On Wed, 15 Nov 2023 16:30:05 +0000 Ryan Roberts <ryan.roberts@xxxxxxx> wrote: > However, the primary motivation for this change is to reduce the number > of tlb maintenance operations that the arm64 backend has to perform > during fork Do you have a feeling for how much performance improved due to this? Are there other architectures which might similarly benefit? By implementing ptep_set_wrprotects(), it appears. If so, what sort of gains might they see?