On Thu, 08 Aug 2024 17:42:43 +0000, Colton Lewis wrote:
> This DSB guarantees page table updates have been made visible to the
> hardware table walker. Moving the DSB from stage2_split_walker() to
> after the walk is finished in kvm_pgtable_stage2_split() results in a
> roughly 70% reduction in Clear Dirty Log Time in
> dirty_log_perf_test (modified to use eager page splitting) when using
> huge pages. This gain holds steady through a range of vcpus
> used (tested 1-64) and memory used (tested 1-64GB).
>
> [...]
Applied to next, thanks!
[1/1] KVM: arm64: Move data barrier to end of split walk
commit: 38753cbc4dca431d4354319c7481f6bd1a212baf
Cheers,
M.
--
Without deviation from the norm, progress is not possible.
