix Causing More Slowdowns Than Linux: Following the move by Linux to introduced Kernel Page Table Isolation (KPTI) to address the Meltdown vulnerability affecting Intel CPUs, DragonFlyBSD has implemented better user/kernel separation to address this issue. While the Linux performance hit overall was minor, in our tests carried out so far the DragonFlyBSD kernel changes are causing more widespread slowdowns.

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